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1H4W

Structure of human trypsin IV (brain trypsin)

Functional Information from GO Data
ChainGOidnamespacecontents
A0004252molecular_functionserine-type endopeptidase activity
A0006508biological_processproteolysis
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 260
ChainResidue
AGLU70
AASN72
AVAL75
AGLU77
AGLU80
AHOH2035

site_idAC2
Number of Residues8
DetailsBINDING SITE FOR RESIDUE BEN A 250
ChainResidue
AGLN192
ASER195
AGLY216
AGLY219
AGLY226
AASP189
ASER190
ACYS191

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

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues3
DetailsACT_SITE: Charge relay system => ECO:0000255|PROSITE-ProRule:PRU00274, ECO:0000305|PubMed:27810896
ChainResidueDetails
AHIS57
AASP102
ASER195

site_idSWS_FT_FI2
Number of Residues3
DetailsBINDING: BINDING => ECO:0000269|PubMed:11827488, ECO:0000269|PubMed:25301953, ECO:0000269|PubMed:27810896, ECO:0007744|PDB:1H4W, ECO:0007744|PDB:3L33, ECO:0007744|PDB:3L3T, ECO:0007744|PDB:3P92, ECO:0007744|PDB:3P95, ECO:0007744|PDB:4U30, ECO:0007744|PDB:4U32, ECO:0007744|PDB:5JBT, ECO:0007744|PDB:5TP0
ChainResidueDetails
AGLU70
AASN72
AVAL75

site_idSWS_FT_FI3
Number of Residues1
DetailsBINDING: BINDING => ECO:0000269|PubMed:11827488, ECO:0000269|PubMed:25301953, ECO:0000269|PubMed:27810896, ECO:0007744|PDB:1H4W, ECO:0007744|PDB:3L33, ECO:0007744|PDB:3L3T, ECO:0007744|PDB:3P92, ECO:0007744|PDB:3P95, ECO:0007744|PDB:4U30, ECO:0007744|PDB:4U32, ECO:0007744|PDB:5JBT
ChainResidueDetails
AGLU77

site_idSWS_FT_FI4
Number of Residues1
DetailsBINDING: BINDING => ECO:0000269|PubMed:11827488, ECO:0000269|PubMed:25301953, ECO:0000269|PubMed:27810896, ECO:0007744|PDB:1H4W, ECO:0007744|PDB:3L33, ECO:0007744|PDB:3L3T, ECO:0007744|PDB:3P92, ECO:0007744|PDB:3P95, ECO:0007744|PDB:4U32, ECO:0007744|PDB:5JBT, ECO:0007744|PDB:5TP0
ChainResidueDetails
AGLU80

site_idSWS_FT_FI5
Number of Residues1
DetailsSITE: Required for specificity => ECO:0000250
ChainResidueDetails
AASP189

site_idSWS_FT_FI6
Number of Residues1
DetailsMOD_RES: Sulfotyrosine => ECO:0000250
ChainResidueDetails
ATYR151

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AASP102
AHIS57

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
ASER195
AGLY196

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
ASER195
AARG193

site_idCSA4
Number of Residues3
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AASP102
ASER195
AHIS57

site_idCSA5
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AASP102
ASER195
AHIS57
AGLY196

site_idCSA6
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AASP102
ASER195
AARG193
AHIS57

237992

PDB entries from 2025-06-25

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