Document Type

Article

Publication Date

2015

College/Unit

Eberly College of Arts and Sciences

Department/Program/Center

Chemistry

Abstract

Src-family kinases (SFKs) play important roles in human biology and are key drug targets as well. However, achieving selective inhibition of individual Src-family kinases is challenging due to the high similarity within the protein family. We describe rhodium(II) conjugates that deliver both potent and selective inhibition of Src-family SH3 domains. Rhodium(II) conjugates offer dramatic affinity enhancements due to interactions with specific and unique Lewis-basic histidine residues near the SH3 binding interface, allowing predictable, structure-guided inhibition of SH3 targets that are recalcitrant to traditional inhibitors. In one example, a simple metallopeptide binds the Lyn SH3 domain with 6 nM affinity and exhibits functional activation of Lyn kinase under biologically relevant concentrations (EC50 ∼ 200 nM).

Source Citation

Vohidov, F., Knudsen, S. E., Leonard, P. G., Ohata, J., Wheadon, M. J., Popp, B. V., Ladbury, J. E., & Ball, Z. T. (2015). Potent and selective inhibition of SH3 domains with dirhodium metalloinhibitors. Chemical Science, 6(8), 4778–4783. https://doi.org/10.1039/c5sc01602a

Comments

This article is Open Access Creative Commons BY license All publication charges for this article have been paid for by the Royal Society of Chemistry

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