4c5d

Crystal structure of Bcl-xL in complex with benzoylurea compound (42)

spinqualitylabelsall models 4c5d, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4c5d 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: EDO, SO4, X0R Related: 4c52 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [B2CL1_HUMAN] Potent inhibitor of cell death. Inhibits activation of caspases (By similarity). Appears to regulate cell death by blocking the voltage-dependent anion channel (VDAC) by binding to it and preventing the release of the caspase activator, CYC1, from the mitochondrial membrane. Also acts as a regulator of G2 checkpoint and progression to cytokinesis during mitosis. Isoform Bcl-X(S) promotes apoptosis. Publication Abstract from PubMed The pro-survival BCL-2 proteins are attractive yet challenging targets for medicinal chemists. Their involvement in the initiation and progression of many, if not all, tumors makes them prime targets for developing new anti-cancer therapies. We present our approach based on de novo structure-based drug design. Using known structural information from complexes engaging opposing members of the BCL-2 family of proteins, we designed peptidomimetic compounds using a benzoylurea scaffold to reproduce key interactions between these proteins. A library stemming from the initial de novo designed scaffold led to the discovery of ligands with low micromolar potency (KD = 4 muM) and selectivity for BCL-XL. These compounds bind in the canonical BH3 binding groove in a binding mode distinct from previously known BCL-2 inhibitors. The results of our study provide insight into the design of a new class of antagonists targeting a challenging class of protein-protein interactions. De-Novo Designed Library of Benzoylureas as Inhibitors of BCL-XL: Synthesis, Structural and Biochemical Characterization.,Brady RM, Vom A, Roy MJ, Toovey N, Smith BJ, Moss RM, Hazis E, Huang DC, Parisot JP, Yang H, Street IP, Colman PM, Czabotar PE, Baell JB, Lessene G J Med Chem. 2014 Jan 23. PMID:24456288 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also B-cell lymphoma proteins 3D structures

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