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1QR3

Structure of porcine pancreatic elastase in complex with FR901277, a novel macrocyclic inhibitor of elastases at 1.6 angstrom resolution

Functional Information from GO Data
ChainGOidnamespacecontents
E0004252molecular_functionserine-type endopeptidase activity
E0005515molecular_functionprotein binding
E0005576cellular_componentextracellular region
E0005615cellular_componentextracellular space
E0006508biological_processproteolysis
E0008233molecular_functionpeptidase activity
E0008236molecular_functionserine-type peptidase activity
E0016787molecular_functionhydrolase activity
E0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA E 400
ChainResidue
EGLU70
ELEU73
EHOH437
EHOH463
EHOH561
EHOH643

site_idAC2
Number of Residues11
DetailsBINDING SITE FOR RESIDUE SO4 E 401
ChainResidue
EHOH420
EHOH447
EHOH526
EHOH570
EHOH572
EHOH604
EHOH646
EHOH731
EGLY127
EARG145
EARG230

site_idAC3
Number of Residues16
DetailsBINDING SITE FOR CHAIN I OF FR901277
ChainResidue
ETHR41
EHIS57
EGLU62
EVAL99
ECYS191
EGLN192
EGLY193
ESER195
ESER214
EPHE215
EVAL216
EHOH460
EHOH492
EHOH610
EHOH727
IHOH61

Functional Information from PROSITE/UniProt
site_idPS00134
Number of Residues6
DetailsTRYPSIN_HIS Serine proteases, trypsin family, histidine active site. MTAAHC
ChainResidueDetails
EMET53-CYS58

site_idPS00135
Number of Residues12
DetailsTRYPSIN_SER Serine proteases, trypsin family, serine active site. SGcqGDSGGPLH
ChainResidueDetails
ESER189-HIS200

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues237
DetailsDomain: {"description":"Peptidase S1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00274","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Charge relay system","evidences":[{"source":"PubMed","id":"4578945","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"5415110","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsActive site: {"description":"Charge relay system","evidences":[{"source":"PubMed","id":"5415110","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"7656008","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1ELA","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ELB","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1ELC","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
EASP102
EHIS57

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
ESER195
EGLY196

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
ESER195
EGLY193

site_idCSA4
Number of Residues3
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
EASP102
ESER195
EHIS57

site_idCSA5
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
EASP102
ESER195
EHIS57
EGLY196

site_idCSA6
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
EASP102
ESER195
EGLY193
EHIS57

site_idCSA7
Number of Residues5
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
EASP102
ESER195
EGLY193
EHIS57
ESER214

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PDB entries from 2025-07-30

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