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3lbz

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{{STRUCTURE_3lbz| PDB=3lbz | SCENE= }}
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==Crystal Structure of the BCL6 BTB domain complexed with the small molecule inhibitor 79-6==
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===Crystal Structure of the BCL6 BTB domain complexed with the small molecule inhibitor 79-6===
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<StructureSection load='3lbz' size='340' side='right' caption='[[3lbz]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
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{{ABSTRACT_PUBMED_20385364}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3lbz]] 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=3LBZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3LBZ FirstGlance]. <br>
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==Disease==
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=Z88:N-[(4-BROMOPHENYL)SULFONYL]ACETAMIDE'>Z88</scene>, <scene name='pdbligand=Z89:(2R)-2-[(5Z)-5-(5-BROMO-2-OXO-1,2-DIHYDRO-3H-INDOL-3-YLIDENE)-4-OXO-2-THIOXO-1,3-THIAZOLIDIN-3-YL]BUTANEDIOIC+ACID'>Z89</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BCL5, BCL6, LAZ3, ZBTB27, ZNF51 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3lbz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3lbz OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3lbz RCSB], [http://www.ebi.ac.uk/pdbsum/3lbz PDBsum]</span></td></tr>
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</table>
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== Disease ==
[[http://www.uniprot.org/uniprot/BCL6_HUMAN BCL6_HUMAN]] Note=Chromosomal aberrations involving BCL6 may be a cause of B-cell non-Hodgkin lymphoma. Translocation t(3;14)(q27;q32); translocation t(3;22)(q27;q11) with immunoglobulin gene regions. Note=A chromosomal aberration involving BCL6 may be a cause of a form of B-cell leukemia. Translocation t(3;11)(q27;q23) with POU2AF1/OBF1. Note=A chromosomal aberration involving BCL6 may be a cause of lymphoma. Translocation t(3;4)(q27;p11) with ARHH/TTF.
[[http://www.uniprot.org/uniprot/BCL6_HUMAN BCL6_HUMAN]] Note=Chromosomal aberrations involving BCL6 may be a cause of B-cell non-Hodgkin lymphoma. Translocation t(3;14)(q27;q32); translocation t(3;22)(q27;q11) with immunoglobulin gene regions. Note=A chromosomal aberration involving BCL6 may be a cause of a form of B-cell leukemia. Translocation t(3;11)(q27;q23) with POU2AF1/OBF1. Note=A chromosomal aberration involving BCL6 may be a cause of lymphoma. Translocation t(3;4)(q27;p11) with ARHH/TTF.
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== Function ==
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[[http://www.uniprot.org/uniprot/BCL6_HUMAN BCL6_HUMAN]] Transcriptional repressor which is required for germinal center formation and antibody affinity maturation. Probably plays an important role in lymphomagenesis.<ref>PMID:9649500</ref> <ref>PMID:18280243</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/lb/3lbz_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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/chain_selection.php?pdb_ID=2ata 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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The BCL6 transcriptional repressor is the most frequently involved oncogene in diffuse large B cell lymphoma (DLBCL). We combined computer-aided drug design with functional assays to identify low-molecular-weight compounds that bind to the corepressor binding groove of the BCL6 BTB domain. One such compound disrupted BCL6/corepressor complexes in vitro and in vivo, and was observed by X-ray crystallography and NMR to bind the critical site within the BTB groove. This compound could induce expression of BCL6 target genes and kill BCL6-positive DLBCL cell lines. In xenotransplantation experiments, the compound was nontoxic and potently suppressed DLBCL tumors in vivo. The compound also killed primary DLBCLs from human patients.
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==Function==
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A small-molecule inhibitor of BCL6 kills DLBCL cells in vitro and in vivo.,Cerchietti LC, Ghetu AF, Zhu X, Da Silva GF, Zhong S, Matthews M, Bunting KL, Polo JM, Fares C, Arrowsmith CH, Yang SN, Garcia M, Coop A, Mackerell AD Jr, Prive GG, Melnick A Cancer Cell. 2010 Apr 13;17(4):400-11. PMID:20385364<ref>PMID:20385364</ref>
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[[http://www.uniprot.org/uniprot/BCL6_HUMAN BCL6_HUMAN]] Transcriptional repressor which is required for germinal center formation and antibody affinity maturation. Probably plays an important role in lymphomagenesis.<ref>PMID:9649500</ref><ref>PMID:18280243</ref>
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==About this Structure==
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[[3lbz]] 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=3LBZ OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<ref group="xtra">PMID:020385364</ref><references group="xtra"/><references/>
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</div>
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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: Ghetu, A F.]]
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[[Category: Ghetu, A F]]
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[[Category: Prive, G G.]]
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[[Category: Prive, G G]]
[[Category: Transcription]]
[[Category: Transcription]]
[[Category: Transcription regulation]]
[[Category: Transcription regulation]]

Revision as of 16:08, 18 December 2014

Crystal Structure of the BCL6 BTB domain complexed with the small molecule inhibitor 79-6

3lbz, resolution 2.30Å

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