4l02 | pdb_00004l02
Crystal Structure of SphK1 with inhibitor
Structural highlights
FunctionSPHK1_HUMAN Catalyzes the phosphorylation of sphingosine to form sphingosine 1-phosphate (SPP), a lipid mediator with both intra- and extracellular functions. Also acts on D-erythro-sphingosine and to a lesser extent sphinganine, but not other lipids, such as D,L-threo-dihydrosphingosine, N,N-dimethylsphingosine, diacylglycerol, ceramide, or phosphatidylinositol.[1] Publication Abstract from PubMedSphingosine-1-phosphate (S1P) signaling plays a vital role in mitogenesis, cell migration and angiogenesis. Sphingosine kinases (SphKs) catalyze a key step in sphingomyelin metabolism that leads to the production of S1P. There are two isoforms of SphK and observations made with SphK deficient mice show the two isoforms can compensate for each other's loss. Thus, inhibition of both isoforms is likely required to block SphK dependent angiogenesis. A structure based approach was used to design and synthesize a series of SphK inhibitors resulting in the identification of the first potent inhibitors of both isoforms of human SphK. Additionally, to our knowledge, this series of inhibitors contains the only sufficiently potent inhibitors of murine SphK1 with suitable physico-chemical properties to pharmacologically interrogate the role of SphK1 in rodent models and to reproduce the phenotype of SphK1 (-/-) mice. Structure guided design of a series of sphingosine kinase (SphK) inhibitors.,Gustin DJ, Li Y, Brown ML, Min X, Schmitt MJ, Wanska M, Wang X, Connors R, Johnstone S, Cardozo M, Cheng AC, Jeffries S, Franks B, Li S, Shen S, Wong M, Wesche H, Xu G, Carlson TJ, Plant M, Morgenstern K, Rex K, Schmitt J, Coxon A, Walker N, Kayser F, Wang Z Bioorg Med Chem Lett. 2013 Jun 20. pii: S0960-894X(13)00739-7. doi:, 10.1016/j.bmcl.2013.06.030. PMID:23845219[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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