The Enzyme List Class 1 — Oxidoreductases · The Enzyme List Class 1 — Oxidoreductases...

The Enzyme ListClass 1 — Oxidoreductases

Nomenclature Committeeof the

International Union of Biochemistry and Molecular Biology(NC-IUBMB)

LATEX version prepared by Andrew McDonald,School of Biochemistry and Immunology, Trinity College Dublin, Ireland

Generated from the ExplorEnz database, March 2019

© 2019 IUBMB

ContentsEC 1.1 Acting on the CH-OH group of donors 4

EC 1.1.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5EC 1.1.2 With a cytochrome as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94EC 1.1.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96EC 1.1.4 With a disulfide as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106EC 1.1.5 With a quinone or similar compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106EC 1.1.9 With a copper protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109EC 1.1.98 With other, known, physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110EC 1.1.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

EC 1.2 Acting on the aldehyde or oxo group of donors 120EC 1.2.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120EC 1.2.2 With a cytochrome as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141EC 1.2.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141EC 1.2.4 With a disulfide as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144EC 1.2.5 With a quinone or similar compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145EC 1.2.7 With an iron-sulfur protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146EC 1.2.98 With an iron-sulfur protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149EC 1.2.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

EC 1.3 Acting on the CH-CH group of donors 151EC 1.3.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151EC 1.3.2 With a cytochrome as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177EC 1.3.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177EC 1.3.4 With a disulfide as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180EC 1.3.5 With a quinone or related compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181EC 1.3.7 With an iron-sulfur protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182EC 1.3.8 With a flavin as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186EC 1.3.98 With other, known, physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190EC 1.3.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

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EC 1.4 Acting on the CH-NH2 group of donors 199EC 1.4.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199EC 1.4.2 With a cytochrome as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204EC 1.4.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205EC 1.4.4 With a disulfide as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210EC 1.4.5 With a quinone or other compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211EC 1.4.7 With an iron-sulfur protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211EC 1.4.9 With a copper protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211EC 1.4.98 With a copper protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212EC 1.4.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

EC 1.5 Acting on the CH-NH group of donors 213EC 1.5.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213EC 1.5.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225EC 1.5.4 With a disulfide as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230EC 1.5.5 With a quinone or similar compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230EC 1.5.7 With an iron-sulfur protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231EC 1.5.8 With a flavin or flavoprotein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232EC 1.5.98 With other, known, physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233EC 1.5.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

EC 1.6 Acting on NADH or NADPH 236EC 1.6.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236EC 1.6.2 With a heme protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237EC 1.6.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238EC 1.6.5 With a quinone or similar compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240EC 1.6.6 With a nitrogenous group as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243EC 1.6.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

EC 1.7 Acting on other nitrogenous compounds as donors 246EC 1.7.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246EC 1.7.2 With a cytochrome as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250EC 1.7.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252EC 1.7.5 With a quinone or similar compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253EC 1.7.6 With a nitrogenous group as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254EC 1.7.7 With an iron-sulfur protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254EC 1.7.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

EC 1.8 Acting on a sulfur group of donors 255EC 1.8.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255EC 1.8.2 With a cytochrome as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260EC 1.8.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261EC 1.8.4 With a disulfide as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263EC 1.8.5 With a quinone or similar compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266EC 1.8.7 With an iron-sulfur protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268EC 1.8.98 With other, known, physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269EC 1.8.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271

EC 1.9 Acting on a heme group of donors 272EC 1.9.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273EC 1.9.6 With a nitrogenous group as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273EC 1.9.98 With other, known, physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273EC 1.9.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273

2

EC 1.10 Acting on diphenols and related substances as donors 274EC 1.10.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274EC 1.10.2 With a cytochrome as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274EC 1.10.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274EC 1.10.5 With a quinone or related compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277EC 1.10.9 With a copper protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278EC 1.10.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278

EC 1.11 Acting on a peroxide as acceptor 278EC 1.11.1 Peroxidases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278EC 1.11.2 Peroxygenases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285

EC 1.12 Acting on hydrogen as donor 286EC 1.12.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286EC 1.12.2 With a cytochrome as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287EC 1.12.5 With a quinone or similar compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288EC 1.12.7 With an iron-sulfur protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288EC 1.12.98 With other, known, physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288EC 1.12.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289

EC 1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases) 290EC 1.13.1 Acting on single donors with incorporation of molecular oxygen (oxygenases) . . . . . . . . . . . . . . . . 290EC 1.13.11 With incorporation of two atoms of oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291EC 1.13.12 With incorporation of one atom of oxygen (internal monooxygenases or internal mixed-function oxidases) 311EC 1.13.99 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

EC 1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen 317EC 1.14.11 With 2-oxoglutarate as one donor, and incorporation of one atom of oxygen into each donor . . . . . . . . 318EC 1.14.12 With NADH or NADPH as one donor, and incorporation of two atoms of oxygen into the other donor . . . 331EC 1.14.13 With NADH or NADPH as one donor, and incorporation of one atom of oxygen into the other donor . . . . 337EC 1.14.14 With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other

donor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374EC 1.14.15 With reduced iron-sulfur protein as one donor, and incorporation of one atom of oxygen into the other donor422EC 1.14.16 With reduced pteridine as one donor, and incorporation of one atom of oxygen into the other donor . . . . 432EC 1.14.17 With reduced ascorbate as one donor, and incorporation of one atom of oxygen into the other donor . . . . 434EC 1.14.18 With another compound as one donor, and incorporation of one atom of oxygen into the other donor . . . . 435EC 1.14.19 With oxidation of a pair of donors resulting in the reduction of O2 to two molecules of water . . . . . . . . 437EC 1.14.20 With 2-oxoglutarate as one donor, and the other dehydrogenated . . . . . . . . . . . . . . . . . . . . . . . 460EC 1.14.21 With NADH or NADPH as one donor, and the other dehydrogenated . . . . . . . . . . . . . . . . . . . . 464EC 1.14.99 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464

EC 1.15 Acting on superoxide as acceptor 475EC 1.15.1 Acting on superoxide as acceptor (only sub-subclass identified to date) . . . . . . . . . . . . . . . . . . . . 475

EC 1.16 Oxidizing metal ions 476EC 1.16.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476EC 1.16.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478EC 1.16.5 With a quinone or similar compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479EC 1.16.8 With a flavin as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479EC 1.16.9 With a copper protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479EC 1.16.98 With other, known, physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480

3

EC 1.17 Acting on CH or CH2 groups 480EC 1.17.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480EC 1.17.2 With a cytochrome as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482EC 1.17.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483EC 1.17.4 With a disulfide as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484EC 1.17.5 With a quinone or similar compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486EC 1.17.7 With an iron-sulfur protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487EC 1.17.8 With a flavin as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488EC 1.17.9 With a flavin as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488EC 1.17.98 With other, known, physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489EC 1.17.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490

EC 1.18 Acting on iron-sulfur proteins as donors 491EC 1.18.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491EC 1.18.6 With dinitrogen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493

EC 1.19 Acting on reduced flavodoxin as donor 494EC 1.19.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495EC 1.19.6 With dinitrogen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495

EC 1.20 Acting on phosphorus or arsenic in donors 495EC 1.20.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495EC 1.20.2 With a cytochrome as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 496EC 1.20.4 With disulfide as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 496EC 1.20.9 With a copper protein as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497EC 1.20.98 With other, known, physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497EC 1.20.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497

EC 1.21 Catalysing the reaction X-H + Y-H = X-Y 498EC 1.21.1 Catalysing the reaction X-H + Y-H = X-Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 498EC 1.21.3 With oxygen as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 498EC 1.21.4 With a disulfide as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500EC 1.21.98 With other, known, physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502EC 1.21.99 With unknown physiological acceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503

EC 1.22 Acting on halogen in donors 504EC 1.22.1 With NAD+ or NADP+ as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

EC 1.23 Reducing C-O-C group as acceptor 504EC 1.23.1 With NADH or NADPH as donor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504EC 1.23.5 With a quinone or similar compound as acceptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 506

EC 1.97 Other oxidoreductases 506EC 1.97.1 Sole sub-subclass for oxidoreductases that do not belong in the other subclasses . . . . . . . . . . . . . . . 506EC 1.99.1 Hydroxylases (now covered by EC 1.14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508EC 1.99.2 Oxygenases (now covered by EC 1.13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 509

References 510

Index 742

EC 1.1 Acting on the CH-OH group of donorsThis subclass contains dehydrogenases that act on primary alcohols, secondary alcohols and hemi-acetals. Sub-subclasses arebased on the acceptor: NAD+ or NADP+ (EC 1.1.1), a cytochrome (EC 1.1.2), oxygen (EC 1.1.3), a disulfide (EC 1.1.4), aquinone or similar compound (EC 1.1.5), or some other acceptor (EC 1.1.99).

4

EC 1.1.1 With NAD+ or NADP+ as acceptor

EC 1.1.1.1Accepted name: alcohol dehydrogenase

Reaction: (1) a primary alcohol + NAD+ = an aldehyde + NADH + H+(2) a secondary alcohol + NAD+ = a ketone + NADH + H+

Other name(s): aldehyde reductase; ADH; alcohol dehydrogenase (NAD); aliphatic alcohol dehydrogenase; ethanoldehydrogenase; NAD-dependent alcohol dehydrogenase; NAD-specific aromatic alcohol dehydroge-nase; NADH-alcohol dehydrogenase; NADH-aldehyde dehydrogenase; primary alcohol dehydroge-nase; yeast alcohol dehydrogenase

Systematic name: alcohol:NAD+ oxidoreductaseComments: A zinc protein. Acts on primary or secondary alcohols or hemi-acetals with very broad specificity;

however the enzyme oxidizes methanol much more poorly than ethanol. The animal, but not the yeast,enzyme acts also on cyclic secondary alcohols.

References: [385, 1777, 2756, 3735, 3860]

[EC 1.1.1.1 created 1961, modified 2011]

EC 1.1.1.2Accepted name: alcohol dehydrogenase (NADP+)

Reaction: an alcohol + NADP+ = an aldehyde + NADPH + H+Other name(s): aldehyde reductase (NADPH2); NADP-alcohol dehydrogenase; NADP+-aldehyde reductase;

NADP+-dependent aldehyde reductase; NADPH-aldehyde reductase; NADPH-dependent aldehydereductase; nonspecific succinic semialdehyde reductase; ALR 1; low-Km aldehyde reductase; high-Kmaldehyde reductase; alcohol dehydrogenase (NADP)

Systematic name: alcohol:NADP+ oxidoreductaseComments: A zinc protein. Some members of this group oxidize only primary alcohols; others act also on sec-

ondary alcohols. May be identical with EC 1.1.1.19 (L-glucuronate reductase), EC 1.1.1.33 [meval-date reductase (NADPH)] and EC 1.1.1.55 [lactaldehyde reductase (NADPH)]. Re-specific with re-spect to NADPH.

