3o0u
Cathepsin K covalently bound to a cyano-pyrimidine inhibitor with improved selectivity over hERG
Structural highlights
DiseaseCATK_HUMAN Defects in CTSK are the cause of pycnodysostosis (PKND) [MIM:265800. PKND is an autosomal recessive osteochondrodysplasia characterized by osteosclerosis and short stature.[1] [2] [3] [4] FunctionCATK_HUMAN Closely involved in osteoclastic bone resorption and may participate partially in the disorder of bone remodeling. Displays potent endoprotease activity against fibrinogen at acid pH. May play an important role in extracellular matrix degradation. Publication Abstract from PubMedSeveral structure-guided optimisation strategies were explored in order to improve the hERG selectivity profile of cathepsin K inhibitor 1, whilst maintaining its otherwise excellent in vitro and in vivo profile. Ultimately, attenuation of clogP and pK(a) properties proved a successful approach and led to the discovery of a potent analogue 23, which, in addition to the desired selectivity over hERG (>1000-fold), displayed a highly attractive overall profile. Optimisation of 2-cyano-pyrimidine inhibitors of cathepsin K: Improving selectivity over hERG.,Rankovic Z, Cai J, Kerr J, Fradera X, Robinson J, Mistry A, Finlay W, McGarry G, Andrews F, Caulfield W, Cumming I, Dempster M, Waller J, Arbuckle W, Anderson M, Martin I, Mitchell A, Long C, Baugh M, Westwood P, Kinghorn E, Jones P, Uitdehaag JC, van Zeeland M, Potin D, Saniere L, Fouquet A, Chevallier F, Deronzier H, Dorleans C, Nicolai E Bioorg Med Chem Lett. 2010 Aug 24. PMID:20843687[5] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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