4obp | pdb_00004obp
MAP4K4 in complex with inhibitor (compound 29), 6-(2-FLUOROPYRIDIN-4-YL)PYRIDO[3,2-D]PYRIMIDIN-4-AMINE
Structural highlights
FunctionM4K4_HUMAN Serine/threonine kinase that may play a role in the response to environmental stress and cytokines such as TNF-alpha. Appears to act upstream of the JUN N-terminal pathway. Phosphorylates SMAD1 on Thr-322.[1] [2] Publication Abstract from PubMedMitogen-activated protein kinase kinase kinase kinase 4 (MAP4K4) is a serine/threonine kinase implicated in the regulation of many biological processes. A fragment-based lead discovery approach was used to generate potent and selective MAP4K4 inhibitors. The fragment hit pursued in this article had excellent ligand efficiency (LE), an important attribute for subsequent successful optimization into drug-like lead compounds. The optimization efforts eventually led us to focus on the pyridopyrimidine series, from which 6-(2-fluoropyridin-4-yl)pyrido[3,2-d]pyrimidin-4-amine (29) was identified. This compound had low nanomolar potency, excellent kinase selectivity, and good in vivo exposure, and demonstrated in vivo pharmacodynamic effects in a human tumor xenograft model. Discovery of Selective 4-Amino-pyridopyrimidine Inhibitors of MAP4K4 Using Fragment-Based Lead Identification and Optimization.,Crawford TD, Ndubaku CO, Chen H, Boggs JW, Bravo BJ, Delatorre K, Giannetti AM, Gould SE, Harris SF, Magnuson SR, McNamara E, Murray LJ, Nonomiya J, Sambrone A, Schmidt S, Smyczek T, Stanley M, Vitorino P, Wang L, West K, Wu P, Ye W J Med Chem. 2014 Apr 9. PMID:24673130[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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