The Enzyme Database

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Accepted name: signal peptidase II
Reaction: Release of signal peptides from bacterial membrane prolipoproteins including murein prolipoprotein. Hydrolyses -Xaa-Yaa-Zaa┼(S,diacylglyceryl)Cys-, in which Xaa is hydrophobic (preferably Leu), and Yaa (Ala or Ser) and Zaa (Gly or Ala) have small, neutral sidechains
Other name(s): premurein-leader peptidase; prolipoprotein signal peptidase; leader peptidase II; premurein leader proteinase
Comments: An 18-kDa enzyme present in bacterial inner membranes. Inhibited by pepstatin and the antibiotic globomycin. Type example of peptidase family A8.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, MEROPS, PDB, CAS registry number: 171715-14-3
1.  Dev, I.K. and Ray, P.H. Signal peptidases and signal peptide hydrolases. J. Bioenerg. Biomembr. 22 (1990) 271–290. [PMID: 2202720]
2.  Zhao, X.-J. and Wu, H.C. Nucleotide sequence of the Staphylococcus aureus signal peptidase II (lsp) gene. FEBS Lett. 299 (1992) 80–84. [DOI] [PMID: 1544479]
3.  Sankaran, K. and Wu, H.C. Bacterial prolipoprotein signal peptidase. Methods Enzymol. 248 (1995) 169–180. [PMID: 7674920]
[EC created 1984 as EC, transferred 1995 to EC]

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