View source for 5kr8


==(4~{S},6~{S})-4-[2,4-bis(fluoranyl)phenyl]-6-(3,5-dimethyl-1,2-oxazol-4-yl)-4-methyl-5,6-dihydro-1,3-thiazin-2-amine (compound 5) bound to BACE1==
<StructureSection load='5kr8' size='340' side='right'caption='[[5kr8]], [[Resolution|resolution]] 2.12&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5kr8]] 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=5KR8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5KR8 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]] 2.118&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=6WE:(4~{S},6~{S})-4-[2,4-BIS(FLUORANYL)PHENYL]-6-(3,5-DIMETHYL-1,2-OXAZOL-4-YL)-4-METHYL-5,6-DIHYDRO-1,3-THIAZIN-2-AMINE'>6WE</scene>, <scene name='pdbligand=IOD:IODIDE+ION'>IOD</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=5kr8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5kr8 OCA], [https://pdbe.org/5kr8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5kr8 RCSB], [https://www.ebi.ac.uk/pdbsum/5kr8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5kr8 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 ==
Truncation of the S3 substituent of the biaryl aminothiazine 2, a potent BACE1 inhibitor, led to a low molecular weight aminothiazine 5 with moderate activity. Despite its moderate activity, compound 5 demonstrated significant brain Abeta reduction in rodents. The metabolic instability of 5 was overcome by the replacement of the 6-dimethylisoxazole, a metabolic soft spot, with a pyrimidine ring. Thus, truncation of the S3 substituent represents a viable approach to the discovery of orally bioavailable, brain-penetrant BACE1 inhibitors.

Discovery of S3-Truncated, C-6 Heteroaryl Substituted Aminothiazine beta-Site APP Cleaving Enzyme-1 (BACE1) Inhibitors.,Wu YJ, Guernon J, Shi J, Marcin L, Higgins M, Rajamani R, Muckelbauer J, Lewis H, Chang C, Camac D, Toyn JH, Ahlijanian MK, Albright CF, Macor JE, Thompson LA J Med Chem. 2016 Sep 7. PMID:27559936<ref>PMID:27559936</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5kr8" style="background-color:#fffaf0;"></div>

==See Also==
*[[Beta secretase 3D structures|Beta secretase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Lewis HA]]
[[Category: Rajamani R]]
[[Category: Thompson LA]]
[[Category: Wu YJ]]