- Fragment-based discovery of selective inhibitors of the Mycobacterium tuberculosis protein tyrosine phosphatase PtpA.
Fragment-based discovery of selective inhibitors of the Mycobacterium tuberculosis protein tyrosine phosphatase PtpA.
Bioorganic & medicinal chemistry letters (2009-11-06)
Katherine A Rawls, P Therese Lang, Jun Takeuchi, Shinichi Imamura, Tyler D Baguley, Christoph Grundner, Tom Alber, Jonathan A Ellman
PMID19889539
ABSTRACT
The development of low muM inhibitors of the Mycobacterium tuberculosis phosphatase PtpA is reported. The most potent of these inhibitors (K(i)=1.4+/-0.3 microM) was found to be selective when tested against a panel of human tyrosine and dual-specificity phosphatases (11-fold vs the highly homologous HCPtpA, and >70-fold vs all others tested). Modeling the inhibitor-PtpA complexes explained the structure-activity relationships observed in vitro and revealed further possibilities for compound development.
MATERIALS