References: [361, 790, 3156, 3768]

[EC 1.1.1.2 created 1961]

EC 1.1.1.3Accepted name: homoserine dehydrogenase

Reaction: L-homoserine + NAD(P)+ = L-aspartate 4-semialdehyde + NAD(P)H + H+Other name(s): HSDH; HSD

Systematic name: L-homoserine:NAD(P)+ oxidoreductaseComments: The yeast enzyme acts most rapidly with NAD+; the Neurospora enzyme with NADP+. The enzyme

from Escherichia coli is a multi-functional protein, which also catalyses the reaction of EC 2.7.2.4(aspartate kinase).

References: [310, 3624, 4036]


EC 1.1.1.4Accepted name: (R,R)-butanediol dehydrogenase

Reaction: (R,R)-butane-2,3-diol + NAD+ = (R)-acetoin + NADH + H+

5

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Other name(s): butyleneglycol dehydrogenase; D-butanediol dehydrogenase; D-(–)-butanediol dehydrogenase; buty-lene glycol dehydrogenase; diacetyl (acetoin) reductase; D-aminopropanol dehydrogenase; 1-amino-2-propanol dehydrogenase; 2,3-butanediol dehydrogenase; D-1-amino-2-propanol dehydrogenase;(R)-diacetyl reductase; (R)-2,3-butanediol dehydrogenase; D-1-amino-2-propanol:NAD+ oxidoreduc-tase; 1-amino-2-propanol oxidoreductase; aminopropanol oxidoreductase

Systematic name: (R,R)-butane-2,3-diol:NAD+ oxidoreductaseComments: Also converts diacetyl into acetoin with NADH as reductant.References: [3674, 3834]

[EC 1.1.1.4 created 1961 (EC 1.1.1.74 created 1972, incorporated 1976)]

[1.1.1.5 Transferred entry. acetoin dehydrogenase. Now EC 1.1.1.303, diacetyl reductase [(R)-acetoin forming] and EC1.1.1.304, diacetyl reductase [(S)-acetoin forming]]

[EC 1.1.1.5 created 1961, modified 1976, deleted 2010]

EC 1.1.1.6Accepted name: glycerol dehydrogenase

Reaction: glycerol + NAD+ = glycerone + NADH + H+Other name(s): glycerin dehydrogenase; NAD-linked glycerol dehydrogenase

Systematic name: glycerol:NAD+ 2-oxidoreductaseComments: Also acts on propane-1,2-diol.References: [133, 456, 2253]

[EC 1.1.1.6 created 1961]

EC 1.1.1.7Accepted name: propanediol-phosphate dehydrogenase

Reaction: propane-1,2-diol 1-phosphate + NAD+ = hydroxyacetone phosphate + NADH + H+Other name(s): PDP dehydrogenase; 1,2-propanediol-1-phosphate:NAD+ oxidoreductase; propanediol phosphate

dehydrogenaseSystematic name: propane-1,2-diol-1-phosphate:NAD+ oxidoreductase

References: [3439]

[EC 1.1.1.7 created 1961]

EC 1.1.1.8Accepted name: glycerol-3-phosphate dehydrogenase (NAD+)

Reaction: sn-glycerol 3-phosphate + NAD+ = glycerone phosphate + NADH + H+Other name(s): α-glycerol phosphate dehydrogenase (NAD+); α-glycerophosphate dehydrogenase (NAD+); glycerol

1-phosphate dehydrogenase; glycerol phosphate dehydrogenase (NAD+); glycerophosphate dehydro-genase (NAD+); hydroglycerophosphate dehydrogenase; L-α-glycerol phosphate dehydrogenase;L-α-glycerophosphate dehydrogenase; L-glycerol phosphate dehydrogenase; L-glycerophosphatedehydrogenase (ambiguous); NAD+-α-glycerophosphate dehydrogenase; NAD+-dependent glyc-erol phosphate dehydrogenase; NAD+-dependent glycerol-3-phosphate dehydrogenase; NAD+-L-glycerol-3-phosphate dehydrogenase; NAD+-linked glycerol 3-phosphate dehydrogenase; NADH-dihydroxyacetone phosphate reductase; glycerol-3-phosphate dehydrogenase (NAD+); L-glycerol-3-phosphate dehydrogenase (ambiguous)

Systematic name: sn-glycerol-3-phosphate:NAD+ 2-oxidoreductaseComments: Also acts on propane-1,2-diol phosphate and glycerone sulfate (but with a much lower affinity).References: [195, 411, 2836, 4133, 54, 1993]


6

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EC 1.1.1.9Accepted name: D-xylulose reductase

Reaction: xylitol + NAD+ = D-xylulose + NADH + H+Other name(s): NAD+-dependent xylitol dehydrogenase; xylitol dehydrogenase (ambiguous); erythritol dehydroge-

nase; 2,3-cis-polyol(DPN) dehydrogenase (C3-5); pentitol-DPN dehydrogenase (ambiguous); xylitol-2-dehydrogenase

Systematic name: xylitol:NAD+ 2-oxidoreductase (D-xylulose-forming)Comments: Also acts as an L-erythrulose reductase.References: [588, 1489, 1714]

[EC 1.1.1.9 created 1961]

EC 1.1.1.10Accepted name: L-xylulose reductase

Reaction: xylitol + NADP+ = L-xylulose + NADPH + H+Other name(s): xylitol dehydrogenase (ambiguous)

Systematic name: xylitol:NADP+ 4-oxidoreductase (L-xylulose-forming)References: [861, 1489, 1544, 3917]

[EC 1.1.1.10 created 1961]

EC 1.1.1.11Accepted name: D-arabinitol 4-dehydrogenase

Reaction: D-arabinitol + NAD+ = D-xylulose + NADH + H+Other name(s): D-arabitol dehydrogenase; arabitol dehydrogenase

Systematic name: D-arabinitol:NAD+ 4-oxidoreductaseReferences: [2252, 4250]

[EC 1.1.1.11 created 1961]

EC 1.1.1.12Accepted name: L-arabinitol 4-dehydrogenase

Reaction: L-arabinitol + NAD+ = L-xylulose + NADH + H+Other name(s): pentitol-DPN dehydrogenase (ambiguous); L-arabitol dehydrogenase

Systematic name: L-arabinitol:NAD+ 4-oxidoreductase (L-xylulose-forming)References: [588, 589]

[EC 1.1.1.12 created 1961]

EC 1.1.1.13Accepted name: L-arabinitol 2-dehydrogenase

Reaction: L-arabinitol + NAD+ = L-ribulose + NADH + H+Other name(s): L-arabinitol dehydrogenase (ribulose-forming); L-arabinitol (ribulose-forming) dehydrogenase

Systematic name: L-arabinitol:NAD+ 2-oxidoreductase (L-ribulose-forming)References: [589]

[EC 1.1.1.13 created 1961]

EC 1.1.1.14Accepted name: L-iditol 2-dehydrogenase

Reaction: L-iditol + NAD+ = L-sorbose + NADH + H+

7

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Other name(s): polyol dehydrogenase; sorbitol dehydrogenase; L-iditol:NAD+ 5-oxidoreductase; L-iditol (sorbitol)dehydrogenase; glucitol dehydrogenase; L-iditol:NAD+ oxidoreductase; NAD+-dependent sorbitoldehydrogenase; NAD+-sorbitol dehydrogenase

Systematic name: L-iditol:NAD+ 2-oxidoreductaseComments: This enzyme is widely distributed and has been described in archaea, bacteria, yeast, plants and an-

imals. It acts on a number of sugar alcohols, including (but not limited to) L-iditol, D-glucitol, D-xylitol, and D-galactitol. Enzymes from different organisms or tissues display different substratespecificity. The enzyme is specific to NAD+ and can not use NADP+.

References: [165, 449, 2195, 2757, 2835, 2775]


EC 1.1.1.15Accepted name: D-iditol 2-dehydrogenase

Reaction: D-iditol + NAD+ = D-sorbose + NADH + H+Other name(s): D-sorbitol dehydrogenase

Systematic name: D-iditol:NAD+ 2-oxidoreductaseComments: Also converts xylitol into L-xylulose and L-glucitol into L-fructose.References: [3466]

[EC 1.1.1.15 created 1961]

EC 1.1.1.16Accepted name: galactitol 2-dehydrogenase

Reaction: galactitol + NAD+ = D-tagatose + NADH + H+Other name(s): dulcitol dehydrogenase; AtuSorbD (gene name); galactitol:NAD+ 2-oxidoreductase

Systematic name: galactitol:NAD+ 2-oxidoreductase (D-tagatose-forming)Comments: Also converts other alditols containing an L-threo-configuration adjacent to a primary alcohol group

into the corresponding sugars. The enzyme from Agrobacterium fabrum C58 is part of D-altritol andgalactitol degradation pathways.

References: [3466, 4202]

[EC 1.1.1.16 created 1961]

EC 1.1.1.17Accepted name: mannitol-1-phosphate 5-dehydrogenase

Reaction: D-mannitol 1-phosphate + NAD+ = D-fructose 6-phosphate + NADH + H+Other name(s): hexose reductase; mannitol 1-phosphate dehydrogenase; D-mannitol-1-phosphate dehydrogenase;

fructose 6-phosphate reductaseSystematic name: D-mannitol-1-phosphate:NAD+ 5-oxidoreductase

References: [2403, 4237, 4238]

[EC 1.1.1.17 created 1961]

EC 1.1.1.18Accepted name: inositol 2-dehydrogenase

Reaction: myo-inositol + NAD+ = 2,4,6/3,5-pentahydroxycyclohexanone + NADH + H+Other name(s): myo-inositol 2-dehydrogenase; myo-inositol:NAD+ oxidoreductase; inositol dehydrogenase; myo-

inositol dehydrogenaseSystematic name: myo-inositol:NAD+ 2-oxidoreductase

References: [270, 2141, 4042]

[EC 1.1.1.18 created 1961]

8


EC 1.1.1.19Accepted name: glucuronate reductase

Reaction: L-gulonate + NADP+ = D-glucuronate + NADPH + H+Other name(s): aldehyde reductase; L-hexonate:NADP dehydrogenase; TPN-L-gulonate dehydrogenase; aldehyde

reductase II; NADP-L-gulonate dehydrogenase; D-glucuronate dehydrogenase; D-glucuronate reduc-tase; L-glucuronate reductase (incorrect)

Systematic name: L-gulonate:NADP+ 6-oxidoreductaseComments: Also reduces D-galacturonate. May be identical with EC 1.1.1.2 [alcohol dehydrogenase (NADP+)].References: [3544, 4062, 4373]

[EC 1.1.1.19 created 1961]

EC 1.1.1.20Accepted name: glucuronolactone reductase

Reaction: L-gulono-1,4-lactone + NADP+ = D-glucurono-3,6-lactone + NADPH + H+Other name(s): GRase; gulonolactone dehydrogenase

Systematic name: L-gulono-1,4-lactone:NADP+ 1-oxidoreductaseReferences: [3751]

