InterPro : IPR008763

Name  Peptidase S55, SpoIVB Short Name  Peptidase_S55
Type  Domain Description  Proteolytic enzymes that exploit serine in their catalytic activity are ubiquitous, being found in viruses, bacteria and eukaryotes []. They include a wide range of peptidase activity, including exopeptidase, endopeptidase, oligopeptidase and omega-peptidase activity. Many families of serine protease have been identified, these being grouped into clans on the basis of structural similarity and other functional evidence []. Structures are known for members of the clans and the structures indicate that some appear to be totally unrelated, suggesting different evolutionary origins for the serine peptidases [].Not withstanding their different evolutionary origins, there are similarities in the reaction mechanisms of several peptidases. Chymotrypsin, subtilisin and carboxypeptidase C have a catalytic triad of serine, aspartate and histidine in common: serine acts as a nucleophile, aspartate as an electrophile, and histidine as a base []. The geometric orientations of the catalytic residues are similar between families, despite different protein folds []. The linear arrangements of the catalytic residues commonly reflect clan relationships. For example the catalytic triad in the chymotrypsin clan (PA) is ordered HDS, but is ordered DHS in the subtilisin clan (SB) and SDH in the carboxypeptidase clan (SC) [, ].This group of serine peptidases belong to the MEROPS peptidase family S55 (SpoIVB peptidase family, clan PA(S)).The protein SpoIVB plays a key role in signalling in the final sigma-K checkpoint of Bacillus subtilis[, ].
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Sequence Features

GO Displayer

Proteins

InterPro protein domain ID --> Contigs

 

Other

0 Child Features

0 Contains

1 Found In

Id Name Short Name Type
IPR014219 Peptidase S55, sporulation stage IV, protein B Pept_S55_SpoIVB Family

0 Parent Features

4 Publications

First Author Title Year Journal Volume Pages
Rawlings ND Evolutionary families of peptidases. 1993 Biochem J 290 ( Pt 1) 205-18
Rawlings ND Families of serine peptidases. 1994 Methods Enzymol 244 19-61
Hoa NT The PDZ domain of the SpoIVB serine peptidase facilitates multiple functions. 2001 J Bacteriol 183 4364-73
Hoa NT The Bacillus subtilis signaling protein SpoIVB defines a new family of serine peptidases. 2002 J Bacteriol 184 191-9



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)