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3T4A

Structure of a truncated form of Staphylococcal Complement Inhibitor B bound to human C3c at 3.4 Angstrom resolution

Functional Information from GO Data
ChainGOidnamespacecontents
A0004866molecular_functionendopeptidase inhibitor activity
B0004866molecular_functionendopeptidase inhibitor activity
C0005576cellular_componentextracellular region
D0004866molecular_functionendopeptidase inhibitor activity
E0004866molecular_functionendopeptidase inhibitor activity
F0005576cellular_componentextracellular region
Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsSite: {"description":"(Microbial infection) Cleavage; by S.pyogenes SpeB","evidences":[{"source":"PubMed","id":"18160402","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues10
DetailsModified residue: {"description":"Phosphoserine; by FAM20C","evidences":[{"source":"PubMed","id":"26091039","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"12754519","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"16263699","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"16335952","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"17051150","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"17684013","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19159218","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"2579379","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues50
DetailsRegion: {"description":"Interaction with CFP/properdin","evidences":[{"source":"PubMed","id":"28264884","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"31507604","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsSite: {"description":"Coordinates Mg(2+) for interaction with Complement factor B Bb fragment (CFB)","evidences":[{"source":"PubMed","id":"28264884","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"31507604","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues2
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"16335952","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

238895

PDB entries from 2025-07-16

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