[EC 1.1.1.20 created 1961]

EC 1.1.1.21Accepted name: aldehyde reductase

Reaction: alditol + NAD(P)+ = aldose + NAD(P)H + H+Other name(s): aldose reductase; polyol dehydrogenase (NADP+); ALR2; alditol:NADP oxidoreductase;

alditol:NADP+ 1-oxidoreductase; NADPH-aldopentose reductase; NADPH-aldose reductaseSystematic name: alditol:NAD(P)+ 1-oxidoreductase

Comments: Has wide specificity.References: [137, 334, 1481, 3360]


EC 1.1.1.22Accepted name: UDP-glucose 6-dehydrogenase

Reaction: UDP-α-D-glucose + 2 NAD+ + H2O = UDP-α-D-glucuronate + 2 NADH + 2 H+Other name(s): UDP-glucose dehydrogenase; uridine diphosphoglucose dehydrogenase; UDPG dehydrogenase;

UDPG:NAD oxidoreductase; UDP-α-D-glucose:NAD oxidoreductase; UDP-glucose:NAD+ oxi-doreductase; uridine diphosphate glucose dehydrogenase; UDP-D-glucose dehydrogenase; uridinediphosphate D-glucose dehydrogenase

Systematic name: UDP-α-D-glucose:NAD+ 6-oxidoreductaseComments: Also acts on UDP-α-D-2-deoxyglucose.References: [875, 2471, 3687, 3688]

[EC 1.1.1.22 created 1961]

EC 1.1.1.23Accepted name: histidinol dehydrogenase

Reaction: L-histidinol + 2 NAD+ + H2O = L-histidine + 2 NADH + 3 H+Other name(s): L-histidinol dehydrogenase

Systematic name: L-histidinol:NAD+ oxidoreductaseComments: Also oxidizes L-histidinal. The Neurospora enzyme also catalyses the reactions of EC 3.5.4.19

(phosphoribosyl-AMP cyclohydrolase) and EC 3.6.1.31 (phosphoribosyl-ATP diphosphatase).References: [18, 19, 2296, 4396]

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[EC 1.1.1.23 created 1961]

EC 1.1.1.24Accepted name: quinate dehydrogenase

Reaction: L-quinate + NAD+ = 3-dehydroquinate + NADH + H+Other name(s): quinic dehydrogenase; quinate:NAD oxidoreductase; quinate 5-dehydrogenase; quinate:NAD+ 5-

oxidoreductaseSystematic name: L-quinate:NAD+ 3-oxidoreductase

Comments: The enzyme is specific for quinate as substrate; phenylpyruvate, phenylalanine, cinnamate and shiki-mate will not act as substrates. NAD+ cannot be replaced by NADP+.


[EC 1.1.1.24 created 1961, modified 1976, modified 2004]

EC 1.1.1.25Accepted name: shikimate dehydrogenase

Reaction: shikimate + NADP+ = 3-dehydroshikimate + NADPH + H+Other name(s): dehydroshikimic reductase; shikimate oxidoreductase; shikimate:NADP+ oxidoreductase; 5-

dehydroshikimate reductase; shikimate 5-dehydrogenase; 5-dehydroshikimic reductase; DHS reduc-tase; shikimate:NADP+ 5-oxidoreductase; AroE

Systematic name: shikimate:NADP+ 3-oxidoreductaseComments: NAD+ cannot replace NADP+ [4347]. In higher organisms, this enzyme forms part of a multienzyme

complex with EC 4.2.1.10, 3-dehydroquinate dehydratase [557].References: [181, 2566, 4347, 557, 98, 4354]


EC 1.1.1.26Accepted name: glyoxylate reductase

Reaction: glycolate + NAD+ = glyoxylate + NADH + H+Other name(s): NADH-glyoxylate reductase; glyoxylic acid reductase; NADH-dependent glyoxylate reductase

Systematic name: glycolate:NAD+ oxidoreductaseComments: Reduces glyoxylate to glycolate or hydroxypyruvate to D-glycerate.References: [4431, 4432]

[EC 1.1.1.26 created 1961]

EC 1.1.1.27Accepted name: L-lactate dehydrogenase

Reaction: (S)-lactate + NAD+ = pyruvate + NADH + H+Other name(s): lactic acid dehydrogenase; L(+)-nLDH; L-(+)-lactate dehydrogenase; L-lactic dehydrogenase; L-lactic

acid dehydrogenase; lactate dehydrogenase; lactate dehydrogenase NAD-dependent; lactic dehydro-genase; NAD-lactate dehydrogenase

Systematic name: (S)-lactate:NAD+ oxidoreductaseComments: Also oxidizes other (S)-2-hydroxymonocarboxylic acids. NADP+ also acts, more slowly, with the

animal, but not the bacterial, enzyme.References: [797, 972, 1536, 3350]

[EC 1.1.1.27 created 1961]

EC 1.1.1.28Accepted name: D-lactate dehydrogenase

10


Reaction: (R)-lactate + NAD+ = pyruvate + NADH + H+Other name(s): lactic acid dehydrogenase; lactic acid dehydrogenase; D-specific lactic dehydrogenase; D-(-)-lactate

dehydrogenase (NAD); D-lactic acid dehydrogenase; D-lactic dehydrogenaseSystematic name: (R)-lactate:NAD+ oxidoreductase

References: [797]

[EC 1.1.1.28 created 1961]

EC 1.1.1.29Accepted name: glycerate dehydrogenase

Reaction: D-glycerate + NAD+ = hydroxypyruvate + NADH + H+Other name(s): D-glycerate dehydrogenase; hydroxypyruvate reductase; (R)-glycerate:NAD+ oxidoreductase

Systematic name: D-glycerate:NAD+ oxidoreductaseReferences: [1551, 3618]

[EC 1.1.1.29 created 1961]

EC 1.1.1.30Accepted name: 3-hydroxybutyrate dehydrogenase

Reaction: (R)-3-hydroxybutanoate + NAD+ = acetoacetate + NADH + H+Other name(s): NAD-β-hydroxybutyrate dehydrogenase; hydroxybutyrate oxidoreductase; β-hydroxybutyrate de-

hydrogenase; D-β-hydroxybutyrate dehydrogenase; D-3-hydroxybutyrate dehydrogenase; D-(-)-3-hydroxybutyrate dehydrogenase; β-hydroxybutyric acid dehydrogenase; 3-D-hydroxybutyrate dehy-drogenase; β-hydroxybutyric dehydrogenase

Systematic name: (R)-3-hydroxybutanoate:NAD+ oxidoreductaseComments: Also oxidizes other 3-hydroxymonocarboxylic acids.References: [268, 786, 2189]

[EC 1.1.1.30 created 1961]

EC 1.1.1.31Accepted name: 3-hydroxyisobutyrate dehydrogenase

Reaction: 3-hydroxy-2-methylpropanoate + NAD+ = 2-methyl-3-oxopropanoate + NADH + H+Other name(s): β-hydroxyisobutyrate dehydrogenase

Systematic name: 3-hydroxy-2-methylpropanoate:NAD+ oxidoreductaseReferences: [3204]

[EC 1.1.1.31 created 1961]

EC 1.1.1.32Accepted name: mevaldate reductase

Reaction: (R)-mevalonate + NAD+ = mevaldate + NADH + H+Other name(s): mevalonic dehydrogenase

Systematic name: (R)-mevalonate:NAD+ oxidoreductaseReferences: [3371]

[EC 1.1.1.32 created 1961]

EC 1.1.1.33Accepted name: mevaldate reductase (NADPH)

Reaction: (R)-mevalonate + NADP+ = mevaldate + NADPH + H+Other name(s): mevaldate (reduced nicotinamide adenine dinucleotide phosphate) reductase; mevaldate reductase

(NADPH2)

11


Systematic name: (R)-mevalonate:NADP+ oxidoreductaseComments: May be identical with EC 1.1.1.2 [alcohol dehydrogenase (NADP+)].References: [653, 4062]

[EC 1.1.1.33 created 1961]

EC 1.1.1.34Accepted name: hydroxymethylglutaryl-CoA reductase (NADPH)

Reaction: (R)-mevalonate + CoA + 2 NADP+ = (S)-3-hydroxy-3-methylglutaryl-CoA + 2 NADPH + 2 H+Other name(s): hydroxymethylglutaryl coenzyme A reductase (reduced nicotinamide adenine dinucleotide phos-

phate); 3-hydroxy-3-methylglutaryl-CoA reductase; β-hydroxy-β-methylglutaryl coenzyme A re-ductase; hydroxymethylglutaryl CoA reductase (NADPH); S-3-hydroxy-3-methylglutaryl-CoA re-ductase; NADPH-hydroxymethylglutaryl-CoA reductase; HMGCoA reductase-mevalonate:NADP-oxidoreductase (acetylating-CoA); 3-hydroxy-3-methylglutaryl CoA reductase (NADPH);hydroxymethylglutaryl-CoA reductase (NADPH2)

Systematic name: (R)-mevalonate:NADP+ oxidoreductase (CoA-acylating)Comments: The enzyme is inactivated by EC 2.7.11.31 [hydroxymethylglutaryl-CoA reductase (NADPH)] kinase

and reactivated by EC 3.1.3.47 [hydroxymethylglutaryl-CoA reductase (NADPH)]-phosphatase.References: [439, 893, 1856]

[EC 1.1.1.34 created 1961]

EC 1.1.1.35Accepted name: 3-hydroxyacyl-CoA dehydrogenase

Reaction: (S)-3-hydroxyacyl-CoA + NAD+ = 3-oxoacyl-CoA + NADH + H+Other name(s): β-hydroxyacyl dehydrogenase; β-keto-reductase; 3-keto reductase; 3-hydroxyacyl coenzyme A de-

hydrogenase; β-hydroxyacyl-coenzyme A synthetase; β-hydroxyacylcoenzyme A dehydrogenase;β-hydroxybutyrylcoenzyme A dehydrogenase; 3-hydroxyacetyl-coenzyme A dehydrogenase; L-3-hydroxyacyl coenzyme A dehydrogenase; L-3-hydroxyacyl CoA dehydrogenase; β-hydroxyacyl CoAdehydrogenase; 3β-hydroxyacyl coenzyme A dehydrogenase; 3-hydroxybutyryl-CoA dehydrogenase;β-ketoacyl-CoA reductase; β-hydroxy acid dehydrogenase; 3-L-hydroxyacyl-CoA dehydrogenase;3-hydroxyisobutyryl-CoA dehydrogenase; 1-specific DPN-linked β-hydroxybutyric dehydrogenase

Systematic name: (S)-3-hydroxyacyl-CoA:NAD+ oxidoreductaseComments: Also oxidizes S-3-hydroxyacyl-N-acylthioethanolamine and S-3-hydroxyacyl-hydrolipoate. Some en-

zymes act, more slowly, with NADP+. Broad specificity to acyl chain-length (cf. EC 1.1.1.211 [long-chain-3-hydroxyacyl-CoA dehydrogenase]).

