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6D3Z

Protease SFTI complex

Functional Information from GO Data
ChainGOidnamespacecontents
A0004252molecular_functionserine-type endopeptidase activity
A0006508biological_processproteolysis
Functional Information from PROSITE/UniProt
site_idPS00134
Number of Residues6
DetailsTRYPSIN_HIS Serine proteases, trypsin family, histidine active site. LTAAHC
ChainResidueDetails
ALEU599-CYS604

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues227
DetailsDomain: {"description":"Peptidase S1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00274","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues3
DetailsActive site: {"description":"Charge relay system"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"9201958","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"24275569","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues13
DetailsPeptide: {"description":"Trypsin inhibitor 1","featureId":"PRO_0000042673"}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues1
DetailsSite: {"description":"Reactive bond","evidences":[{"source":"UniProtKB","id":"P81705","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues2
DetailsCross-link: {"description":"Cyclopeptide (Gly-Asp)"}
ChainResidueDetails

Catalytic Information from CSA
site_idMCSA1
Number of Residues4
DetailsM-CSA 425
ChainResidueDetails
AHIS603proton shuttle (general acid/base)
AASP646electrostatic stabiliser, modifies pKa
AALA741covalent catalysis, proton shuttle (general acid/base)
AGLY742electrostatic stabiliser

239149

PDB entries from 2025-07-23

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