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1HXB

HIV-1 proteinase complexed with RO 31-8959

Functional Information from GO Data
ChainGOidnamespacecontents
A0004190molecular_functionaspartic-type endopeptidase activity
A0006508biological_processproteolysis
B0004190molecular_functionaspartic-type endopeptidase activity
B0006508biological_processproteolysis
Functional Information from PDB Data
site_idAC1
Number of Residues29
DetailsBINDING SITE FOR RESIDUE ROC A 100
ChainResidue
AARG8
AILE50
ATHR80
APRO81
AVAL82
AILE84
AHOH160
AHOH161
BARG8
BASP25
BGLY27
AASP25
BALA28
BASP29
BASP30
BILE47
BGLY48
BGLY49
BILE50
BPRO81
BVAL82
BILE84
AGLY27
AALA28
AASP29
AASP30
AILE47
AGLY48
AGLY49

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

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues138
DetailsDomain: {"description":"Peptidase A2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00275","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues20
DetailsRegion: {"description":"Dimerization of protease","evidences":[{"source":"PubMed","id":"2162350","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
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_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a30
ChainResidueDetails
AASP25
ATHR26
BASP25
BTHR26

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a30
ChainResidueDetails
AASP25
BASP25

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

site_idMCSA2
Number of Residues3
DetailsM-CSA 175
ChainResidueDetails
BASP25hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
BTHR26electrostatic stabiliser, transition state stabiliser
BGLY27electrostatic stabiliser, hydrogen bond donor

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PDB entries from 2026-02-25

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