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4KLB

Crystal Structure of Cruzain in complex with the non-covalent inhibitor Nequimed176

Functional Information from GO Data
ChainGOidnamespacecontents
A0006508biological_processproteolysis
A0008234molecular_functioncysteine-type peptidase activity
B0006508biological_processproteolysis
B0008234molecular_functioncysteine-type peptidase activity
C0006508biological_processproteolysis
C0008234molecular_functioncysteine-type peptidase activity
D0006508biological_processproteolysis
D0008234molecular_functioncysteine-type peptidase activity
E0006508biological_processproteolysis
E0008234molecular_functioncysteine-type peptidase activity
Functional Information from PDB Data
site_idAC1
Number of Residues7
DetailsBINDING SITE FOR RESIDUE 1RV A 301
ChainResidue
ACYS25
AGLY65
AGLY66
AALA138
AASP161
AGLY163
AHOH428

site_idAC2
Number of Residues8
DetailsBINDING SITE FOR RESIDUE 1RV B 301
ChainResidue
BSER61
BGLY65
BGLY66
BLEU67
BASP161
BHIS162
BTHR59
BASP60

site_idAC3
Number of Residues7
DetailsBINDING SITE FOR RESIDUE 1RV C 301
ChainResidue
CASP60
CSER61
CGLY65
CGLY66
CASP161
CHIS162
CGLY163

Functional Information from PROSITE/UniProt
site_idPS00139
Number of Residues12
DetailsTHIOL_PROTEASE_CYS Eukaryotic thiol (cysteine) proteases cysteine active site. QGqCGSCWAfSA
ChainResidueDetails
AGLN19-ALA30

site_idPS00639
Number of Residues11
DetailsTHIOL_PROTEASE_HIS Eukaryotic thiol (cysteine) proteases histidine active site. LDHGVLLVGYN
ChainResidueDetails
ALEU160-ASN170

site_idPS00640
Number of Residues20
DetailsTHIOL_PROTEASE_ASN Eukaryotic thiol (cysteine) proteases asparagine active site. YWIiKNSWttqWGeeGYIrI
ChainResidueDetails
ATYR177-ILE196

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues15
DetailsActive site: {}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues10
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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