InterPro : IPR000200

Name  Peptidase C10, streptopain Short Name  Peptidase_C10
Type  Family Description  Cysteine peptidases have characteristic molecular topologies, which can be seen not only in their three-dimensional structures, but commonly also in the two-dimensional structures. These are peptidases in which the nucleophile is the sulphydryl group of a cysteine residue. Cysteine proteases are divided into clans (proteins which are evolutionary related), and further sub-divided into families, on the basis of the architecture of their catalytic dyad or triad []. This group of cysteine peptidases belong to MEROPS peptidase family C10 (streptopain family, clan CA). Streptopain is a cysteine protease found in Streptococcus pyogenesthat shows some structural and functional similarity to papain (family C1) [, ]. The order of the catalytic cysteine/histidine dyad is the same and the surrounding sequences are similar. The two proteins also show similar specificities, both preferring a hydrophobic residue at the P2 site [, ].Streptopain shows a high degree of sequence similarity to the S. pyogenes exotoxin B, and strong similarity to the prtT gene product ofPorphyromonas gingivalis(Bacteroides gingivalis), both of which have been included in the family [].

Sequence Features

GO Displayer


InterPro protein domain ID --> Contigs



0 Child Features

0 Contains

0 Found In

0 Parent Features

4 Publications

First Author Title Year Journal Volume Pages
Barrett AJ Evolutionary lines of cysteine peptidases. 2001 Biol Chem 382 727-33
Kortt AA On the mechanism of action of streptococcal proteinase. II. Comparison of the kinetics of proteinase- and papain-catalyzed hydrolysis of N-acylamino acid esters. 1973 Biochemistry 12 328-37
Tai JY Primary structure of streptococcal proteinase. III. Isolation of cyanogen bromide peptides: complete covalent structure of the polypeptide chain. 1976 J Biol Chem 251 1955-9
Rawlings ND Families of cysteine peptidases. 1994 Methods Enzymol 244 461-86

To cite PlanMine, please refer to the following publication:

Rozanski, A., Moon, H., Brandl, H., Martín-Durán, J. M., Grohme, M., Hüttner, K., Bartscherer, K., Henry, I., & Rink, J. C.
PlanMine 3.0—improvements to a mineable resource of flatworm biology and biodiversity
Nucleic Acids Research, gky1070. doi:10.1093/nar/gky1070 (2018)