Structure of PDB 1k2b Chain B Binding Site BS01

Receptor Information
>1k2b Chain B (length=99) Species: 11676 (Human immunodeficiency virus 1) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
PQITLWKRPLVTIKIGGQLKEALLDTGADDTVIEEMSLPGRWKPKMIGGI
GGFIKVRQYDQIIIEIAGHKAIGTVLVGPTPVNIIGRDLMTQIGATLNF
Ligand information
Ligand ID0Q4
InChIInChI=1S/C40H69N11O8/c1-7-8-16-29(34(42)54)49-35(55)25(6)47-37(57)30(17-18-32(52)53)50-38(58)31(21-26-13-10-9-11-14-26)46-22-27(20-23(2)3)48-39(59)33(24(4)5)51-36(56)28(41)15-12-19-45-40(43)44/h9-11,13-14,23-25,27-31,33,46H,7-8,12,15-22,41H2,1-6H3,(H2,42,54)(H,47,57)(H,48,59)(H,49,55)(H,50,58)(H,51,56)(H,52,53)(H4,43,44,45)/p+1/t25-,27-,28-,29-,30-,31-,33-/m0/s1
InChIKeySGWAZUZKMXHYMB-UQGDEETHSA-O
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.7.0CCCCC(C(=O)N)NC(=O)C(C)NC(=O)C(CCC(=O)O)NC(=O)C(Cc1ccccc1)NCC(CC(C)C)NC(=O)C(C(C)C)NC(=O)C(CCCNC(=[NH2+])N)N
ACDLabs 12.01O=C(N)C(NC(=O)C(NC(=O)C(NC(=O)C(NCC(NC(=O)C(NC(=O)C(N)CCCNC(=[NH2+])\N)C(C)C)CC(C)C)Cc1ccccc1)CCC(=O)O)C)CCCC
OpenEye OEToolkits 1.7.0CCCC[C@@H](C(=O)N)NC(=O)[C@H](C)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](Cc1ccccc1)NC[C@H](CC(C)C)NC(=O)[C@H](C(C)C)NC(=O)[C@H](CCCNC(=[NH2+])N)N
CACTVS 3.370CCCC[CH](NC(=O)[CH](C)NC(=O)[CH](CCC(O)=O)NC(=O)[CH](Cc1ccccc1)NC[CH](CC(C)C)NC(=O)[CH](NC(=O)[CH](N)CCCNC(N)=[NH2+])C(C)C)C(N)=O
CACTVS 3.370CCCC[C@H](NC(=O)[C@H](C)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](Cc1ccccc1)NC[C@H](CC(C)C)NC(=O)[C@@H](NC(=O)[C@@H](N)CCCNC(N)=[NH2+])C(C)C)C(N)=O
FormulaC40 H70 N11 O8
NameN-[(2R)-2-({N~5~-[amino(iminio)methyl]-L-ornithyl-L-valyl}amino)-4-methylpentyl]-L-phenylalanyl-L-alpha-glutamyl-L-alanyl-L-norleucinamide;
Inhibitor analogues of CA-p2
ChEMBL
DrugBank
ZINC
PDB chain1k2b Chain A Residue 401 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1k2b Combining mutations in HIV-1 protease to understand mechanisms of resistance.
Resolution1.7 Å
Binding residue
(original residue number in PDB)		D25 G27 A28 D29 D30 K45 I47 G48 I50
Binding residue
(residue number reindexed from 1)		D25 G27 A28 D29 D30 K45 I47 G48 I50
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) D25 T26 G27
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.
Gene Ontology
Molecular Function
GO:0004190 aspartic-type endopeptidase activity
Biological Process
GO:0006508 proteolysis

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:1k2b, PDBe:1k2b, PDBj:1k2b
PDBsum1k2b
PubMed12012342
UniProtP04587|POL_HV1B5 Gag-Pol polyprotein (Gene Name=gag-pol)

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