4yk9
From Proteopedia
(Difference between revisions)
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| - | '''Unreleased structure''' | ||
| - | + | ==Complex structure of BCL-XL and mutated BIM BH3 domain== | |
| + | <StructureSection load='4yk9' size='340' side='right' caption='[[4yk9]], [[Resolution|resolution]] 1.70Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4yk9]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4YK9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4YK9 FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene></td></tr> | ||
| + | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=AAR:ARGININEAMIDE'>AAR</scene>, <scene name='pdbligand=NLG:N-ACETYL-L-GLUTAMATE'>NLG</scene>, <scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene></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=4yk9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4yk9 OCA], [http://pdbe.org/4yk9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4yk9 RCSB], [http://www.ebi.ac.uk/pdbsum/4yk9 PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/B2CL1_MOUSE B2CL1_MOUSE]] 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:9390687</ref> Isoform Bcl-X(S) promotes apoptosis (By similarity).<ref>PMID:9390687</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | After antigen-driven expansion, the majority of T cells involved in an immune response die rapidly by apoptosis dependent on the Bcl-2 related proteins, Bim and Bax or Bak. The details of how these proteins are activated and interact are still unclear. The crystal structure of mouse Bcl-x(L) bound to a long helical fragment of Bim indicates that the structure of Bim is very different from proteins with a Bcl-2-like fold and may leave the BH3 region of Bim constitutively exposed. Based on the structural homology between Bcl-x(L) and Bax, we predicted that binding of Bim to Bax would require displacement of the Bax penultimate alpha helix. Consistent with this prediction, truncation of this short helix was required for Bim/Bax interaction and led to spontaneous activation of Bax. Our results suggest a way in which both Bim and Bax/Bak might be required for activated T cell apoptosis. | ||
| - | + | The structure of a Bcl-xL/Bim fragment complex: implications for Bim function.,Liu X, Dai S, Zhu Y, Marrack P, Kappler JW Immunity. 2003 Sep;19(3):341-52. PMID:14499110<ref>PMID:14499110</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | [[Category: Ha, N | + | <div class="pdbe-citations 4yk9" style="background-color:#fffaf0;"></div> |
| - | [[Category: Kim, J | + | == References == |
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Ha, N C]] | ||
| + | [[Category: Kim, J S]] | ||
| + | [[Category: Apoptosis]] | ||
| + | [[Category: Bcl-xl]] | ||
| + | [[Category: Bh3]] | ||
| + | [[Category: Bim]] | ||
| + | [[Category: Complex]] | ||
Revision as of 11:18, 12 May 2016
Complex structure of BCL-XL and mutated BIM BH3 domain
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