ISDA

Entry Detail

PDB ID:

3D28

Keywords:

TRANSFERASE

Title:

Crystal structure of hcv ns5b polymerase with a novel benzisothiazole inhibitor

Biological Source:

Source Organism:

Hepatitis C virus (isolate BK)

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2008-05-07

Release Date:

2009-05-19

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.30 Å

R-Value Free:

0.31

R-Value Work:

0.25

R-Value Observed:

0.26

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:RNA-directed RNA polymerase
Mutations:R2963Q
Chain IDs:A, B
Chain Length:578
Number of Molecules:2
Biological Source:Hepatitis C virus (isolate BK)

UniProt ID:P26663 Pfam ID:PF00998 EC:3.4.21.98

Ligand Molecules

B34

Primary Citation

Structure-based design, synthesis, and biological evaluation of 1,1-dioxoisothiazole and benzo[b]thiophene-1,1-dioxide derivatives as novel inhibitors of hepatitis C virus NS5B polymerase.

Kim, S.H, Tran, M.T, Ruebsam, F, Xiang, A.X, Ayida, B, McGuire, H, Ellis, D, Blazel, J, Tran, C.V, Murphy, D.E, Webber, S.E, Zhou, Y, Shah, A.M, Tsan, M, Showalter, R.E, Patel, R, Gobbi, A, LeBrun, L.A, Bartkowski, D.M, Nolan, T.G, Norris, D.A, Sergeeva, M.V, Kirkovsky, L, Zhao, Q, Han, Q, Kissinger, C.R.Show

Bioorg.Med.Chem.Lett. 18 4181 4185 (2008)

PMID: 18554907 DOI: 10.1016/j.bmcl.2008.05.083

Abstact

A novel series of HCV NS5B polymerase inhibitors comprising 1,1-dioxoisothiazoles and benzo[b]thiophene-1,1-dioxides were designed, synthesized, and evaluated. SAR studies guided by structure-based design led to the identification of a number of potent NS5B inhibitors with nanomolar IC(50) values. The most potent compound exhibited IC(50) less than 10nM against the genotype 1b HCV polymerase and EC(50) of 70 nM against a genotype 1b replicon in cell culture. The DMPK properties of selected compounds were also evaluated.

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