References: [1504, 2188, 3641, 4083]

[EC 1.1.1.35 created 1961]

EC 1.1.1.36Accepted name: acetoacetyl-CoA reductase

Reaction: (R)-3-hydroxyacyl-CoA + NADP+ = 3-oxoacyl-CoA + NADPH + H+Other name(s): acetoacetyl coenzyme A reductase; hydroxyacyl coenzyme-A dehydrogenase; NADP-linked ace-

toacetyl CoA reductase; NADPH:acetoacetyl-CoA reductase; D(–)-β-hydroxybutyryl CoA-NADPoxidoreductase; short chain β-ketoacetyl(acetoacetyl)-CoA reductase; β-ketoacyl-CoA reductase; D-3-hydroxyacyl-CoA reductase; (R)-3-hydroxyacyl-CoA dehydrogenase

Systematic name: (R)-3-hydroxyacyl-CoA:NADP+ oxidoreductaseReferences: [4082]

[EC 1.1.1.36 created 1961]

EC 1.1.1.37

12


Accepted name: malate dehydrogenaseReaction: (S)-malate + NAD+ = oxaloacetate + NADH + H+

Other name(s): malic dehydrogenase; L-malate dehydrogenase; NAD-L-malate dehydrogenase; malic acid dehydro-genase; NAD-dependent malic dehydrogenase; NAD-malate dehydrogenase; NAD-malic dehydro-genase; malate (NAD) dehydrogenase; NAD-dependent malate dehydrogenase; NAD-specific malatedehydrogenase; NAD-linked malate dehydrogenase; MDH; L-malate-NAD+ oxidoreductase

Systematic name: (S)-malate:NAD+ oxidoreductaseComments: Also oxidizes some other 2-hydroxydicarboxylic acids.References: [188, 1309, 2492, 4239]

[EC 1.1.1.37 created 1961]

EC 1.1.1.38Accepted name: malate dehydrogenase (oxaloacetate-decarboxylating)

Reaction: (1) (S)-malate + NAD+ = pyruvate + CO2 + NADH(2) oxaloacetate = pyruvate + CO2

Other name(s): ‘malic’ enzyme (ambiguous); pyruvic-malic carboxylase (ambiguous); NAD+-specific malic enzyme;NAD+-malic enzyme; NAD+-linked malic enzyme

Systematic name: (S)-malate:NAD+ oxidoreductase (oxaloacetate-decarboxylating)Comments: Unlike EC 1.1.1.39, malate dehydrogenase (decarboxylating), this enzyme can also decarboxylate

oxaloacetate. cf. EC 1.1.1.40, malate dehydrogenase (oxaloacetate-decarboxylating) (NADP+).References: [1853, 4305]

[EC 1.1.1.38 created 1961]

EC 1.1.1.39Accepted name: malate dehydrogenase (decarboxylating)

Reaction: (S)-malate + NAD+ = pyruvate + CO2 + NADHOther name(s): ‘malic’ enzyme (ambiguous); pyruvic-malic carboxylase (ambiguous); NAD-specific malic enzyme

(ambiguous); NAD-malic enzyme (ambiguous); malate dehydrogenase (decarboxylating) (ambigu-ous)

Systematic name: (S)-malate:NAD+ oxidoreductase (decarboxylating)Comments: There are several forms of malate dehydrogenases that differ in their use of substrates and cofactors.

This particular form is found only in the plant kingdom. Unlike EC 1.1.1.38, which catalyses a sim-ilar reaction, this enzyme can not bind oxaloacetate, and thus does not decarboxylate exogeneously-added oxaloacetate. cf. EC 1.1.1.37, malate dehydrogenase; EC 1.1.1.38, malate dehydrogenase(oxaloacetate-decarboxylating); and EC 1.1.1.83, D-malate dehydrogenase (decarboxylating).

References: [2350, 1304, 4156, 4155]

[EC 1.1.1.39 created 1961]

EC 1.1.1.40Accepted name: malate dehydrogenase (oxaloacetate-decarboxylating) (NADP+)

Reaction: (1) (S)-malate + NADP+ = pyruvate + CO2 + NADPH(2) oxaloacetate = pyruvate + CO2

Other name(s): ‘malic’ enzyme (ambiguous); pyruvic-malic carboxylase (ambiguous); malate dehydrogenase (de-carboxylating, NADP+); NADP+-linked decarboxylating malic enzyme; NADP+-malic enzyme;NADP+-specific malic enzyme; NADP+-specific malate dehydrogenase; malate dehydrogenase(NADP+, decarboxylating); L-malate:NADP+ oxidoreductase

Systematic name: (S)-malate:NADP+ oxidoreductase (oxaloacetate-decarboxylating)Comments: The enzyme catalyses the oxidative decarboxylation of (S)-malate in the presence of NADP+ and di-

valent metal ions, and the decarboxylation of oxaloacetate. cf. EC 1.1.1.38, malate dehydrogenase(oxaloacetate-decarboxylating), and EC 1.1.1.39, malate dehydrogenase (decarboxylating).

References: [1392, 2839, 3265, 3645, 3646, 4086]

13

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EC 1.1.1.41Accepted name: isocitrate dehydrogenase (NAD+)

Reaction: isocitrate + NAD+ = 2-oxoglutarate + CO2 + NADHOther name(s): isocitric dehydrogenase; β-ketoglutaric-isocitric carboxylase; isocitric acid dehydrogenase; NAD de-

pendent isocitrate dehydrogenase; NAD isocitrate dehydrogenase; NAD-linked isocitrate dehydroge-nase; NAD-specific isocitrate dehydrogenase; NAD isocitric dehydrogenase; isocitrate dehydrogenase(NAD); IDH (ambiguous); nicotinamide adenine dinucleotide isocitrate dehydrogenase

Systematic name: isocitrate:NAD+ oxidoreductase (decarboxylating)Comments: Requires Mn2+ or Mg2+ for activity. Unlike EC 1.1.1.42, isocitrate dehydrogenase (NADP+), oxalo-

succinate cannot be used as a substrate. In eukaryotes, isocitrate dehydrogenase exists in two forms:an NAD+-linked enzyme found only in mitochondria and displaying allosteric properties, and a non-allosteric, NADP+-linked enzyme that is found in both mitochondria and cytoplasm [481]. The en-zyme from some species can also use NADP+ but much more slowly [1651].

References: [1421, 2035, 3021, 3022, 3116, 4040, 481, 1926, 1651]


EC 1.1.1.42Accepted name: isocitrate dehydrogenase (NADP+)

Reaction: isocitrate + NADP+ = 2-oxoglutarate + CO2 + NADPH + H+ (overall reaction)(1a) isocitrate + NADP+ = oxalosuccinate + NADPH + H+

(1b) oxalosuccinate = 2-oxoglutarate + CO2Other name(s): oxalosuccinate decarboxylase; oxalsuccinic decarboxylase; isocitrate (NADP) dehydrogenase; isoc-

itrate (nicotinamide adenine dinucleotide phosphate) dehydrogenase; NADP-specific isocitrate de-hydrogenase; NADP-linked isocitrate dehydrogenase; NADP-dependent isocitrate dehydrogenase;NADP isocitric dehydrogenase; isocitrate dehydrogenase (NADP-dependent); NADP-dependent isoc-itric dehydrogenase; triphosphopyridine nucleotide-linked isocitrate dehydrogenase-oxalosuccinatecarboxylase; NADP+-linked isocitrate dehydrogenase; IDH (ambiguous); dual-cofactor-specific isoci-trate dehydrogenase; NADP+-ICDH; NADP+-IDH; IDP; IDP1; IDP2; IDP3

Systematic name: isocitrate:NADP+ oxidoreductase (decarboxylating)Comments: Requires Mn2+ or Mg2+ for activity. Unlike EC 1.1.1.41, isocitrate dehydrogenase (NAD+), oxalo-

succinate can be used as a substrate. In eukaryotes, isocitrate dehydrogenase exists in two forms: anNAD+-linked enzyme found only in mitochondria and displaying allosteric properties, and a non-allosteric, NADP+-linked enzyme that is found in both mitochondria and cytoplasm [481]. The en-zyme from some species can also use NAD+ but much more slowly [481, 3627].

References: [34, 2643, 3021, 3527, 4040, 481, 3627, 2001, 527]


EC 1.1.1.43Accepted name: phosphogluconate 2-dehydrogenase

Reaction: 6-phospho-D-gluconate + NAD(P)+ = 6-phospho-2-dehydro-D-gluconate + NAD(P)H + H+Other name(s): 6-phosphogluconic dehydrogenase; phosphogluconate dehydrogenase; gluconate 6-phosphate dehy-

drogenase; 6-phosphogluconate dehydrogenase (NAD); 2-keto-6-phosphogluconate reductaseSystematic name: 6-phospho-D-gluconate:NAD(P)+ 2-oxidoreductase

References: [1049]

[EC 1.1.1.43 created 1961]

EC 1.1.1.44Accepted name: phosphogluconate dehydrogenase (NADP+-dependent, decarboxylating)

14


Reaction: 6-phospho-D-gluconate + NADP+ = D-ribulose 5-phosphate + CO2 + NADPH + H+Other name(s): phosphogluconic acid dehydrogenase; 6-phosphogluconic dehydrogenase; 6-phosphogluconic car-

boxylase; 6-phosphogluconate dehydrogenase (decarboxylating); 6-phospho-D-gluconate dehydroge-nase

Systematic name: 6-phospho-D-gluconate:NADP+ 2-oxidoreductase (decarboxylating)Comments: The enzyme participates in the oxidative branch of the pentose phosphate pathway, whose main pur-

pose is to produce NADPH and pentose for biosynthetic reactions. Highly specific for NADP+. cf.EC 1.1.1.343, phosphogluconate dehydrogenase (NAD+-dependent, decarboxylating).

References: [816, 3038, 3416, 3417, 400, 4371, 4423]


EC 1.1.1.45Accepted name: L-gulonate 3-dehydrogenase

Reaction: L-gulonate + NAD+ = 3-dehydro-L-gulonate + NADH + H+Other name(s): L-3-aldonate dehydrogenase; L-3-aldonic dehydrogenase; L-gulonic acid dehydrogenase; L-β-

hydroxyacid dehydrogenase; L-β-hydroxy-acid-NAD-oxidoreductase; L-3-hydroxyacid dehydroge-nase

Systematic name: L-gulonate:NAD+ 3-oxidoreductaseComments: Also oxidizes other L-3-hydroxyacids.References: [896, 3555]

[EC 1.1.1.45 created 1961]

EC 1.1.1.46Accepted name: L-arabinose 1-dehydrogenase

Reaction: L-arabinose + NAD+ = L-arabinono-1,4-lactone + NADH + H+Systematic name: L-arabinose:NAD+ 1-oxidoreductase

References: [4164]

[EC 1.1.1.46 created 1961]

EC 1.1.1.47Accepted name: glucose 1-dehydrogenase [NAD(P)+]

Reaction: D-glucose + NAD(P)+ = D-glucono-1,5-lactone + NAD(P)H + H+Other name(s): D-glucose dehydrogenase (NAD(P)+); hexose phosphate dehydrogenase; β-D-glucose:NAD(P)+ 1-

oxidoreductase; glucose 1-dehydrogenaseSystematic name: D-glucose:NAD(P)+ 1-oxidoreductase

Comments: This enzyme has similar activity with either NAD+ or NADP+. cf. EC 1.1.1.118, glucose 1-dehydrogenase (NAD+) and EC 1.1.1.119, glucose 1-dehydrogenase (NADP+).

