ISDA

Entry Detail

PDB ID:

3U4O

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

Novel HCV NS5B polymerase Inhibitors: Discovery of Indole C2 Acyl sulfonamides

Biological Source:

Source Organism:

Hepatitis C virus

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2011-10-10

Release Date:

2011-12-07

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.77 Å

R-Value Free:

0.19

R-Value Work:

0.16

R-Value Observed:

0.16

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:578
Number of Molecules:2
Biological Source:Hepatitis C virus

UniProt ID:O92972 Pfam ID:PF00998 EC:2.7.7.48

Ligand Molecules

08E

PO4

Primary Citation

II. Novel HCV NS5B polymerase inhibitors: Discovery of indole C2 acyl sulfonamides.

Anilkumar, G.N, Selyutin, O, Rosenblum, S.B, Zeng, Q, Jiang, Y, Chan, T.Y, Pu, H, Wang, L, Bennett, F, Chen, K.X, Lesburg, C.A, Duca, J, Gavalas, S, Huang, Y, Pinto, P, Sannigrahi, M, Velazquez, F, Venkatraman, S, Vibulbhan, B, Agrawal, S, Ferrari, E, Jiang, C.K, Huang, H.C, Shih, N.Y, George Njoroge, F, Kozlowski, J.A.Show

Bioorg.Med.Chem.Lett. 22 713 717 (2012)

PMID: 22104146 DOI: 10.1016/j.bmcl.2011.10.041

Abstact

Development of SAR at the C2 position of indole lead 1, a palm site inhibitor of HCV NS5B polymerase (NS5B IC(50)=0.053μM, replicon EC(50)=4.8μM), is described. Initial screening identified an acyl sulfonamide moiety as an isostere for the C2 carboxylic acid group. Further SAR investigation resulted in identification of acyl sufonamide analog 7q (NS5B IC(50)=0.039μM, replicon EC(50)=0.011μM) with >100-fold improved replicon activity.

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Primary Citation of related structures