4EYR image
Entry Detail
PDB ID:
4EYR
Title:
Crystal structure of multidrug-resistant clinical isolate 769 HIV-1 protease in complex with ritonavir
Biological Source:
Host Organism:
PDB Version:
Deposition Date:
2012-05-01
Release Date:
2013-01-30
Method Details:
Experimental Method:
Resolution:
1.80 Å
R-Value Free:
0.22
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
P 41
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:HIV-1 PROTEASE
Chain IDs:A, B
Chain Length:99
Number of Molecules:2
Biological Source:Human immunodeficiency virus 1
Ligand Molecules
Peptide-like Molecules
PRD_001001
Primary Citation
Insights into the mechanism of drug resistance: X-ray structure analysis of multi-drug resistant HIV-1 protease ritonavir complex.
Biochem.Biophys.Res.Commun. 431 232 238 (2013)
PMID: 23313846 DOI: 10.1016/j.bbrc.2012.12.127

Abstact

Ritonavir (RTV) is a first generation HIV-1 protease inhibitor with rapidly emerging drug resistance. Mutations at residues 46, 54, 82 and 84 render the HIV-1 protease drug resistant against RTV. We report the crystal structure of multi-drug resistant (MDR) 769 HIV-1 protease (carrying resistant mutations at residues 10, 36, 46, 54, 62, 63, 71, 82, 84 and 90) complexed with RTV and the in vitro enzymatic IC(50) of RTV against MDR HIV-1 protease. The structural and functional studies demonstrate significant drug resistance of MDR HIV-1 protease against RTV, arising from reduced hydrogen bonds and Van der Waals interactions between RTV and MDR HIV-1 protease.

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