posted 09-08-2009 08:44 AM            

To prepare this focused library, our scientists have implemented a number of crucial improvements of a calculation algorithm which include:
• specific charge assignment method as well as
• unique force field and scoring functions

Using these improvements, this CHK1 focused library has been designed with powerful combination of:
• drug-likeness filtering,
• molecular docking,
• re-scoring, and
• key intermolecular hydrogen bond detection

Moreover, to enhance the result our experts visually inspected about 10,000 top-ranked docked complexes and select only those compounds that both computer software and scientists suggested to be the most promising as CHK1 inhibitors.

As a result, this CHK1 focused library is an excellent and essential starting point in a drug discovery program.

Selected references:

[1] Yakovenko et al. Kirchhoff atomic charges fitted to multipole moments: implementation for a virtual screening system. Journal of Computational Chemistry 2008, 29 (8), 1332-1343.

[2] Yakovenko et al. The new method of distribution integrals evaluations for high throughput virtual screening. Ukrainica Bioorganica Acta 2007, 5 (1), 52-62.

[3] Golub et al. Evaluation of 3-Carboxy-4(1H)-quinolones as Inhibitors of Human Protein Kinase CK2. Journal of Medicinal Chemistry 2006, 49 (22), 6443-6450.

[4] Yakovenko et al. Application of distribution function of rotation and translation degrees of freedom for CK2 inhibitors Ki estimation. Ukrainica Bioorganica Acta 2006, 4 (2), 47-55.

About OTAVA

OTAVA provides compound libraries for screening and it offers custom synthesis and molecular modeling services, targeted compound libraries and protein kinase inhibitors, prescreened anticancer compounds, peptide and chromogenic substrates. The company also supplies fine organic chemicals including unique building blocks for combinatorial synthesis. OTAVA is also one of the leaders in design and development of fluorescent probes, kits and reagents.

Company contact information:

OTAVA Ltd.
150 Zabolotnogo St.
Kyiv 143, 03143
Ukraine
Tel./Fax: +380 44 5222458
info@otavachemicals.com