3wyx

CRYSTAL STRUCTURE OF HUMAN MPS1 CATALYTIC DOMAIN IN COMPLEX WITH 6-((3-(cyanomethoxy)-4-(1-methyl-1H-pyrazol-4-yl)phenyl)amino)-2-(cyclohexylamino)nicotinonitrile

spinqualitylabelsall models 3wyx, resolution 2.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3wyx 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 2.9Å Ligands: IOD, O38 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. Publication Abstract from PubMed Mps1, also known as TTK, is a dual-specificity kinase that regulates the spindle assembly check point. Increased expression levels of Mps1 are observed in cancer cells, and the expression levels correlate well with tumor grade. Such evidence points to selective inhibition of Mps1 as an attractive strategy for cancer therapeutics. Starting from an aminopyridine-based lead 3a that binds to a flipped-peptide conformation at the hinge region in Mps1, elaboration of the aminopyridine scaffold at the 2- and 6-positions led to the discovery of 19c that exhibited no significant inhibition for 287 kinases as well as improved cellular Mps1 and antiproliferative activities in A549 lung carcinoma cells (cellular Mps1 IC50=5.3nM, A549 IC50=26nM). A clear correlation between cellular Mps1 and antiproliferative IC50 values indicated that the antiproliferative activity observed in A549 cells would be responsible for the cellular inhibition of Mps1. The X-ray structure of 19c in complex with Mps1 revealed that this compound retains the ability to bind to the peptide flip conformation. Finally, comparative analysis of the X-ray structures of 19c, a deamino analogue 33, and a known Mps1 inhibitor bound to Mps1 provided insights into the unique binding mode at the hinge region. A unique hinge binder of extremely selective aminopyridine-based Mps1 (TTK) kinase inhibitors with cellular activity.,Kusakabe KI, Ide N, Daigo Y, Itoh T, Yamamoto T, Kojima E, Mitsuoka Y, Tadano G, Tagashira S, Higashino K, Okano Y, Sato Y, Inoue M, Iguchi M, Kanazawa T, Ishioka Y, Dohi K, Kido Y, Sakamoto S, Ando S, Maeda M, Higaki M, Yoshizawa H, Murai H, Nakamura Y Bioorg Med Chem. 2015 Mar 4. pii: S0968-0896(15)00146-7. doi:, 10.1016/j.bmc.2015.02.042. PMID:25801152 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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