5t1w | pdb_00005t1w

Aminomethyl-Derived Beta Secretase (BACE1) Inhibitors: Engaging Gly230 without an Anilide Functionality

spinqualitylabelsall models 5t1w, resolution 2.96Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5t1w is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: 74B, CL, DMS, GOL, IOD, NA Related: 5t1u Activity: Memapsin 2, with EC number 3.4.23.46 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 A growing subset of beta-secretase (BACE1) inhibitors for the treatment of Alzheimer's disease (AD) utilizes an anilide chemotype that engages a key residue (Gly230) in the BACE1 binding site. Although the anilide moiety affords excellent potency, it simultaneously introduces a third hydrogen bond donor that limits brain availability and provides a potential metabolic site leading to the formation of an aniline, a structural motif of prospective safety concern. We report herein an alternative aminomethyl linker that delivers similar potency and improved brain penetration relative to the amide moiety. Optimization of this series identified analogues with an excellent balance of ADME properties and potency; however, potential drug-drug interactions (DDI) were predicted based on CYP 2D6 affinities. Generation and analysis of key BACE1 and CYP 2D6 crystal structures identified strategies to obviate the DDI liability, leading to compound 16, which exhibits robust in vivo efficacy as a BACE1 inhibitor. Aminomethyl-Derived Beta Secretase (BACE1) Inhibitors: Engaging Gly230 without an Anilide Functionality.,Butler CR, Ogilvie K, Martinez-Alsina L, Barreiro G, Beck EM, Nolan CE, Atchison K, Benvenuti E, Buzon L, Doran S, Gonzales C, Helal CJ, Hou X, Hsu MH, Johnson EF, Lapham K, Lanyon L, Parris K, O'Neill BT, Riddell D, Robshaw A, Vajdos F, Brodney MA J Med Chem. 2017 Jan 12;60(1):386-402. doi: 10.1021/acs.jmedchem.6b01451. Epub, 2016 Dec 20. PMID:27997172 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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