ISDA

Deposition Date 2010-11-03

Release Date 2010-11-17

Last Version Date 2024-02-21

Entry Detail

PDB ID:

3PHE

Keywords:

Transferase/Transferase Inhibitor

Title:

HCV NS5B with a bound quinolone inhibitor

Biological Source:

Source Organism:

Hepatitis C virus (Taxon ID: 11103)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.20 Å

R-Value Free:

0.26

R-Value Work:

0.21

R-Value Observed:

0.22

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:HCV encoded nonstructural 5B protein
Chain IDs:A, B, C, D
Chain Length:576
Number of Molecules:4
Biological Source:Hepatitis C virus

UniProt ID:D0PY27 Pfam ID:PF00998

Ligand Molecules

C9A

Primary Citation

Quinolones as HCV NS5B polymerase inhibitors.

Kumar, D.V, Rai, R, Brameld, K.A, Somoza, J.R, Rajagopalan, R, Janc, J.W, Xia, Y.M, Ton, T.L, Shaghafi, M.B, Hu, H, Lehoux, I, To, N, Young, W.B, Green, M.J.Show

Bioorg.Med.Chem.Lett. 21 82 87 (2011)

PMID: 21145235 DOI: 10.1016/j.bmcl.2010.11.068

Abstact

Hepatitis C virus (HCV) infection is treated with a combination of peginterferon alfa-2a/b and ribavirin. To address the limitations of this therapy, numerous small molecule agents are in development, which act by directly affecting key steps in the viral life-cycle. Herein we describe our discovery of quinolone derivatives, novel small-molecules that inhibit NS5b polymerase, a key enzyme of the viral life-cycle. A crystal structure of a quinoline analog bound to NS5B reveals that this class of compounds binds to allosteric site-II (non-nucleoside inhibitor-site 2, NNI-2) of this protein.

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Primary Citation of related structures