ISDA

Deposition Date 2015-02-20

Release Date 2015-04-15

Last Version Date 2024-02-28

Entry Detail

PDB ID:

4YD0

Keywords:

TRANSCRIPTION/INHIBITOR

Title:

Influenza polymerase basic protein 2 (PB2) bound to an azaindole-tetrazole inhibitor

Biological Source:

Source Organism:

Influenza A virus (Taxon ID: 383596)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.62 Å

R-Value Free:

0.21

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 65

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Polymerase basic protein 2
Gene (Uniprot):PB2
Chain IDs:A
Chain Length:169
Number of Molecules:1
Biological Source:Influenza A virus

UniProt ID:Q30NP1 Pfam ID:PF00604

Ligand Molecules

4EW

Primary Citation

Isosteric replacements of the carboxylic acid of drug candidate VX-787: Effect of charge on antiviral potency and kinase activity of azaindole-based influenza PB2 inhibitors.

Boyd, M.J, Bandarage, U.K, Bennett, H, Byrn, R.R, Davies, I, Gu, W, Jacobs, M, Ledeboer, M.W, Ledford, B, Leeman, J.R, Perola, E, Wang, T, Bennani, Y, Clark, M.P, Charifson, P.S.Show

Bioorg.Med.Chem.Lett. 25 1990 1994 (2015)

PMID: 25827523 DOI: 10.1016/j.bmcl.2015.03.013

Abstact

VX-787 is a first in class, orally bioavailable compound that offers unparalleled potential for the treatment of pandemic and seasonal influenza. As a part of our routine SAR exploration, carboxylic acid isosteres of VX-787 were prepared and tested against influenza A. It was found that the negative charge is important for maintaining potency and selectivity relative to kinase targets. Neutral carboxylic acid replacements generally resulted in compounds that were significantly less potent and less selective relative to the charged species.

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Protein

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Primary Citation of related structures