ISDA

Entry Detail

PDB ID:

3CJ5

Keywords:

Title:

Crystal structure of hepatitis c virus rna-dependent rna polymerase ns5b in complex with optimized small molecule fragments

Biological Source:

Source Organism:

Hepatitis C virus subtype 1b

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2008-03-12

Release Date:

2008-04-15

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.92 Å

R-Value Free:

0.25

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:RNA-directed RNA polymerase
Chain IDs:A, B
Chain Length:576
Number of Molecules:2
Biological Source:Hepatitis C virus subtype 1b

UniProt ID:P26663 Pfam ID:PF00998 EC:3.4.21.98

Ligand Molecules

SX6

Primary Citation

Fragment-based discovery of hepatitis C virus NS5b RNA polymerase inhibitors.

Antonysamy, S.S, Aubol, B, Blaney, J, Browner, M.F, Giannetti, A.M, Harris, S.F, Hebert, N, Hendle, J, Hopkins, S, Jefferson, E, Kissinger, C, Leveque, V, Marciano, D, McGee, E, Najera, I, Nolan, B, Tomimoto, M, Torres, E, Wright, T.Show

Bioorg.Med.Chem.Lett. 18 2990 2995 (2008)

PMID: 18400495 DOI: 10.1016/j.bmcl.2008.03.056

Abstact

Non-nucleoside inhibitors of HCV NS5b RNA polymerase were discovered by a fragment-based lead discovery approach, beginning with crystallographic fragment screening. The NS5b binding affinity and biochemical activity of fragment hits and inhibitors was determined by surface plasmon resonance (Biacore) and an enzyme inhibition assay, respectively. Crystallographic fragment screening hits with approximately 1-10mM binding affinity (K(D)) were iteratively optimized to give leads with approximately 200nM biochemical activity and low microM cellular activity in a Replicon assay.

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Primary Citation of related structures