4cga

Human choline kinase a1 in complex with compound 5

spinqualitylabelsall models 4cga, resolution 1.74Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4cga is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.74Å Ligands: QLW Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function CHKA_HUMAN Has a key role in phospholipid biosynthesis and may contribute to tumor cell growth. Catalyzes the first step in phosphatidylcholine biosynthesis. Contributes to phosphatidylethanolamine biosynthesis. Phosphorylates choline and ethanolamine. Has higher activity with choline. Publication Abstract from PubMed Human choline kinase alpha (CKalpha) is a validated drug target for the treatment of cancer. In recent years, a large number of CK inhibitors have been synthesized, and one of them is currently being evaluated in Phase I clinical trials as a treatment for solid tumors. Here we have evaluated a new series of asymmetrical biscationic CK inhibitors by means of enzymatic, crystallographic, and antitumor studies. We demonstrate that one of these structures adopts a completely new binding mode not observed before inducing the aperture of an adjacent binding site. This compound shows antiproliferative and apoptotic effects on cancer cells through activation of caspase-3. Therefore, this study not only provides fruitful insights into the design of more efficient compounds that may target different regions in CKalpha1 but also explains how these compounds induce apoptosis in cancer cells. Discovery of a New Binding Site on Human Choline Kinase alpha1: Design, Synthesis, Crystallographic Studies, and Biological Evaluation of Asymmetrical Bispyridinium Derivatives.,Rubio-Ruiz B, Figuerola-Conchas A, Ramos-Torrecillas J, Capitan-Canadas F, Rios-Marco P, Carrasco MP, Gallo MA, Espinosa A, Marco C, Ruiz C, Entrena A, Hurtado-Guerrero R, Conejo-Garcia A J Med Chem. 2014 Jan 14. PMID:24387243 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Choline kinase 3D structures

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