2va6

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[[Image:2va6.jpg|left|200px]]
 
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==X-ray crystal structure of beta secretase complexed with compound 24==
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The line below this paragraph, containing "STRUCTURE_2va6", creates the "Structure Box" on the page.
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<StructureSection load='2va6' size='340' side='right'caption='[[2va6]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2va6]] 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=2VA6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VA6 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=H24:(6S)-2-AMINO-6-(3-METHOXYBIPHENYL-3-YL)-3,6-DIMETHYL-5,6-DIHYDROPYRIMIDIN-4(3H)-ONE'>H24</scene>, <scene name='pdbligand=IOD:IODIDE+ION'>IOD</scene></td></tr>
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{{STRUCTURE_2va6| PDB=2va6 | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2va6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2va6 OCA], [https://pdbe.org/2va6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2va6 RCSB], [https://www.ebi.ac.uk/pdbsum/2va6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2va6 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[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>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/va/2va6_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2va6 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Fragment-based lead generation has led to the discovery of a novel series of cyclic amidine-based inhibitors of beta-secretase (BACE-1). Initial fragment hits with an isocytosine core having millimolar potency were identified via NMR affinity screening. Structure-guided evolution of these fragments using X-ray crystallography together with potency determination using surface plasmon resonance and functional enzyme inhibition assays afforded micromolar inhibitors. Similarity searching around the isocytosine core led to the identification of a related series of inhibitors, the dihydroisocytosines. By leveraging the knowledge of the ligand-BACE-1 recognition features generated from the isocytosines, the dihydroisocytosines were efficiently optimized to submicromolar potency. Compound 29, with an IC50 of 80 nM, a ligand efficiency of 0.37, and cellular activity of 470 nM, emerged as the lead structure for future optimization.
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'''X-RAY CRYSTAL STRUCTURE OF BETA SECRETASE COMPLEXED WITH COMPOUND 24'''
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Application of fragment-based lead generation to the discovery of novel, cyclic amidine beta-secretase inhibitors with nanomolar potency, cellular activity, and high ligand efficiency.,Edwards PD, Albert JS, Sylvester M, Aharony D, Andisik D, Callaghan O, Campbell JB, Carr RA, Chessari G, Congreve M, Frederickson M, Folmer RH, Geschwindner S, Koether G, Kolmodin K, Krumrine J, Mauger RC, Murray CW, Olsson LL, Patel S, Spear N, Tian G J Med Chem. 2007 Nov 29;50(24):5912-25. Epub 2007 Nov 7. PMID:17985862<ref>PMID:17985862</ref>
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==Overview==
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Fragment-based lead generation has led to the discovery of a novel series of cyclic amidine-based inhibitors of beta-secretase (BACE-1). Initial fragment hits with an isocytosine core having millimolar potency were identified via NMR affinity screening. Structure-guided evolution of these fragments using X-ray crystallography together with potency determination using surface plasmon resonance and functional enzyme inhibition assays afforded micromolar inhibitors. Similarity searching around the isocytosine core led to the identification of a related series of inhibitors, the dihydroisocytosines. By leveraging the knowledge of the ligand-BACE-1 recognition features generated from the isocytosines, the dihydroisocytosines were efficiently optimized to submicromolar potency. Compound 29, with an IC50 of 80 nM, a ligand efficiency of 0.37, and cellular activity of 470 nM, emerged as the lead structure for future optimization.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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2VA6 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2VA6 OCA].
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</div>
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<div class="pdbe-citations 2va6" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Application of fragment-based lead generation to the discovery of novel, cyclic amidine beta-secretase inhibitors with nanomolar potency, cellular activity, and high ligand efficiency., Edwards PD, Albert JS, Sylvester M, Aharony D, Andisik D, Callaghan O, Campbell JB, Carr RA, Chessari G, Congreve M, Frederickson M, Folmer RH, Geschwindner S, Koether G, Kolmodin K, Krumrine J, Mauger RC, Murray CW, Olsson LL, Patel S, Spear N, Tian G, J Med Chem. 2007 Nov 29;50(24):5912-25. Epub 2007 Nov 7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17985862 17985862]
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*[[Beta secretase 3D structures|Beta secretase 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Memapsin 2]]
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[[Category: Large Structures]]
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[[Category: Single protein]]
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[[Category: Aharony D]]
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[[Category: Aharony, D.]]
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[[Category: Albert JS]]
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[[Category: Albert, J S.]]
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[[Category: Andisik D]]
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[[Category: Andisik, D.]]
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[[Category: Callaghan O]]
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[[Category: Callaghan, O.]]
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[[Category: Campbell JB]]
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[[Category: Campbell, J B.]]
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[[Category: Carr RA]]
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[[Category: Carr, R A.]]
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[[Category: Chessari G]]
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[[Category: Chessari, G.]]
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[[Category: Congreve M]]
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[[Category: Congreve, M.]]
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[[Category: Edwards PD]]
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[[Category: Edwards, P D.]]
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[[Category: Folmer RHA]]
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[[Category: Folmer, R H.A.]]
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[[Category: Frederickson M]]
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[[Category: Frederickson, M.]]
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[[Category: Geschwindner S]]
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[[Category: Geschwindner, S.]]
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[[Category: Koether G]]
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[[Category: Koether, G.]]
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[[Category: Kolmodin K]]
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[[Category: Kolmodin, K.]]
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[[Category: Krumrine J]]
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[[Category: Krumrine, J.]]
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[[Category: Mauger RC]]
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[[Category: Mauger, R C.]]
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[[Category: Murray CW]]
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[[Category: Murray, C W.]]
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[[Category: Olsson LL]]
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[[Category: Olsson, L.]]
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[[Category: Patel S]]
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[[Category: Patel, S.]]
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[[Category: Spear N]]
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[[Category: Spear, N.]]
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[[Category: Sylvester M]]
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[[Category: Sylvester, M.]]
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[[Category: Tian G]]
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[[Category: Tian, G.]]
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[[Category: Alternative splicing]]
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[[Category: Alzheimer's disease]]
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[[Category: Aspartic protease]]
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[[Category: Aspartyl protease]]
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[[Category: Base]]
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[[Category: Beta-secretase]]
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[[Category: Glycoprotein]]
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[[Category: Hydrolase]]
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[[Category: Memapsin 2]]
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[[Category: Membrane]]
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[[Category: Protease]]
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[[Category: Transmembrane]]
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[[Category: Zymogen]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 18:28:31 2008''
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Current revision

X-ray crystal structure of beta secretase complexed with compound 24

PDB ID 2va6

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