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1SPB

SUBTILISIN BPN' PROSEGMENT (77 RESIDUES) COMPLEXED WITH A MUTANT SUBTILISIN BPN' (266 RESIDUES). CRYSTAL PH 4.6. CRYSTALLIZATION TEMPERATURE 20 C DIFFRACTION TEMPERATURE-160 C

Functional Information from GO Data
ChainGOidnamespacecontents
S0004252molecular_functionserine-type endopeptidase activity
S0006508biological_processproteolysis
S0008236molecular_functionserine-type peptidase activity
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE NA S 297
ChainResidue
SGLY169
STYR171
SVAL174
SGLU195
SASP197
SHOH304

Functional Information from PROSITE/UniProt
site_idPS00137
Number of Residues11
DetailsSUBTILASE_HIS Serine proteases, subtilase family, histidine active site. HGThVAGtVLA
ChainResidueDetails
SHIS64-ALA74

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues66
DetailsDomain: {"description":"Inhibitor I9","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues3
DetailsActive site: {"description":"Charge relay system","evidences":[{"source":"PROSITE-ProRule","id":"PRU01240","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"5249818","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsBinding site: {}
ChainResidueDetails

Catalytic Information from CSA
site_idMCSA1
Number of Residues4
DetailsM-CSA 723
ChainResidueDetails

240971

PDB entries from 2025-08-27

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