ISDA

Deposition Date 2008-04-21

Release Date 2009-04-21

Last Version Date 2024-10-30

Entry Detail

PDB ID:

3CWJ

Keywords:

TRANSFERASE, VIRAL PROTEIN

Title:

Crystal structure of hcv ns5b polymerase with a novel pyridazinone inhibitor

Biological Source:

Source Organism:

Hepatitis C virus (Taxon ID: )

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.29

R-Value Work:

0.23

R-Value Observed:

0.24

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:RNA-DIRECTED RNA POLYMERASE
Mutations:R544Q
Chain IDs:A, B
Chain Length:578
Number of Molecules:2
Biological Source:Hepatitis C virus

UniProt ID:P26663 Pfam ID:PF00998

Ligand Molecules

321

Primary Citation

4-(1,1-Dioxo-1,4-dihydro-1lambda6-benzo[1,4]thiazin-3-yl)-5-hydroxy-2H-pyridazin-3-ones as potent inhibitors of HCV NS5B polymerase

Ellis, D.A, Blazel, J.K, Webber, S.E, Tran, C.V, Dragovich, P.S, Sun, Z, Ruebsam, F, McGuire, H.M, Xiang, A.X, Zhao, J, Li, L.S, Zhou, Y, Han, Q, Kissinger, C.R, Showalter, R.E, Lardy, M, Shah, A.M, Tsan, M, Patel, R, LeBrun, L.A, Kamran, R, Bartkowski, D.M, Nolan, T.G, Norris, D.A, Sergeeva, M.V, Kirkovsky, L.Show

Bioorg.Med.Chem.Lett. 18 4628 4632 (2008)

PMID: 18662878 DOI: 10.1016/j.bmcl.2008.07.014

Abstact

4-(1,1-Dioxo-1,4-dihydro-1lambda(6)-benzo[1,4]thiazin-3-yl)-5-hydroxy-2H-pyridazin-3-one analogs were discovered as a novel class of inhibitors of HCV NS5B polymerase. Structure-based design led to the identification of compound 3a that displayed potent inhibitory activities in biochemical and replicon assays (1b IC(50)<10 nM; 1b EC(50)=1.1 nM) as well as good stability toward human liver microsomes (HLM t(1/2)>60 min).

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Primary Citation of related structures