div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentcraik-lab-general-base-catalyst-and-proton-donor-to-the-leaving-group-tyr37-va138htmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Craik Lab · UCSF · general-base catalyst and proton donor to the leaving group Tyr37 va138 30Â 30È Gly39 Tyr248 which indicates that the phenolic hydroxyl of Tyr248 forms hydrogen loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsnetreader033viewer20220424055f1e6880c54b341db351cfd6html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentcraik-lab-general-base-catalyst-and-proton-donor-to-the-leaving-group-tyr37-va138htmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: Craik Lab · UCSF · general-base catalyst and proton donor to the leaving group Tyr37 va138 30Â 30È Gly39 Tyr248 which indicates that the phenolic hydroxyl of Tyr248 forms hydrogen loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsnetreader033viewer20220424055f1e6880c54b341db351cfd6html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentcraik-lab-general-base-catalyst-and-proton-donor-to-the-leaving-group-tyr37-va138htmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: Craik Lab · UCSF · general-base catalyst and proton donor to the leaving group Tyr37 va138 30Â 30È Gly39 Tyr248 which indicates that the phenolic hydroxyl of Tyr248 forms hydrogen loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...