References: [189, 401, 2966, 3675, 3877, 1101]


EC 1.1.1.48Accepted name: D-galactose 1-dehydrogenase

Reaction: D-galactose + NAD+ = D-galactono-1,4-lactone + NADH + H+Other name(s): D-galactose dehydrogenase; β-galactose dehydrogenase (ambiguous); NAD+-dependent D-galactose

dehydrogenaseSystematic name: D-galactose:NAD+ 1-oxidoreductase

Comments: This enzyme is part of the De Ley-Doudoroff pathway, which is used by some bacteria during growthon D-galactose.


15



EC 1.1.1.49Accepted name: glucose-6-phosphate dehydrogenase (NADP+)

Reaction: D-glucose 6-phosphate + NADP+ = 6-phospho-D-glucono-1,5-lactone + NADPH + H+Other name(s): NADP-glucose-6-phosphate dehydrogenase; Zwischenferment; D-glucose 6-phosphate dehydroge-

nase; glucose 6-phosphate dehydrogenase (NADP); NADP-dependent glucose 6-phosphate dehy-drogenase; 6-phosphoglucose dehydrogenase; Entner-Doudoroff enzyme; glucose-6-phosphate 1-dehydrogenase; G6PDH; GPD; glucose-6-phosphate dehydrogenase

Systematic name: D-glucose-6-phosphate:NADP+ 1-oxidoreductaseComments: The enzyme catalyses a step of the pentose phosphate pathway. The enzyme is specific for NADP+.

cf. EC 1.1.1.363, glucose-6-phosphate dehydrogenase [NAD(P)+] and EC 1.1.1.388, glucose-6-phosphate dehydrogenase (NAD+).

References: [949, 1219, 1783, 2812, 2528, 2870, 1375, 1624, 1697, 606]


EC 1.1.1.50Accepted name: 3α-hydroxysteroid 3-dehydrogenase (Si-specific)

Reaction: a 3α-hydroxysteroid + NAD(P)+ = a 3-oxosteroid + NAD(P)H + H+Other name(s): hydroxyprostaglandin dehydrogenase; 3α-hydroxysteroid oxidoreductase; sterognost 3α; 3α-

hydroxysteroid dehydrogenase (B-specific); 3α-hydroxysteroid 3-dehydrogenase (B-specific); 3α-hydroxysteroid:NAD(P)+ 3-oxidoreductase (B-specific)

Systematic name: 3α-hydroxysteroid:NAD(P)+ 3-oxidoreductase (Si-specific)Comments: The enzyme acts on androsterone and other 3α-hydroxysteroids and on 9-, 11- and 15-

hydroxyprostaglandin. Si-specific with respect to NAD+ or NADP+. cf. EC 1.1.1.213, 3α-hydroxysteroid 3-dehydrogenase (Re-specific).

References: [1724, 1986, 2395, 2979]

[EC 1.1.1.50 created 1961, modified 1986, modified 1990, modified 2012, modified 2013]

EC 1.1.1.51Accepted name: 3(or 17)β-hydroxysteroid dehydrogenase

Reaction: testosterone + NAD(P)+ = androstenedione + NAD(P)H + H+Other name(s): β-hydroxy steroid dehydrogenase; 17-ketoreductase; 17β-hydroxy steroid dehydrogenase; 3β-

hydroxysteroid dehydrogenase; 3β-hydroxy steroid dehydrogenaseSystematic name: 3(or 17)β-hydroxysteroid:NAD(P)+ oxidoreductase

Comments: Also acts on other 3β- or 17β-hydroxysteroids. cf. EC 1.1.1.209 3(or 17)α-hydroxysteroid dehydroge-nase.

References: [720, 2326, 2395, 3400, 3798]

[EC 1.1.1.51 created 1961]

EC 1.1.1.52Accepted name: 3α-hydroxycholanate dehydrogenase (NAD+)

Reaction: lithocholate + NAD+ = 3-oxo-5β-cholan-24-oate + NADH + H+Other name(s): α-hydroxy-cholanate dehydrogenase; lithocholate:NAD+ oxidoreductase; 3α-hydroxycholanate dehy-

drogenaseSystematic name: lithocholate:NAD+ 3-oxidoreductase

Comments: Also acts on other 3α-hydroxysteroids with an acidic side-chain. cf. EC 1.1.1.392, 3α-hydroxycholanate dehydrogenase (NADP+).

References: [1434]

16



EC 1.1.1.53Accepted name: 3α(or 20β)-hydroxysteroid dehydrogenase

Reaction: androstan-3α,17β-diol + NAD+ = 17β-hydroxyandrostan-3-one + NADH + H+Other name(s): cortisone reductase; (R)-20-hydroxysteroid dehydrogenase; dehydrogenase, 20β-hydroxy steroid;

∆4-3-ketosteroid hydrogenase; 20β-hydroxysteroid dehydrogenase; 3α,20β-hydroxysteroid:NAD+-oxidoreductase; NADH-20β-hydroxysteroid dehydrogenase; 20β-HSD

Systematic name: 3α(or 20β)-hydroxysteroid:NAD+ oxidoreductaseComments: The 3α-hydroxy group or 20β-hydroxy group of pregnane and androstane steroids can act as donor.References: [923, 1600, 1601, 2326, 3679, 3762]


EC 1.1.1.54Accepted name: allyl-alcohol dehydrogenase

Reaction: allyl alcohol + NADP+ = acrolein + NADPH + H+Systematic name: allyl-alcohol:NADP+ oxidoreductase

Comments: Also acts on saturated primary alcohols.References: [2910]

[EC 1.1.1.54 created 1965]

EC 1.1.1.55Accepted name: lactaldehyde reductase (NADPH)

Reaction: propane-1,2-diol + NADP+ = L-lactaldehyde + NADPH + H+Other name(s): lactaldehyde (reduced nicotinamide adenine dinucleotide phosphate) reductase; NADP-1,2-

propanediol dehydrogenase; propanediol dehydrogenase; 1,2-propanediol:NADP+ oxidoreductase;lactaldehyde reductase (NADPH2)

Systematic name: propane-1,2-diol:NADP+ oxidoreductaseComments: May be identical with EC 1.1.1.2 alcohol dehydrogenase (NADP+).References: [1319]

[EC 1.1.1.55 created 1965]

EC 1.1.1.56Accepted name: ribitol 2-dehydrogenase

Reaction: ribitol + NAD+ = D-ribulose + NADH + H+Other name(s): adonitol dehydrogenase; ribitol dehydrogenase A (wild type); ribitol dehydrogenase B (mutant en-

zyme with different properties); ribitol dehydrogenase D (mutant enzyme with different properties)Systematic name: ribitol:NAD+ 2-oxidoreductase

References: [1544, 2817, 4250]

[EC 1.1.1.56 created 1965]

EC 1.1.1.57Accepted name: fructuronate reductase

Reaction: D-mannonate + NAD+ = D-fructuronate + NADH + H+Other name(s): mannonate oxidoreductase; mannonic dehydrogenase; D-mannonate dehydrogenase; D-

mannonate:NAD oxidoreductaseSystematic name: D-mannonate:NAD+ 5-oxidoreductase

Comments: Also reduces D-tagaturonate.References: [1490, 1905]

17


[EC 1.1.1.57 created 1965]

EC 1.1.1.58Accepted name: tagaturonate reductase

Reaction: D-altronate + NAD+ = D-tagaturonate + NADH + H+Other name(s): altronic oxidoreductase; altronate oxidoreductase; TagUAR; altronate dehydrogenase; D-tagaturonate

reductaseSystematic name: D-altronate:NAD+ 3-oxidoreductase

References: [1490]

[EC 1.1.1.58 created 1965]

EC 1.1.1.59Accepted name: 3-hydroxypropionate dehydrogenase

Reaction: 3-hydroxypropanoate + NAD+ = 3-oxopropanoate + NADH + H+Systematic name: 3-hydroxypropanoate:NAD+ oxidoreductase

References: [792]

[EC 1.1.1.59 created 1965]

EC 1.1.1.60Accepted name: 2-hydroxy-3-oxopropionate reductase

Reaction: D-glycerate + NAD(P)+ = 2-hydroxy-3-oxopropanoate + NAD(P)H + H+Other name(s): tartronate semialdehyde reductase; (R)-glycerate:NAD(P)+ oxidoreductase

Systematic name: D-glycerate:NAD(P)+ oxidoreductaseReferences: [1249]

[EC 1.1.1.60 created 1965]

EC 1.1.1.61Accepted name: 4-hydroxybutyrate dehydrogenase

Reaction: 4-hydroxybutanoate + NAD+ = succinate semialdehyde + NADH + H+Other name(s): γ-hydroxybutyrate dehydrogenase

Systematic name: 4-hydroxybutanoate:NAD+ oxidoreductaseReferences: [2790]

[EC 1.1.1.61 created 1965]

EC 1.1.1.62Accepted name: 17β-estradiol 17-dehydrogenase

Reaction: 17β-estradiol + NAD(P)+ = estrone + NAD(P)H + H+Other name(s): 20α-hydroxysteroid dehydrogenase; 17β,20α-hydroxysteroid dehydrogenase; 17β-estradiol dehydro-

genase; estradiol dehydrogenase; estrogen 17-oxidoreductase; 17β-HSD; HSD17B7Systematic name: 17β-estradiol:NAD(P)+ 17-oxidoreductase

Comments: The enzyme oxidizes or reduces the hydroxy/keto group on C17 of estrogens and androgens in mam-mals and regulates the biological potency of these steroids. The mammalian enzyme is bifunctionaland also catalyses EC 1.1.1.270, 3β-hydroxysteroid 3-dehydrogenase [2398]. The enzyme also actson (S)-20-hydroxypregn-4-en-3-one and related compounds, oxidizing the (S)-20-group, but unlikeEC 1.1.1.149, 20α-hydroxysteroid dehydrogenase, it is Si-specific with respect to NAD(P)+.

