soj (parA):an ATPase that interacts with Spo0J

spo0J (parB):DNA-binding protein

parS:A specific DNA sequence motif(binding site for the Spo0J)

soj K16A:ATP binding deficient,cooperative DNA binding deficient

soj G12V:ATP binding proficient,cooperative DNA binding deficient

soj D40A:ATP2-bound dimer,cooperative DNA binding proficientATP hydrolysis deficient

http://homepages.strath.ac.uk/~dfs97113/BB310/Lect2/Lect2.html

During vegetative growth, the formation ofa Z-ring at midcell, and the subsequentassembly of the division machinery anddivision septum, leads to the formation oftwo equal daughter cells. By contrast,during sporulation, cell division isasymmetric, and unequal progeny — theforespore and the mother cell — areformed. Asymmetric cell division occursafter the transient formation of FtsZ spiralsdistributes FtsZ molecules to both poles ofthe cells, allowing the formation of an FtsZring at each pole. Only one of these formsa division or spore septum.

http://www.sci.hokudai.ac.jp/science/science/H13_05/koubunsi/cell-division.html

Normal Cell Division Potential Regions for Cell Division