Peakdale and BioLeap collaborate on drug-like kinase library

01-Apr-2005

Peakdale Molecular, UK, and BioLeap, US, have entered into a collaboration to design and synthesise highly focused kinase libraries for drug discovery, with the initial project targeting the c-Abl Tyrosine Kinase. By combining BioLeap's leading edge computational fragment-based design capabilities with Peakdale's innovative chemistry expertise, the collaboration is set to produce drug like compounds that produce high quality, patentable leads for the pharmaceutical industry.

The new libraries will focus on tyrosine kinase targets and will expand the current Peakexplorer(TM) collections that comprise over 5000 novel GPCR screening compounds. Protein kinases play a crucial role in signal transduction and also in cellular proliferation, differentiation and various regulatory mechanisms. The inhibition of growth-related kinases, especially tyrosine kinases such as c-Abl Tyrosine Kinase, has the potential to provide new therapies for diseases such as cancer.

Of particular interest to Peakdale's chemists is BioLeap's proprietary technology that rapidly calculates the free energies of interaction between small molecular fragments and biomolecular structures, displaying the distribution and orientation of these fragments. One immediate benefit of this technology is the prediction of sites where tightly bound waters can be identified that cannot be seen in crystallography due to their high entropy. This information provides a unique insight into how small molecules bind into key protein binding sites that cannot be achieved from the static crystal structure alone, or from methods that can only measure the enthalpic properties of binding. In addition to lead discovery, the quantitative free-energy based analysis of protein-ligand interactions adds significant value to the lead optimisation process. This information will allow Peakdale's chemists to design novel compounds with better drug-like properties than existing compounds.

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