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3TKG

crystal structure of HIV model protease precursor/saquinavir complex

Functional Information from GO Data
ChainGOidnamespacecontents
A0004190molecular_functionaspartic-type endopeptidase activity
A0006508biological_processproteolysis
B0004190molecular_functionaspartic-type endopeptidase activity
B0006508biological_processproteolysis
C0004190molecular_functionaspartic-type endopeptidase activity
C0006508biological_processproteolysis
D0004190molecular_functionaspartic-type endopeptidase activity
D0006508biological_processproteolysis
Functional Information from PDB Data
site_idAC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL A 911
ChainResidue
ATHR74
AASN88
DARG41

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE GOL A 921
ChainResidue
ALYS45
AMET46
AILE47
BGLN61

site_idAC3
Number of Residues25
DetailsBINDING SITE FOR RESIDUE ROC B 801
ChainResidue
AASP25
AGLY27
AALA28
AASP29
AASP30
AGLY48
AGLY49
AILE50
ATHR80
APRO81
AILE84
BARG8
BASP25
BGLY27
BASP29
BASP30
BILE47
BGLY48
BGLY49
BILE50
BTHR80
BPRO81
BILE84
ATRP6
AARG8

site_idAC4
Number of Residues2
DetailsBINDING SITE FOR RESIDUE CL B 913
ChainResidue
BTHR74
BASN88

site_idAC5
Number of Residues26
DetailsBINDING SITE FOR RESIDUE ROC C 901
ChainResidue
CTRP6
CARG8
CASP25
CGLY27
CALA28
CASP29
CASP30
CILE47
CGLY48
CGLY49
CILE50
CTHR80
CILE84
CHOH1004
CHOH1010
DARG8
DASP25
DGLY27
DASP29
DASP30
DILE47
DGLY48
DGLY49
DILE50
DPRO81
DILE84

site_idAC6
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL C 912
ChainResidue
BARG41
CTHR74
CASN88

site_idAC7
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL D 914
ChainResidue
DGLY73
DTHR74
DASN88

Functional Information from PROSITE/UniProt
site_idPS00141
Number of Residues12
DetailsASP_PROTEASE Eukaryotic and viral aspartyl proteases active site. ALLDTGADDTVI
ChainResidueDetails
AALA22-ILE33

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues276
DetailsDomain: {"description":"Peptidase A2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00275","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues40
DetailsRegion: {"description":"Dimerization of protease","evidences":[{"source":"UniProtKB","id":"P04585","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsActive site: {"description":"For protease activity; shared with dimeric partner","evidences":[{"source":"PROSITE-ProRule","id":"PRU10094","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsSite: {"description":"Cleavage; by viral protease","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

249697

PDB entries from 2026-02-25

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