Download MendeleyFragment-Based Discovery of Dual JC Virus and BK Virus Helicase Inhibitors.
Bonafoux, D., Nanthakumar, S., Bandarage, U.K., Memmott, C., Lowe, D., Aronov, A.M., Bhisetti, G.R., Bonanno, K.C., Coll, J., Leeman, J., Lepre, C.A., Lu, F., Perola, E., Rijnbrand, R., Taylor, W.P., Wilson, D., Zhou, Y., Zwahlen, J., Ter Haar, E.(2016) J Med Chem 59: 7138-7151
- PubMed: 27385654 Search on PubMed
- DOI: https://doi.org/10.1021/acs.jmedchem.6b00486
- Primary Citation Related Structures:
5J40, 5J47, 5J4V, 5J4Y - PubMed Abstract:
There are currently no treatments for life-threatening infections caused by human polyomaviruses JCV and BKV. We therefore report herein the first crystal structure of the hexameric helicase of JCV large T antigen (apo) and its use to drive the structure-based design of dual JCV and BKV ATP-competitive inhibitors. The crystal structures obtained by soaking our early inhibitors into the JCV helicase allowed us to rapidly improve the biochemical activity of our inhibitors from 18 μM for the early 6-(2-methoxyphenyl)- and the 6-(2-ethoxyphenyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole hits 1a and 1b to 0.6 μM for triazolopyridine 12i. In addition, we were able to demonstrate measurable antiviral activity in Vero cells for our thiazolopyridine series in the absence of marked cytotoxicity, thus confirming the usefulness of this approach.
- Vertex Pharmaceuticals, Incorporated , 50 Northern Avenue, Boston, Massachusetts 02210, United States.
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