Structure of PDB 1ec3 Chain B

Receptor sequence
>1ec3B (length=99) Species: 11676 (Human immunodeficiency virus 1) [Search protein sequence]
PQITLWQRPLVTIKIGGQLKEALLDTGADDTVLEEMSLPGRWKPKMIGGI
GGFIKVRQYDQILIEICGHKAIGTVLVGPTPVNIIGRNLLTQIGCTLNF
3D structure
PDB1ec3 Optimization of P1-P3 groups in symmetric and asymmetric HIV-1 protease inhibitors
ChainB
Resolution1.8 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D125 T126 G127
Catalytic site (residue number reindexed from 1) D25 T26 G27
Enzyme Commision number 2.7.7.-
2.7.7.49: RNA-directed DNA polymerase.
2.7.7.7: DNA-directed DNA polymerase.
3.1.-.-
3.1.13.2: exoribonuclease H.
3.1.26.13: retroviral ribonuclease H.
3.4.23.16: HIV-1 retropepsin.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 MS3 B R108 D125 G127 A128 D129 G148 G149 I150 P181 V182 R8 D25 G27 A28 D29 G48 G49 I50 P81 V82 PDBbind-CN: -logKd/Ki=9.04,Ki=0.92nM
Gene Ontology
Molecular Function
GO:0004190 aspartic-type endopeptidase activity
Biological Process
GO:0006508 proteolysis

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Molecular Function
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Biological Process
External links
PDB RCSB:1ec3, PDBe:1ec3, PDBj:1ec3
PDBsum1ec3
PubMed12694187
UniProtP03366|POL_HV1B1 Gag-Pol polyprotein (Gene Name=gag-pol)

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