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3N3I

Crystal Structure of G48V/C95F tethered HIV-1 Protease/Saquinavir complex

Functional Information from GO Data
ChainGOidnamespacecontents
A0004190molecular_functionaspartic-type endopeptidase activity
A0006508biological_processproteolysis
Functional Information from PDB Data
site_idAC1
Number of Residues21
DetailsBINDING SITE FOR RESIDUE ROC A 201
ChainResidue
AASP25
APRO81
AVAL82
AARG1008
AASP1025
AGLY1027
AALA1028
AILE1047
AVAL1048
AGLY1049
AILE1050
AGLY27
AHOH1100
AHOH1101
AALA28
AASP29
AASP30
AILE47
AVAL48
AGLY49
AILE50

Functional Information from PROSITE/UniProt
site_idPS00141
Number of Residues12
DetailsASP_PROTEASE Eukaryotic and viral aspartyl proteases active site. ALLDTGADDTVL
ChainResidueDetails
AALA22-LEU33
AALA1022-LEU1033

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues69
DetailsDomain: {"description":"Peptidase A2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00275","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues10
DetailsRegion: {"description":"Dimerization of protease","evidences":[{"source":"PubMed","id":"2162350","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsActive site: {"description":"For protease activity; shared with dimeric partner","evidences":[{"source":"PROSITE-ProRule","id":"PRU10094","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"33542150","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idMCSA1
Number of Residues3
DetailsM-CSA 175
ChainResidueDetails
AASP25hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
ATHR26electrostatic stabiliser, transition state stabiliser
AGLY27electrostatic stabiliser, hydrogen bond donor

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PDB entries from 2026-01-21

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