2zmc

Crystal structure of human mitotic checkpoint kinase Mps1 catalytic domain apo form

spinqualitylabelsall models 2zmc, resolution 3.14Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2zmc 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 3.14Å Ligands: 7PE Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function TTK_HUMAN Phosphorylates proteins on serine, threonine, and tyrosine. Probably associated with cell proliferation. Essential for chromosome alignment by enhancing AURKB activity (via direct CDCA8 phosphorylation) at the centromere, and for the mitotic checkpoint. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Chromosomal instability can result from defective control of checkpoints and is associated with malignant cell growth. Monopolar spindle 1 (Mps1) is a dual-specificity protein kinase that has important roles in the prevention of aneuploidy during the cell cycle and might therefore be a potential target for new therapeutic agents in the treatment of cancer. To gain insights into the molecular mechanism of Mps1 inhibition by small molecules, we determined the x-ray structure of Mps1, both alone and in complex with the ATP-competitive inhibitor SP600125. Mps1 adopts a classic protein kinase fold, with the inhibitor sitting in the ATP-binding site where it is stabilized by hydrophobic interactions. We identified a secondary pocket, not utilized by SP600125, which might be exploited for the rational design of specific Mps1 inhibitors. These structures provide important insights into the interaction of this protein kinase with small molecules and suggest potential mechanisms for Mps1 regulation. Crystal structure of the catalytic domain of the mitotic checkpoint kinase Mps1 in complex with SP600125.,Chu ML, Chavas LM, Douglas KT, Eyers PA, Tabernero L J Biol Chem. 2008 Aug 1;283(31):21495-500. Epub 2008 May 14. PMID:18480048 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Dual specificity protein kinase 3D structures

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