3L5E

Structure of BACE Bound to SCH736062

Summary for 3L5E

• Entry DOI: 10.2210/pdb3l5e/pdb
• Related: 3L58 3L59 3L5B 3L5C 3L5D 3L5F
• Descriptor: Beta-secretase 1, D(-)-TARTARIC ACID, (4S)-1-(4-{[(2Z,4R)-4-(2-cyclohexylethyl)-4-(cyclohexylmethyl)-2-imino-5-oxoimidazolidin-1-yl]methyl}benzyl)-4-propylimidazolidin-2-one, ... (4 entities in total)
• Functional Keywords: bace1, alzheimers, alternative splicing, aspartyl protease, disulfide bond, endoplasmic reticulum, endosome, glycoprotein, golgi apparatus, hydrolase, membrane, polymorphism, protease, transmembrane, zymogen
• Biological source: Homo sapiens (human)
• Cellular location: Membrane; Single-pass type I membrane protein: P56817
• Total number of polymer chains: 2
• Total formula weight: 94021.64

Authors

Strickland, C.,Zhu, Z. (deposition date: 2009-12-21, release date: 2010-02-16, Last modification date: 2024-10-30)

Primary citation

Zhu, Z.,Sun, Z.Y.,Ye, Y.,Voigt, J.,Strickland, C.,Smith, E.M.,Cumming, J.,Wang, L.,Wong, J.,Wang, Y.S.,Wyss, D.F.,Chen, X.,Kuvelkar, R.,Kennedy, M.E.,Favreau, L.,Parker, E.,McKittrick, B.A.,Stamford, A.,Czarniecki, M.,Greenlee, W.,Hunter, J.C.
Discovery of Cyclic Acylguanidines as Highly Potent and Selective beta-Site Amyloid Cleaving Enzyme (BACE) Inhibitors: Part I-Inhibitor Design and Validation
J.Med.Chem., 53:951-965, 2010

PubMed Abstract: A number of novel amidine containing heterocycles were designed to reproduce the unique interaction pattern, revealed by X-ray crystallography, between the BACE-1 catalytic diad and a weak NMR screening hit (3), with special attention paid to maintaining the appropriate basicity and limiting the number of H-bonding donors of these scaffolds. The iminohydantoin cores (10 and 23) were examined first and found to interact with the catalytic diad in one of two binding modes (A and B), each with the iminohydantoin core flipped 180 degrees in relation to the other. The amidine structural motif within each core forms a bidentate interaction with a different aspartic acid of the catalytic diad. Both modes reproduced a highly conserved interaction pattern between the inhibitors and the catalytic aspartates, as revealed by 3. Potent iminohydantoin BACE-1 inhibitors have been obtained, validating the molecular design as aspartyl protease catalytic site inhibitors. Brain penetrant small molecule BACE inhibitors with high ligand efficiencies have been discovered, enabling multiple strategies for further development of these inhibitors into highly potent, selective and in vivo efficacious BACE inhibitors.

PubMed: 20043696
DOI: 10.1021/jm901408p

Experimental method

X-RAY DIFFRACTION (1.53 Å)