4b4s
From Proteopedia
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| - | [[ | + | ==Crystal Structure of a pro-survival Bcl-2:Bim BH3 complex== |
| + | <StructureSection load='4b4s' size='340' side='right' caption='[[4b4s]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4b4s]] 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=4B4S OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4B4S FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene></td></tr> | ||
| + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2v6q|2v6q]], [[2vm6|2vm6]], [[2wh6|2wh6]]</td></tr> | ||
| + | <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=4b4s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4b4s OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4b4s RCSB], [http://www.ebi.ac.uk/pdbsum/4b4s PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | B-cell lymphoma-2 (Bcl-2) proteins mediate intrinsic-, or mitochondrial-, initiated apoptosis. We have investigated the structure and function of the least characterized Bcl-2 family member, Bcl-B, solving the crystal structure of a Bcl-B:Bim complex to 1.9 A resolution. Bcl-B is distinguished from other Bcl-2 family members through an insertion of an unstructured loop between helices alpha5 and alpha6. Probing Bcl-B interactions with Bcl-2 homology (BH)3 motifs using a combination of biophysical- and cell-based assays revealed a unique BH3-only protein binding profile. Bcl-B has high-affinity interactions with Bim and Bik only. Our results not only delineate the mode of action of Bcl-B but also complete our understanding of the specific interactions between BH3-only proteins and their prosurvival Bcl-2 counterparts. Notably, we conclude that Bim is the universal prosurvival antagonist as no other BH3-only protein binds all six prosurvival proteins and that Mcl-1 and Bcl-x(L) form a distinct prosurvival dyad. | ||
| - | + | The restricted binding repertoire of Bcl-B leaves Bim as the universal BH3-only prosurvival Bcl-2 protein antagonist.,Rautureau GJ, Yabal M, Yang H, Huang DC, Kvansakul M, Hinds MG Cell Death Dis. 2012 Dec 13;3:e443. doi: 10.1038/cddis.2012.178. PMID:23235460<ref>PMID:23235460</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | == References == | |
| - | + | <references/> | |
| - | == | + | __TOC__ |
| - | + | </StructureSection> | |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
| - | [[Category: Hinds, M G | + | [[Category: Hinds, M G]] |
| - | [[Category: Kvansakul, M | + | [[Category: Kvansakul, M]] |
| - | [[Category: Rautureau, G J.P | + | [[Category: Rautureau, G J.P]] |
[[Category: Apoptosis]] | [[Category: Apoptosis]] | ||
Revision as of 15:12, 9 December 2014
Crystal Structure of a pro-survival Bcl-2:Bim BH3 complex
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