7d5a

Crystal Structure of BACE1 in complex with N-{3-[(9S)-7-amino-2,2-difluoro-9-(prop-1-yn-1-yl)-6-oxa-8-azaspiro[3.5]non-7-en-9-yl]-4-fluorophenyl}-5-cyanopyridine-2-carboxamide

spinqualitylabelsall models 7d5a, resolution 2.20Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7d5a 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 2.2Å Ligands: GOL, GX6, IOD Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function BACE1_HUMAN Responsible for the proteolytic processing of the amyloid precursor protein (APP). Cleaves at the N-terminus of the A-beta peptide sequence, between residues 671 and 672 of APP, leads to the generation and extracellular release of beta-cleaved soluble APP, and a corresponding cell-associated C-terminal fragment which is later released by gamma-secretase. Publication Abstract from PubMed BACE1 is an attractive target for disease-modifying treatment of Alzheimer's disease. BACE2, having high homology around the catalytic site, poses a critical challenge to identifying selective BACE1 inhibitors. Recent evidence indicated that BACE2 has various roles in peripheral tissues and the brain, and therefore, the chronic use of nonselective inhibitors may cause side effects derived from BACE2 inhibition. Crystallographic analysis of the nonselective inhibitor verubecestat identified explicit water molecules with different levels of free energy in the S2' pocket. Structure-based design targeting them enabled the identification of propynyl oxazine 3 with improved selectivity. Further optimization efforts led to the discovery of compound 6 with high selectivity. The cocrystal structures of 7, a close analogue of 6, bound to BACE1 and BACE2 confirmed that one of the explicit water molecules is displaced by the propynyl group, suggesting that the difference in the relative water displacement cost may contribute to the improved selectivity. Structure-Based Approaches to Improving Selectivity through Utilizing Explicit Water Molecules: Discovery of Selective beta-Secretase (BACE1) Inhibitors over BACE2.,Fujimoto K, Yoshida S, Tadano G, Asada N, Fuchino K, Suzuki S, Matsuoka E, Yamamoto T, Yamamoto S, Ando S, Kanegawa N, Tonomura Y, Ito H, Moechars D, Rombouts FJR, Gijsen HJM, Kusakabe KI J Med Chem. 2021 Mar 25;64(6):3075-3085. doi: 10.1021/acs.jmedchem.0c01858. Epub , 2021 Mar 15. PMID:33719429 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Beta secretase 3D structures

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