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1LDT

COMPLEX OF LEECH-DERIVED TRYPTASE INHIBITOR WITH PORCINE TRYPSIN

Functional Information from GO Data
ChainGOidnamespacecontents
L0004867molecular_functionserine-type endopeptidase inhibitor activity
L0005515molecular_functionprotein binding
L0030414molecular_functionpeptidase inhibitor activity
T0004252molecular_functionserine-type endopeptidase activity
T0005515molecular_functionprotein binding
T0005576cellular_componentextracellular region
T0005615cellular_componentextracellular space
T0006508biological_processproteolysis
T0007586biological_processdigestion
T0008233molecular_functionpeptidase activity
T0008236molecular_functionserine-type peptidase activity
T0016787molecular_functionhydrolase activity
T0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA T 1007
ChainResidue
TGLU70
TASN72
TVAL75
TGLU77
TGLU80
THOH2053

Functional Information from PROSITE/UniProt
site_idPS00134
Number of Residues6
DetailsTRYPSIN_HIS Serine proteases, trypsin family, histidine active site. VSAAHC
ChainResidueDetails
TVAL53-CYS58

site_idPS00135
Number of Residues12
DetailsTRYPSIN_SER Serine proteases, trypsin family, serine active site. DScqGDSGGPVV
ChainResidueDetails
TASP189-VAL200

site_idPS00282
Number of Residues24
DetailsKAZAL_1 Kazal serine protease inhibitors family signature. CpkilKpvCgSdgrtYansCiarC
ChainResidueDetails
LCYS6-CYS29

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 Residues4
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsSite: {"description":"Required for specificity","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues41
DetailsDomain: {"description":"Kazal-like","evidences":[{"source":"PROSITE-ProRule","id":"PRU00798","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues1
DetailsSite: {"description":"Reactive bond (tryptase)"}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
TASP102
THIS57

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
TSER195
TGLY196

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
TSER195
TGLY193

site_idCSA4
Number of Residues3
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
TASP102
TSER195
THIS57

site_idCSA5
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
TASP102
TSER195
THIS57
TGLY196

site_idCSA6
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
TASP102
TSER195
TGLY193
THIS57

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PDB entries from 2025-12-17

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