References: [1855, 2133, 2398]

[EC 1.1.1.62 created 1965, modified 1983, modified 1986, modified 2012]

18


[1.1.1.63 Transferred entry. testosterone 17β-dehydrogenase. Now EC 1.1.1.239, 3α(17β)-hydroxysteroid dehydrogenase(NAD+)]

[EC 1.1.1.63 created 1965, deleted 2012]

EC 1.1.1.64Accepted name: testosterone 17β-dehydrogenase (NADP+)

Reaction: testosterone + NADP+ = androstenedione + NADPH + H+Other name(s): 17-ketoreductase; NADP-dependent testosterone-17β-oxidoreductase; testosterone 17β-

dehydrogenase (NADP)Systematic name: 17β-hydroxysteroid:NADP+ 17-oxidoreductase

Comments: Also oxidizes 3-hydroxyhexobarbital to 3-oxohexobarbital.References: [946, 3761, 4046]

[EC 1.1.1.64 created 1965]

EC 1.1.1.65Accepted name: pyridoxine 4-dehydrogenase

Reaction: pyridoxine + NADP+ = pyridoxal + NADPH + H+Other name(s): pyridoxin dehydrogenase; pyridoxol dehydrogenase; pyridoxine dehydrogenase

Systematic name: pyridoxine:NADP+ 4-oxidoreductaseComments: Also oxidizes pyridoxine phosphate.References: [1552]


EC 1.1.1.66Accepted name: ω-hydroxydecanoate dehydrogenase

Reaction: 10-hydroxydecanoate + NAD+ = 10-oxodecanoate + NADH + H+Systematic name: 10-hydroxydecanoate:NAD+ 10-oxidoreductase

Comments: Also acts, more slowly, on 9-hydroxynonanoate and 11-hydroxyundecanoate.References: [1803, 2569]

[EC 1.1.1.66 created 1965]

EC 1.1.1.67Accepted name: mannitol 2-dehydrogenase

Reaction: D-mannitol + NAD+ = D-fructose + NADH + H+Other name(s): D-mannitol dehydrogenase; mannitol dehydrogenase

Systematic name: D-mannitol:NAD+ 2-oxidoreductaseReferences: [2417]

[EC 1.1.1.67 created 1965]

[1.1.1.68 Transferred entry. 5,10-methylenetetrahydrofolate reductase. Now EC 1.5.1.20, methylenetetrahydrofolate reduc-tase [NAD(P)H]]

[EC 1.1.1.68 created 1965, deleted 1978 [transferred to EC 1.1.99.15, deleted 1980]]

EC 1.1.1.69Accepted name: gluconate 5-dehydrogenase

Reaction: D-gluconate + NAD(P)+ = 5-dehydro-D-gluconate + NAD(P)H + H+Other name(s): 5-keto-D-gluconate 5-reductase; 5-keto-D-gluconate 5-reductase; 5-ketogluconate 5-reductase; 5-

ketogluconate reductase; 5-keto-D-gluconate reductase

19


Systematic name: D-gluconate:NAD(P)+ 5-oxidoreductaseReferences: [69, 2219, 2862]


[1.1.1.70 Deleted entry. D-glucuronolactone dehydrogenase. Now included with EC 1.2.1.3 aldehyde dehydrogenase (NAD+)]


EC 1.1.1.71Accepted name: alcohol dehydrogenase [NAD(P)+]

Reaction: an alcohol + NAD(P)+ = an aldehyde + NAD(P)H + H+Other name(s): retinal reductase (ambiguous); aldehyde reductase (NADPH/NADH); alcohol dehydrogenase

[NAD(P)]Systematic name: alcohol:NAD(P)+ oxidoreductase

Comments: Reduces aliphatic aldehydes of carbon chain length from 2 to 14, with greatest activity on C4, C6 andC8 aldehydes; also reduces retinal to retinol.

References: [1009]

[EC 1.1.1.71 created 1972]

EC 1.1.1.72Accepted name: glycerol dehydrogenase (NADP+)

Reaction: glycerol + NADP+ = D-glyceraldehyde + NADPH + H+Other name(s): glycerol dehydrogenase (NADP)

Systematic name: glycerol:NADP+ oxidoreductaseReferences: [2034, 3900]

[EC 1.1.1.72 created 1972]

EC 1.1.1.73Accepted name: octanol dehydrogenase

Reaction: octan-1-ol + NAD+ = octanal + NADH + H+Other name(s): 1-octanol dehydrogenase; octanol:NAD+ oxidoreductase

Systematic name: octan-1-ol:NAD+ oxidoreductaseComments: Acts, less rapidly, on other long-chain alcohols.References: [3206]

[EC 1.1.1.73 created 1972]

[1.1.1.74 Deleted entry. D-aminopropanol dehydrogenase (reaction due to EC 1.1.1.4 (R,R)-butanediol dehydrogenase)]


EC 1.1.1.75Accepted name: (R)-aminopropanol dehydrogenase

Reaction: (R)-1-aminopropan-2-ol + NAD+ = aminoacetone + NADH + H+Other name(s): L-aminopropanol dehydrogenase; 1-aminopropan-2-ol-NAD+ dehydrogenase; L(+)-1-aminopropan-

2-ol:NAD+ oxidoreductase; 1-aminopropan-2-ol-dehydrogenase; DL-1-aminopropan-2-ol: NAD+

dehydrogenase; L(+)-1-aminopropan-2-ol-NAD/NADP oxidoreductaseSystematic name: (R)-1-aminopropan-2-ol:NAD+ oxidoreductase

Comments: Requires K+.References: [781, 3950, 3951]

20


[EC 1.1.1.75 created 1972]

EC 1.1.1.76Accepted name: (S,S)-butanediol dehydrogenase

Reaction: (2S,3S)-butane-2,3-diol + NAD+ = (S)-acetoin + NADH + H+Other name(s): L-butanediol dehydrogenase; L-BDH; L(+)-2,3-butanediol dehydrogenase (L-acetoin forming); (S)-

acetoin reductase [(S,S)-butane-2,3-diol forming]Systematic name: (S,S)-butane-2,3-diol:NAD+ oxidoreductase

Comments: This enzyme catalyses the reversible reduction of (S)-acetoin to (S,S)-butane-2,3-diol. It can alsocatalyse the irreversible reduction of diacetyl to (S)-acetoin.

References: [3834, 501, 3797]


EC 1.1.1.77Accepted name: lactaldehyde reductase

Reaction: (R)[or (S)]-propane-1,2-diol + NAD+ = (R)[or (S)]-lactaldehyde + NADH + H+Other name(s): propanediol:nicotinamide adenine dinucleotide (NAD) oxidoreductase; L-lactaldehyde:propanediol

oxidoreductaseSystematic name: (R)[or (S)]-propane-1,2-diol:NAD+ oxidoreductase

References: [3893]

[EC 1.1.1.77 created 1972]

EC 1.1.1.78Accepted name: methylglyoxal reductase (NADH)

Reaction: (R)-lactaldehyde + NAD+ = 2-oxopropanal + NADH + H+Other name(s): methylglyoxal reductase; D-lactaldehyde dehydrogenase; methylglyoxal reductase (NADH-

dependent)Systematic name: (R)-lactaldehyde:NAD+ oxidoreductase

Comments: This mammalian enzyme differs from the yeast enzyme, EC 1.1.1.283, methylglyoxal reductase(NADPH-dependent), by its coenzyme requirement, reaction direction, and enantiomeric preference.



EC 1.1.1.79Accepted name: glyoxylate reductase (NADP+)

Reaction: glycolate + NADP+ = glyoxylate + NADPH + H+Other name(s): NADPH-glyoxylate reductase; glyoxylate reductase (NADP)

Systematic name: glycolate:NADP+ oxidoreductaseComments: Also reduces hydroxypyruvate to glycerate; has some affinity for NAD+.References: [514, 1962]

[EC 1.1.1.79 created 1972]

EC 1.1.1.80Accepted name: isopropanol dehydrogenase (NADP+)

Reaction: propan-2-ol + NADP+ = acetone + NADPH + H+Other name(s): isopropanol dehydrogenase (NADP)

Systematic name: propan-2-ol:NADP+ oxidoreductaseComments: Also acts on other short-chain secondary alcohols and, slowly, on primary alcohols.References: [1577, 1578]

21


[EC 1.1.1.80 created 1972]

EC 1.1.1.81Accepted name: hydroxypyruvate reductase

Reaction: D-glycerate + NAD(P)+ = hydroxypyruvate + NAD(P)H + H+Other name(s): β-hydroxypyruvate reductase; NADH:hydroxypyruvate reductase; D-glycerate dehydrogenase

Systematic name: D-glycerate:NADP+ 2-oxidoreductaseReferences: [1960, 1961, 2006]

[EC 1.1.1.81 created 1972]

EC 1.1.1.82Accepted name: malate dehydrogenase (NADP+)

Reaction: (S)-malate + NADP+ = oxaloacetate + NADPH + H+Other name(s): NADP-malic enzyme; NADP-malate dehydrogenase; malic dehydrogenase (nicotinamide adenine

dinucleotide phosphate); malate NADP dehydrogenase; NADP malate dehydrogenase; NADP-linkedmalate dehydrogenase; malate dehydrogenase (NADP)

Systematic name: (S)-malate:NADP+ oxidoreductaseComments: Activated by light.References: [649, 1758, 1759]

[EC 1.1.1.82 created 1972]

EC 1.1.1.83Accepted name: D-malate dehydrogenase (decarboxylating)

Reaction: (R)-malate + NAD+ = pyruvate + CO2 + NADHOther name(s): D-malate dehydrogenase; D-malic enzyme; bifunctional L(+)-tartrate dehydrogenase-D(+)-malate (de-

carboxylating)Systematic name: (R)-malate:NAD+ oxidoreductase (decarboxylating)

References: [3642]

[EC 1.1.1.83 created 1972]

EC 1.1.1.84Accepted name: dimethylmalate dehydrogenase

Reaction: (R)-3,3-dimethylmalate + NAD+ = 3-methyl-2-oxobutanoate + CO2 + NADHOther name(s): β,β-dimethylmalate dehydrogenase

Systematic name: (R)-3,3-dimethylmalate:NAD+ oxidoreductase (decarboxylating)Comments: Requires K+ or NH4+ and Mn2+ or Co2+; also acts on (R)-malate.References: [2360]

[EC 1.1.1.84 created 1972]

EC 1.1.1.85Accepted name: 3-isopropylmalate dehydrogenase

Reaction: (2R,3S)-3-isopropylmalate + NAD+ = 4-methyl-2-oxopentanoate + CO2 + NADH + H+ (overall reac-tion)(1a) (2R,3S)-3-isopropylmalate + NAD+ = (2S)-2-isopropyl-3-oxosuccinate + NADH + H+

(1b) (2S)-2-isopropyl-3-oxosuccinate = 4-methyl-2-oxopentanoate + CO2 (spontaneous)Other name(s): β-isopropylmalic enzyme; β-isopropylmalate dehydrogenase; threo-Ds-3-isopropylmalate dehydroge-

nase; 3-carboxy-2-hydroxy-4-methylpentanoate:NAD+ oxidoreductaseSystematic name: (2R,3S)-3-isopropylmalate:NAD+ oxidoreductase

22


Comments: The product decarboxylates spontaneously to yield 4-methyl-2-oxopentanoate.References: [451, 2949, 2762, 480]


EC 1.1.1.86Accepted name: ketol-acid reductoisomerase (NADP+)

Reaction: (2R)-2,3-dihydroxy-3-methylbutanoate + NADP+ = (2S)-2-hydroxy-2-methyl-3-oxobutanoate +NADPH + H+

Other name(s): dihydroxyisovalerate dehydrogenase (isomerizing); acetohydroxy acid isomeroreductase; ketol acidreductoisomerase; α-keto-β-hydroxylacyl reductoisomerase; 2-hydroxy-3-keto acid reductoisomerase;acetohydroxy acid reductoisomerase; acetolactate reductoisomerase; dihydroxyisovalerate (isomer-izing) dehydrogenase; isomeroreductase; reductoisomerase; ketol-acid reductoisomerase; (R)-2,3-dihydroxy-3-methylbutanoate:NADP+ oxidoreductase (isomerizing)

Systematic name: (2R)-2,3-dihydroxy-3-methylbutanoate:NADP+ oxidoreductase (isomerizing)Comments: Also catalyses the reduction of 2-ethyl-2-hydroxy-3-oxobutanoate to 2,3-dihydroxy-3-

methylpentanoate. The enzyme, found in many bacteria and archaea, is specific for NADPH (cf.EC 1.1.1.382, ketol-acid reductoisomerase (NAD+) and EC 1.1.1.383, ketol-acid reductoisomerase[NAD(P)+]).

