| Structural highlights
4obq is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Ligands: | , , |
| Related: | 4obo, 4obp |
| Gene: | HGK, KIAA0687, MAP4K4, NIK (HUMAN) |
| Activity: | Non-specific serine/threonine protein kinase, with EC number 2.7.11.1 |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[M4K4_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 PubMed
Mitogen-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
- ↑ Yao Z, Zhou G, Wang XS, Brown A, Diener K, Gan H, Tan TH. A novel human STE20-related protein kinase, HGK, that specifically activates the c-Jun N-terminal kinase signaling pathway. J Biol Chem. 1999 Jan 22;274(4):2118-25. PMID:9890973
- ↑ Kaneko S, Chen X, Lu P, Yao X, Wright TG, Rajurkar M, Kariya K, Mao J, Ip YT, Xu L. Smad inhibition by the Ste20 kinase Misshapen. Proc Natl Acad Sci U S A. 2011 Jul 5;108(27):11127-32. doi:, 10.1073/pnas.1104128108. Epub 2011 Jun 20. PMID:21690388 doi:http://dx.doi.org/10.1073/pnas.1104128108
- ↑ 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. Discovery of Selective 4-Amino-pyridopyrimidine Inhibitors of MAP4K4 Using Fragment-Based Lead Identification and Optimization. J Med Chem. 2014 Apr 9. PMID:24673130 doi:http://dx.doi.org/10.1021/jm500155b
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