ISDA

Entry Detail

PDB ID:

4EYR

Keywords:

HYDROLASE/HYDROLASE INHIBITOR

Title:

Crystal structure of multidrug-resistant clinical isolate 769 HIV-1 protease in complex with ritonavir

Biological Source:

Source Organism:

Human immunodeficiency virus 1

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2012-05-01

Release Date:

2013-01-30

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.80 Å

R-Value Free:

0.22

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 41

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Macromolecular Entities

Protein Blast

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

UniProt ID:Q000H7 Pfam ID:PF00077

Ligand Molecules

RIT

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.

Liu, Z, Yedidi, R.S, Wang, Y, Dewdney, T.G, Reiter, S.J, Brunzelle, J.S, Kovari, I.A, Kovari, L.C.Show

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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Primary Citation of related structures