3qkd

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[[Image:3qkd.jpg|left|200px]]
 
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==Crystal structure of Bcl-xL in complex with a Quinazoline sulfonamide inhibitor==
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The line below this paragraph, containing "STRUCTURE_3qkd", creates the "Structure Box" on the page.
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<StructureSection load='3qkd' size='340' side='right'caption='[[3qkd]], [[Resolution|resolution]] 2.02&Aring;' scene=''>
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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'>[[3qkd]] is a 2 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=3QKD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3QKD FirstGlance]. <br>
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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]] 2.02&#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=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HI0:(R)-N-(7-(4-((4-CHLOROBIPHENYL-2-YL)METHYL)PIPERAZIN-1-YL)QUINAZOLIN-4-YL)-4-(4-(DIMETHYLAMINO)-1-(PHENYLTHIO)BUTAN-2-YLAMINO)-3-NITROBENZENESULFONAMIDE'>HI0</scene></td></tr>
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{{STRUCTURE_3qkd| PDB=3qkd | 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=3qkd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3qkd OCA], [https://pdbe.org/3qkd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3qkd RCSB], [https://www.ebi.ac.uk/pdbsum/3qkd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3qkd ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/B2CL1_HUMAN B2CL1_HUMAN] Potent inhibitor of cell death. Inhibits activation of caspases (By similarity). Appears to regulate cell death by blocking the voltage-dependent anion channel (VDAC) by binding to it and preventing the release of the caspase activator, CYC1, from the mitochondrial membrane. Also acts as a regulator of G2 checkpoint and progression to cytokinesis during mitosis.<ref>PMID:19917720</ref> <ref>PMID:21840391</ref> Isoform Bcl-X(S) promotes apoptosis.<ref>PMID:19917720</ref> <ref>PMID:21840391</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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ABT-737 and ABT-263 are potent inhibitors of the BH3 antiapoptotic proteins, Bcl-x(L) and Bcl-2. This class of putative anticancer agents invariantly contains an acylsulfonamide core. We have designed and synthesized a series of novel quinazoline-based inhibitors of Bcl-2 and Bcl-x(L) that contain a heterocyclic alternative to the acylsulfonamide. These compounds exhibit submicromolar, mechanism-based activity in human small-cell lung carcinoma cell lines in the presence of 10% human serum. This comprises the first successful demonstration of a quinazoline sulfonamide core serving as an effective benzoylsulfonamide bioisostere. Additionally, these novel quinazolines comprise only the second known class of Bcl-2 family protein inhibitors to induce mechanism-based cell death.
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===Crystal structure of Bcl-xL in complex with a Quinazoline sulfonamide inhibitor===
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Quinazoline sulfonamides as dual binders of the proteins B-cell lymphoma 2 and B-cell lymphoma extra long with potent proapoptotic cell-based activity.,Sleebs BE, Czabotar PE, Fairbrother WJ, Fairlie WD, Flygare JA, Huang DC, Kersten WJ, Koehler MF, Lessene G, Lowes K, Parisot JP, Smith BJ, Smith ML, Souers AJ, Street IP, Yang H, Baell JB J Med Chem. 2011 Mar 24;54(6):1914-26. Epub 2011 Mar 2. PMID:21366295<ref>PMID:21366295</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 3qkd" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[B-cell lymphoma proteins 3D structures|B-cell lymphoma proteins 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 21366295 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_21366295}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[3qkd]] is a 2 chain structure with 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=3QKD OCA].
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==Reference==
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<ref group="xtra">PMID:21366295</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Czabotar, P E.]]
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[[Category: Large Structures]]
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[[Category: Smith, B J.]]
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[[Category: Czabotar PE]]
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[[Category: Smith BJ]]

Current revision

Crystal structure of Bcl-xL in complex with a Quinazoline sulfonamide inhibitor

PDB ID 3qkd

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