View source for 4x2l


==Crystal structure of human BACE-1 bound to Compound 6==
<StructureSection load='4x2l' size='340' side='right'caption='[[4x2l]], [[Resolution|resolution]] 2.55&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4x2l]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4X2L OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4X2L FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.55&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3WP:(4S)-4-(2,4-DIFLUOROPHENYL)-4-METHYL-5,6-DIHYDRO-4H-1,3-THIAZIN-2-AMINE'>3WP</scene>, <scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=IOD:IODIDE+ION'>IOD</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4x2l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4x2l OCA], [https://pdbe.org/4x2l PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4x2l RCSB], [https://www.ebi.ac.uk/pdbsum/4x2l PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4x2l ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/BACE1_HUMAN 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.<ref>PMID:10677483</ref> <ref>PMID:20354142</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The identification of centrally efficacious beta-secretase (BACE1) inhibitors for the treatment of Alzheimer's disease (AD) has historically been thwarted by an inability to maintain alignment of potency, brain availability, and desired ADME properties. In this paper, we describe a series of truncated, fused thioamidines that are efficiently selective in garnering BACE1 activity without simultaneously inhibiting the closely related Cathepsin D or negatively impacting brain penetration and ADME alignment, as exemplified by 36. Oral administration of these inhibitors exhibit robust brain availability and are efficacious in lowering central Abeta levels in mouse and dog. In addition, chronic treatment in aged PS1/APP mice effects a decrease in the number and size of Abeta-derived plaques. Most importantly, evaluation of 36 in a two-week exploratory toxicology study revealed no accumulation of autofluorescent material in retinal pigment epithelium or histology findings in the eye, issues observed with earlier BACE1 inhibitors.

Discovery of a Series of Efficient, Centrally Efficacious BACE1 Inhibitors through Structure-Based Drug Design.,Butler CR, Brodney MA, Beck EM, Barreiro G, Nolan CE, Pan F, Vajdos FF, Parris K, Varghese AH, Helal CJ, Lira R, Doran SD, Riddell D, Buzon LM, Dutra JK, Martinez-Alsina LA, Ogilvie K, Murray JC, Young JM, Atchison K, Robshaw A, Gonzales C, Wang J, Zhang Y, O'Neill BT J Med Chem. 2015 Feb 19. PMID:25695670<ref>PMID:25695670</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4x2l" style="background-color:#fffaf0;"></div>

==See Also==
*[[Beta secretase 3D structures|Beta secretase 3D structures]]
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Parris K]]
[[Category: Vajdos FF]]