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6EAU

Crystallographic structure of the octapeptide derived from the BTCI inhibitor bound to beta-trypsin in space group P 21 21 21.

Functional Information from GO Data
ChainGOidnamespacecontents
A0004175molecular_functionendopeptidase activity
A0004252molecular_functionserine-type endopeptidase activity
A0005515molecular_functionprotein binding
A0005576cellular_componentextracellular region
A0005615cellular_componentextracellular space
A0006508biological_processproteolysis
A0007586biological_processdigestion
A0008233molecular_functionpeptidase activity
A0008236molecular_functionserine-type peptidase activity
A0016787molecular_functionhydrolase activity
A0046872molecular_functionmetal ion binding
A0097180cellular_componentserine protease inhibitor complex
A0097655molecular_functionserpin family protein binding
Functional Information from PDB Data
site_idAC1
Number of Residues8
Detailsbinding site for residue SO4 A 301
ChainResidue
APRO152
AASP153
AVAL154
ALYS156
AHOH402
AHOH520
AHOH596
AHOH652

site_idAC2
Number of Residues7
Detailsbinding site for residue SO4 A 302
ChainResidue
ASER164
AASP165
AHOH413
AHOH444
AHOH559
AHOH631
AALA132

site_idAC3
Number of Residues8
Detailsbinding site for residue SO4 A 303
ChainResidue
ALYS169
APRO173
AGLY174
AGLN240
AHOH482
AHOH552
AHOH556
AHOH604

site_idAC4
Number of Residues6
Detailsbinding site for residue SO4 A 304
ChainResidue
AASN95
ATHR98
AASN100
AHOH422
AHOH511
AHOH563

site_idAC5
Number of Residues5
Detailsbinding site for residue SO4 A 305
ChainResidue
AILE47
AASN48
ALYS239
AILE242
AHOH430

site_idAC6
Number of Residues5
Detailsbinding site for residue SO4 A 306
ChainResidue
AASN95
AASN97
ASER110
AHOH477
AHOH601

site_idAC7
Number of Residues9
Detailsbinding site for residue SO4 A 307
ChainResidue
ACYS128
AALA129
ASER130
ATHR134
ASER202
AHOH409
AHOH411
AHOH418
AHOH435

site_idAC8
Number of Residues6
Detailsbinding site for residue CA A 308
ChainResidue
AGLU70
AASN72
AVAL75
AGLU80
AHOH429
AHOH531

Functional Information from PROSITE/UniProt
site_idPS00134
Number of Residues6
DetailsTRYPSIN_HIS Serine proteases, trypsin family, histidine active site. VSAAHC
ChainResidueDetails
AVAL53-CYS58

site_idPS00135
Number of Residues12
DetailsTRYPSIN_SER Serine proteases, trypsin family, serine active site. DScqGDSGGPVV
ChainResidueDetails
AASP189-VAL200

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues220
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 Residues7
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsSite: {"description":"Reactive bond for trypsin","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

246905

PDB entries from 2025-12-31

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