ISDA

Deposition Date 2008-04-18

Release Date 2009-04-21

Last Version Date 2024-10-30

Entry Detail

PDB ID:

3CVK

Keywords:

TRANSFERASE

Title:

Crystal structure of HCV NS5B polymerase with a novel pyridazinone inhibitor

Biological Source:

Source Organism:

Hepatitis C virus (isolate BK) (Taxon ID: 11105)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.31 Å

R-Value Free:

0.27

R-Value Work:

0.20

R-Value Observed:

0.21

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:RNA-directed RNA polymerase
Mutations:Q544R
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

N34

Primary Citation

Hexahydro-pyrrolo- and hexahydro-1H-pyrido[1,2-b]pyridazin-2-ones as potent inhibitors of HCV NS5B polymerase.

Ruebsam, F, Sun, Z, Ayida, B.K, Webber, S.E, Zhou, Y, Zhao, Q, Kissinger, C.R, Showalter, R.E, Shah, A.M, Tsan, M, Patel, R, Lebrun, L.A, Kamran, R, Sergeeva, M.V, Bartkowski, D.M, Nolan, T.G, Norris, D.A, Kirkovsky, L.Show

Bioorg.Med.Chem.Lett. 18 5002 5005 (2008)

PMID: 18722768 DOI: 10.1016/j.bmcl.2008.08.017

Abstact

Hexahydro-pyrrolo- and hexahydro-1H-pyrido[1,2-b]pyridazin-2-one analogs were discovered as a novel class of inhibitors of genotype 1 HCV NS5B polymerase. Among these, compound 4c displayed potent inhibitory activities in biochemical and replicon assays (IC(50) (1b) <10 nM; EC(50) (1b)=34 nM) as well as good stability towards human liver microsomes (HLM t(1/2) =59 min).

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Primary Citation of related structures