References: [118, 1501, 1938, 3324, 403]

[EC 1.1.1.86 created 1972, modified 1976, modified 1981 (EC 1.1.1.89 created 1972, incorporated 1976), modified 2015]

EC 1.1.1.87Accepted name: homoisocitrate dehydrogenase

Reaction: (1R,2S)-1-hydroxybutane-1,2,4-tricarboxylate + NAD+ = 2-oxoadipate + CO2 + NADH + H+Other name(s): 2-hydroxy-3-carboxyadipate dehydrogenase; 3-carboxy-2-hydroxyadipate dehydrogenase; homoisoc-

itric dehydrogenase; (-)-1-hydroxy-1,2,4-butanetricarboxylate:NAD+ oxidoreductase (decarboxylat-ing); 3-carboxy-2-hydroxyadipate:NAD+ oxidoreductase (decarboxylating); HICDH

Systematic name: (1R,2S)-1-hydroxybutane-1,2,4-tricarboxylate:NAD+ oxidoreductase (decarboxylating)Comments: Forms part of the lysine biosynthesis pathway in fungi [4418].References: [3669, 3243, 4418]


EC 1.1.1.88Accepted name: hydroxymethylglutaryl-CoA reductase

Reaction: (R)-mevalonate + CoA + 2 NAD+ = 3-hydroxy-3-methylglutaryl-CoA + 2 NADH + 2 H+Other name(s): β-hydroxy-β-methylglutaryl coenzyme A reductase; β-hydroxy-β-methylglutaryl CoA-reductase; 3-

hydroxy-3-methylglutaryl coenzyme A reductase; hydroxymethylglutaryl coenzyme A reductaseSystematic name: (R)-mevalonate:NAD+ oxidoreductase (CoA-acylating)

References: [1017]


[1.1.1.89 Deleted entry. dihydroxyisovalerate dehydrogenase (isomerizing). Now included with EC 1.1.1.86 ketol-acid re-ductoisomerase]


EC 1.1.1.90Accepted name: aryl-alcohol dehydrogenase

Reaction: an aromatic alcohol + NAD+ = an aromatic aldehyde + NADH + H+

23


Other name(s): p-hydroxybenzyl alcohol dehydrogenase; benzyl alcohol dehydrogenase; coniferyl alcohol dehydro-genase

Systematic name: aryl-alcohol:NAD+ oxidoreductaseComments: A group of enzymes with broad specificity towards primary alcohols with an aromatic or cyclohex-1-

ene ring, but with low or no activity towards short-chain aliphatic alcohols.References: [3720, 4321]


EC 1.1.1.91Accepted name: aryl-alcohol dehydrogenase (NADP+)

Reaction: an aromatic alcohol + NADP+ = an aromatic aldehyde + NADPH + H+Other name(s): aryl alcohol dehydrogenase (nicotinamide adenine dinucleotide phosphate); coniferyl alcohol dehy-

drogenase; NADPH-linked benzaldehyde reductase; aryl-alcohol dehydrogenase (NADP)Systematic name: aryl-alcohol:NADP+ oxidoreductase

Comments: Also acts on some aliphatic aldehydes, but cinnamaldehyde was the best substrate found.References: [1300]

[EC 1.1.1.91 created 1972]

EC 1.1.1.92Accepted name: oxaloglycolate reductase (decarboxylating)

Reaction: D-glycerate + NAD(P)+ + CO2 = 2-hydroxy-3-oxosuccinate + NAD(P)H + 2 H+Systematic name: D-glycerate:NAD(P)+ oxidoreductase (carboxylating)

Comments: Also reduces hydroxypyruvate to D-glycerate and glyoxylate to glycolate.References: [2005]

[EC 1.1.1.92 created 1972]

EC 1.1.1.93Accepted name: tartrate dehydrogenase

Reaction: tartrate + NAD+ = oxaloglycolate + NADH + H+Other name(s): mesotartrate dehydrogenase

Systematic name: tartrate:NAD+ oxidoreductaseComments: meso-tartrate and (R,R)-tartrate act as substrates. Requires Mn2+ and a monovalent cation.References: [2008]

[EC 1.1.1.93 created 1972]

EC 1.1.1.94Accepted name: glycerol-3-phosphate dehydrogenase [NAD(P)+]

Reaction: sn-glycerol 3-phosphate + NAD(P)+ = glycerone phosphate + NAD(P)H + H+Other name(s): L-glycerol-3-phosphate:NAD(P) oxidoreductase; glycerol phosphate dehydrogenase (nicotinamide

adenine dinucleotide (phosphate)); glycerol 3-phosphate dehydrogenase (NADP); glycerol-3-phosphate dehydrogenase [NAD(P)]

Systematic name: sn-glycerol-3-phosphate:NAD(P)+ 2-oxidoreductaseComments: The enzyme from Escherichia coli shows specificity for the B side of NADPH.References: [1950, 917, 918, 919]


EC 1.1.1.95

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Accepted name: phosphoglycerate dehydrogenaseReaction: 3-phospho-D-glycerate + NAD+ = 3-phosphooxypyruvate + NADH + H+

Other name(s): PHGDH (gene name); D-3-phosphoglycerate:NAD+ oxidoreductase; α-phosphoglycerate de-hydrogenase; 3-phosphoglycerate dehydrogenase; 3-phosphoglyceric acid dehydrogenase; D-3-phosphoglycerate dehydrogenase; glycerate 3-phosphate dehydrogenase; glycerate-1,3-phosphatedehydrogenase; phosphoglycerate oxidoreductase; phosphoglyceric acid dehydrogenase; SerA; 3-phosphoglycerate:NAD+ 2-oxidoreductase; SerA 3PG dehydrogenase; 3PHP reductase

Systematic name: 3-phospho-D-glycerate:NAD+ 2-oxidoreductaseComments: This enzyme catalyses the first committed and rate-limiting step in the phosphoserine pathway of ser-

ine biosynthesis. The reaction occurs predominantly in the direction of reduction. The enzyme fromthe bacterium Escherichia coli also catalyses the activity of EC 1.1.1.399, 2-oxoglutarate reductase[4459].

References: [3018, 4098, 3550, 3710, 3397, 4459, 8, 810]


EC 1.1.1.96Accepted name: diiodophenylpyruvate reductase

Reaction: 3-(3,5-diiodo-4-hydroxyphenyl)lactate + NAD+ = 3-(3,5-diiodo-4-hydroxyphenyl)pyruvate + NADH+ H+

Other name(s): aromatic α-keto acid; KAR; 2-oxo acid reductaseSystematic name: 3-(3,5-diiodo-4-hydroxyphenyl)lactate:NAD+ oxidoreductase

Comments: Substrates contain an aromatic ring with a pyruvate side chain. The most active substrates are halo-genated derivatives. Compounds with hydroxy or amino groups in the 3 or 5 position are inactive.

References: [4426]

[EC 1.1.1.96 created 1972]

EC 1.1.1.97Accepted name: 3-hydroxybenzyl-alcohol dehydrogenase

Reaction: 3-hydroxybenzyl alcohol + NADP+ = 3-hydroxybenzaldehyde + NADPH + H+Other name(s): m-hydroxybenzyl alcohol dehydrogenase; m-hydroxybenzyl alcohol (NADP) dehydrogenase; m-

hydroxybenzylalcohol dehydrogenaseSystematic name: 3-hydroxybenzyl-alcohol:NADP+ oxidoreductase

References: [1037]

[EC 1.1.1.97 created 1972]

EC 1.1.1.98Accepted name: (R)-2-hydroxy-fatty-acid dehydrogenase

Reaction: (R)-2-hydroxystearate + NAD+ = 2-oxostearate + NADH + H+Other name(s): D-2-hydroxy fatty acid dehydrogenase; 2-hydroxy fatty acid oxidase

Systematic name: (R)-2-hydroxystearate:NAD+ oxidoreductaseReferences: [2212]

[EC 1.1.1.98 created 1972]

EC 1.1.1.99Accepted name: (S)-2-hydroxy-fatty-acid dehydrogenase

Reaction: (S)-2-hydroxystearate + NAD+ = 2-oxostearate + NADH + H+Other name(s): dehydrogenase, L-2-hydroxy fatty acid; L-2-hydroxy fatty acid dehydrogenase; 2-hydroxy fatty acid

oxidaseSystematic name: (S)-2-hydroxystearate:NAD+ oxidoreductase

References: [2212]

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[EC 1.1.1.99 created 1972]

EC 1.1.1.100Accepted name: 3-oxoacyl-[acyl-carrier-protein] reductase

Reaction: a (3R)-3-hydroxyacyl-[acyl-carrier protein] + NADP+ = a 3-oxoacyl-[acyl-carrier protein] + NADPH+ H+

Other name(s): β-ketoacyl-[acyl-carrier protein](ACP) reductase; β-ketoacyl acyl carrier protein (ACP) reductase; β-ketoacyl reductase; β-ketoacyl thioester reductase; β-ketoacyl-ACP reductase; β-ketoacyl-acyl carrierprotein reductase; 3-ketoacyl acyl carrier protein reductase; NADPH-specific 3-oxoacyl-[acylcarrierprotein]reductase; 3-oxoacyl-[ACP]reductase; (3R)-3-hydroxyacyl-[acyl-carrier-protein]:NADP+ oxi-doreductase

Systematic name: (3R)-3-hydroxyacyl-[acyl-carrier protein]:NADP+ oxidoreductaseComments: Exhibits a marked preference for acyl-carrier-protein derivatives over CoA derivatives as substrates.References: [3058, 3496, 3913]


