Endopeptidase So Explained

Endopeptidase So
Ec Number:	3.4.21.67
Cas Number:	81611-83-8

Endopeptidase So (E. coli cytoplasmic proteinase, proteinase So, Escherichia coli serine proteinase So) is an enzyme.^{[1] [2]} This enzyme catalyses the following chemical reaction

Hydrolysis of proteins, but not Bz-Tyr-OEt, Ac-Phe-beta-naphthylester, or Bz-Arg-OEt

This is an Escherichia coli cytoplasmic endopeptidase.

Notes and References

1. Book: Goldberg AL, Swamy KH, Chung CH, Larimore FS . Proteases in Escherichia coli . Proteolytic Enzymes, Part C . Methods in Enzymology . 80 Pt C . 680–702 . 1981 . 7043205 . 10.1016/s0076-6879(81)80052-3 . 978-0-12-181980-4 .
2. Chung CH, Goldberg AL . Purification and characterization of protease So, a cytoplasmic serine protease in Escherichia coli . Journal of Bacteriology . 154 . 1 . 231–8 . April 1983 . 10.1128/jb.154.1.231-238.1983 . 6339474 . 217451 .