2q11: Difference between revisions

New page: left|200px<br /> <applet load="2q11" size="450" color="white" frame="true" align="right" spinBox="true" caption="2q11, resolution 2.4Å" /> '''Structure of BACE co...
 
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[[Image:2q11.gif|left|200px]]<br />
<applet load="2q11" size="450" color="white" frame="true" align="right" spinBox="true"
caption="2q11, resolution 2.4&Aring;" />
'''Structure of BACE complexed to compound 1'''<br />


==Overview==
==Structure of BACE complexed to compound 1==
A new aspartic protease inhibitory chemotype bearing a, 2-amino-3,4-dihydroquinazoline ring was identified by high-throughput, screening for the inhibition of BACE-1. X-ray crystallography revealed, that the exocyclic amino group participated in a hydrogen bonding array, with the two catalytic aspartic acids of BACE-1 (Asp(32), Asp(228))., BACE-1 inhibitory potency was increased (0.9 microM to 11 nM K(i)) by, substitution into the unoccupied S(1)' pocket.
<StructureSection load='2q11' size='340' side='right'caption='[[2q11]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2q11]] is a 3 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=2Q11 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2Q11 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]] 2.4&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=XX4:3-(2-AMINO-6-BENZOYLQUINAZOLIN-3(4H)-YL)-N-CYCLOHEXYL-N-METHYLPROPANAMIDE'>XX4</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=2q11 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2q11 OCA], [https://pdbe.org/2q11 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2q11 RCSB], [https://www.ebi.ac.uk/pdbsum/2q11 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2q11 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>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/q1/2q11_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=2q11 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
A new aspartic protease inhibitory chemotype bearing a 2-amino-3,4-dihydroquinazoline ring was identified by high-throughput screening for the inhibition of BACE-1. X-ray crystallography revealed that the exocyclic amino group participated in a hydrogen bonding array with the two catalytic aspartic acids of BACE-1 (Asp(32), Asp(228)). BACE-1 inhibitory potency was increased (0.9 microM to 11 nM K(i)) by substitution into the unoccupied S(1)' pocket.


==About this Structure==
2-Amino-3,4-dihydroquinazolines as inhibitors of BACE-1 (beta-site APP cleaving enzyme): Use of structure based design to convert a micromolar hit into a nanomolar lead.,Baxter EW, Conway KA, Kennis L, Bischoff F, Mercken MH, Winter HL, Reynolds CH, Tounge BA, Luo C, Scott MK, Huang Y, Braeken M, Pieters SM, Berthelot DJ, Masure S, Bruinzeel WD, Jordan AD, Parker MH, Boyd RE, Qu J, Alexander RS, Brenneman DE, Reitz AB J Med Chem. 2007 Sep 6;50(18):4261-4. Epub 2007 Aug 8. PMID:17685503<ref>PMID:17685503</ref>
2Q11 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with XX4 as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/Memapsin_2 Memapsin 2], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.23.46 3.4.23.46] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2Q11 OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
2-Amino-3,4-dihydroquinazolines as inhibitors of BACE-1 (beta-Site APP cleaving enzyme): Use of structure based design to convert a micromolar hit into a nanomolar lead., Baxter EW, Conway KA, Kennis L, Bischoff F, Mercken MH, Winter HL, Reynolds CH, Tounge BA, Luo C, Scott MK, Huang Y, Braeken M, Pieters SM, Berthelot DJ, Masure S, Bruinzeel WD, Jordan AD, Parker MH, Boyd RE, Qu J, Alexander RS, Brenneman DE, Reitz AB, J Med Chem. 2007 Sep 6;50(18):4261-4. Epub 2007 Aug 8. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17685503 17685503]
</div>
<div class="pdbe-citations 2q11" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Beta secretase 3D structures|Beta secretase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Memapsin 2]]
[[Category: Large Structures]]
[[Category: Single protein]]
[[Category: Sharff AJ]]
[[Category: Sharff, A.J.]]
[[Category: XX4]]
[[Category: bace inhibitor complex]]
[[Category: hydrolase]]
 
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