EC 1.1.1.101Accepted name: acylglycerone-phosphate reductase

Reaction: 1-palmitoylglycerol 3-phosphate + NADP+ = palmitoylglycerone phosphate + NADPH + H+Other name(s): palmitoyldihydroxyacetone-phosphate reductase; palmitoyl dihydroxyacetone phosphate reductase;

palmitoyl-dihydroxyacetone-phosphate reductase; acyldihydroxyacetone phosphate reductase; palmi-toyl dihydroxyacetone phosphate reductase

Systematic name: 1-palmitoylglycerol-3-phosphate:NADP+ oxidoreductaseComments: Also acts on alkylglycerone 3-phosphate and alkylglycerol 3-phosphate.References: [2108]


EC 1.1.1.102Accepted name: 3-dehydrosphinganine reductase

Reaction: sphinganine + NADP+ = 3-dehydrosphinganine + NADPH + H+Other name(s): D-3-dehydrosphinganine reductase; D-3-oxosphinganine reductase; DSR; 3-oxosphinganine reduc-

tase; 3-oxosphinganine:NADPH oxidoreductase; D-3-oxosphinganine:B-NADPH oxidoreductaseSystematic name: D-erythro-dihydrosphingosine:NADP+ 3-oxidoreductase


[EC 1.1.1.102 created 1972]

EC 1.1.1.103Accepted name: L-threonine 3-dehydrogenase

Reaction: L-threonine + NAD+ = L-2-amino-3-oxobutanoate + NADH + H+Other name(s): L-threonine dehydrogenase; threonine 3-dehydrogenase; threonine dehydrogenase; TDH

Systematic name: L-threonine:NAD+ oxidoreductaseComments: This enzyme acts in concert with EC 2.3.1.29, glycine C-acetyltransferase, in the degradation of thre-

onine to glycine. This threonine-degradation pathway is common to prokaryotic and eukaryotic cellsand the two enzymes involved form a complex [1402]. In aqueous solution, the product L-2-amino-3-oxobutanoate can spontaneously decarboxylate to form aminoacetone.

References: [1272, 1402, 2774, 959]

[EC 1.1.1.103 created 1972]

EC 1.1.1.104

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Accepted name: 4-oxoproline reductaseReaction: 4-hydroxy-L-proline + NAD+ = 4-oxoproline + NADH + H+

Other name(s): hydroxy-L-proline oxidaseSystematic name: 4-hydroxy-L-proline:NAD+ oxidoreductase

References: [3566]

[EC 1.1.1.104 created 1972]

EC 1.1.1.105Accepted name: all-trans-retinol dehydrogenase (NAD+)

Reaction: all-trans-retinol—[cellular-retinol-binding-protein] + NAD+ = all-trans-retinal—[cellular-retinol-binding-protein] + NADH + H+

Other name(s): retinol (vitamin A1) dehydrogenase; MDR; microsomal retinol dehydrogenase; retinol dehydrogenase(misleading); retinal reductase (ambiguous); retinene reductase; epidermal retinol dehydrogenase 2;SDR16C5 (gene name); RDH16 (gene name)

Systematic name: all-trans retinol:NAD+ oxidoreductaseComments: The enzyme recognizes all-trans-retinol and all-trans-retinal as substrates and exhibits a strong pref-

erence for NAD+/NADH as cofactors. Recognizes the substrate both in free form and when bound tocellular-retinol-binding-protein (CRBP1), but has higher affinity for the bound form [1252]. No activ-ity with 11-cis-retinol or 11-cis-retinal (cf. EC 1.1.1.315, 11-cis retinol dehydrogenase). Also activewith 3α-hydroxysteroids [1252].

References: [1995, 1252, 2465, 2178]


EC 1.1.1.106Accepted name: pantoate 4-dehydrogenase

Reaction: (R)-pantoate + NAD+ = (R)-4-dehydropantoate + NADH + H+Other name(s): pantoate dehydrogenase; pantothenase; D-pantoate:NAD+ 4-oxidoreductase

Systematic name: (R)-pantoate:NAD+ 4-oxidoreductaseReferences: [1241]


EC 1.1.1.107Accepted name: pyridoxal 4-dehydrogenase

Reaction: pyridoxal + NAD+ = 4-pyridoxolactone + NADH + H+Other name(s): pyridoxal dehydrogenase

Systematic name: pyridoxal:NAD+ 4-oxidoreductaseComments: The enzyme acts on the hemiacetal form of the substrate.References: [445]

[EC 1.1.1.107 created 1972]

EC 1.1.1.108Accepted name: carnitine 3-dehydrogenase

Reaction: carnitine + NAD+ = 3-dehydrocarnitine + NADH + H+Systematic name: carnitine:NAD+ 3-oxidoreductase


[EC 1.1.1.108 created 1972]

[1.1.1.109 Transferred entry. 2,3-dihydro-2,3-dihydroxybenzoate dehydrogenase. Now EC 1.3.1.28, 2,3-dihydro-2,3-dihydroxybenzoate

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dehydrogenase]


EC 1.1.1.110Accepted name: aromatic 2-oxoacid reductase

Reaction: (1) (R)-3-(phenyl)lactate + NAD+ = 3-phenylpyruvate + NADH + H+(2) (R)-3-(4-hydroxyphenyl)lactate + NAD+ = 3-(4-hydroxyphenyl)pyruvate + NADH + H+

(3) (R)-(indol-3-yl)lactate + NAD+ = (indol-3-yl)pyruvate + NADH + H+

Other name(s): (R)-aromatic lactate dehydrogenase; (R)-4-hydroxyphenyllactate dehydrogenase; indolelactate:NAD+oxidoreductase; indolelactate dehydrogenase; fldH (gene name); (indol-3-yl)lactate:NAD+ oxidore-ductase

Systematic name: aromatic 2-oxoacid:NAD+ oxidoreductaseComments: The enzymes from anaerobic bacteria such as Clostridium sporogenes participate in the fermentation

pathways of L-phenylalanine, L-tyrosine and L-tryptophan. The enzyme from the yeast Candida mal-tosa has similar activity, but, unlike the bacterial enzyme, requires Mn2+ and can also use NADPHwith lower activity.

References: [1727, 1202, 327, 819, 847]

[EC 1.1.1.110 created 1972 (EC 1.1.1.222 created 2000, incorporated 2018), modified 2018]

EC 1.1.1.111Accepted name: 3-(imidazol-5-yl)lactate dehydrogenase

Reaction: (S)-3-(imidazol-5-yl)lactate + NAD(P)+ = 3-(imidazol-5-yl)pyruvate + NAD(P)H + H+Other name(s): imidazol-5-yl lactate dehydrogenase

Systematic name: (S)-3-(imidazol-5-yl)lactate:NAD(P)+ oxidoreductaseReferences: [659, 668]

[EC 1.1.1.111 created 1972]

EC 1.1.1.112Accepted name: indanol dehydrogenase

Reaction: indan-1-ol + NAD(P)+ = indanone + NAD(P)H + H+Systematic name: indan-1-ol:NAD(P)+ 1-oxidoreductase

Comments: 3(20)α-Hydroxysteroids are also oxidized, more slowly.References: [298, 1386]

[EC 1.1.1.112 created 1972]

EC 1.1.1.113Accepted name: L-xylose 1-dehydrogenase

Reaction: L-xylose + NADP+ = L-xylono-1,4-lactone + NADPH + H+Other name(s): L-xylose dehydrogenase; NADPH-xylose reductase

Systematic name: L-xylose:NADP+ 1-oxidoreductaseComments: Also oxidizes D-arabinose and D-lyxose.References: [3963]

[EC 1.1.1.113 created 1972]

EC 1.1.1.114Accepted name: apiose 1-reductase

Reaction: D-apiitol + NAD+ = D-apiose + NADH + H+Other name(s): D-apiose reductase; D-apiitol reductase

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Systematic name: D-apiitol:NAD+ 1-oxidoreductaseReferences: [1371, 2750]

[EC 1.1.1.114 created 1972]

EC 1.1.1.115Accepted name: ribose 1-dehydrogenase (NADP+)

Reaction: D-ribose + NADP+ + H2O = D-ribonate + NADPH + H+Other name(s): D-ribose dehydrogenase (NADP+); NADP-pentose-dehydrogenase; ribose 1-dehydrogenase (NADP)

Systematic name: D-ribose:NADP+ 1-oxidoreductaseComments: Also acts, more slowly, on D-xylose and other pentoses.References: [3360, 3367]

[EC 1.1.1.115 created 1972]

EC 1.1.1.116Accepted name: D-arabinose 1-dehydrogenase (NAD+)

Reaction: D-arabinose + NAD+ = D-arabinono-1,4-lactone + NADH + H+Other name(s): NAD+-pentose-dehydrogenase; arabinose(fucose)dehydrogenase

Systematic name: D-arabinose:NAD+ 1-oxidoreductaseReferences: [2926, 3367]

[EC 1.1.1.116 created 1972]

EC 1.1.1.117Accepted name: D-arabinose 1-dehydrogenase [NAD(P)+]

Reaction: D-arabinose + NAD(P)+ = D-arabinono-1,4-lactone + NAD(P)H + H+Other name(s): D-arabinose 1-dehydrogenase [NAD(P)]

Systematic name: D-arabinose:NAD(P)+ 1-oxidoreductaseComments: Also acts on L-galactose, 6-deoxy- and 3,6-dideoxy-L-galactose.References: [637, 635, 636]

[EC 1.1.1.117 created 1972]

EC 1.1.1.118Accepted name: glucose 1-dehydrogenase (NAD+)

Reaction: D-glucose + NAD+ = D-glucono-1,5-lactone + NADH + H+Other name(s): D-glucose:NAD oxidoreductase; D-aldohexose dehydrogenase; glucose 1-dehydrogenase (NAD)

Systematic name: D-glucose:NAD+ 1-oxidoreductaseReferences: [1588]


EC 1.1.1.119Accepted name: glucose 1-dehydrogenase (NADP+)

Reaction: D-glucose + NADP+ = D-glucono-1,5-lactone + NADPH + H+Other name(s): nicotinamide adenine dinucleotide phosphate-linked aldohexose dehydrogenase; NADP-linked aldo-

hexose dehydrogenase; NADP-dependent glucose dehydrogenase; glucose 1-dehydrogenase (NADP)Systematic name: D-glucose:NADP+ 1-oxidoreductase

Comments: Also oxidizes D-mannose, 2-deoxy-D-glucose and 2-amino-2-deoxy-D-mannose.References: [13, 143]

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[EC 1.1.1.119 created 1972]

EC 1.1.1.120Accepted name: galactose 1-dehydrogenase (NADP+)

Reaction: D-galactose + NADP+ = D-galactono-1,5-lactone + NADPH + H+Other name(s): D-galactose dehydrogenase (NADP+); galactose 1-dehydrogenase (NADP)

Systematic name: D-galactose:NADP+ 1-oxidoreductaseComments: Also acts on L-arabinose, 6-deoxy- and 2-deoxy-D-galactose.References: [637, 635, 636, 3366]

[EC 1.1.1.120 create

The Enzyme List Class 1 — Oxidoreductases · The Enzyme List Class 1 — Oxidoreductases...

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