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==Crystal structure of the Mcl-1:mNoxaB BH3 complex== | ==Crystal structure of the Mcl-1:mNoxaB BH3 complex== | ||
<StructureSection load='2nla' size='340' side='right' caption='[[2nla]], [[Resolution|resolution]] 2.80Å' scene=''> | <StructureSection load='2nla' size='340' side='right'caption='[[2nla]], [[Resolution|resolution]] 2.80Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2nla]] is a 2 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2nla]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human] and [https://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NLA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2NLA FirstGlance]. <br> | ||
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1wsx|1wsx]], [[2nl9|2nl9]]</td></tr> | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1wsx|1wsx]], [[2nl9|2nl9]]</div></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Mcl1 ([ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Mcl1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2nla FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2nla OCA], [https://pdbe.org/2nla PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2nla RCSB], [https://www.ebi.ac.uk/pdbsum/2nla PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2nla ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/MCL1_MOUSE MCL1_MOUSE]] Involved in the regulation of apoptosis versus cell survival, and in the maintenance of viability but not of proliferation. Mediates its effects by interactions with a number of other regulators of apoptosis. [[https://www.uniprot.org/uniprot/APR_MOUSE APR_MOUSE]] Promotes activation of caspases and apoptosis. Promotes mitochondrial membrane changes and efflux of apoptogenic proteins from the mitochondria. Contributes to p53/TP53-dependent apoptosis after radiation exposure. Promotes proteasomal degradation of MCL1. Competes with BIM/BCL2L11 for binding to MCL1 and can displace BIM/BCL2L11 from its binding site on MCL1 (By similarity). Competes with BAK1 for binding to MCL1 and can displace BAK1 from its binding site on MCL1.<ref>PMID:10807576</ref> <ref>PMID:15901672</ref> <ref>PMID:15694340</ref> <ref>PMID:16822983</ref> <ref>PMID:17389404</ref> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nl/2nla_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nl/2nla_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
| Line 29: | Line 29: | ||
</div> | </div> | ||
<div class="pdbe-citations 2nla" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 2nla" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[B-cell lymphoma proteins 3D structures|B-cell lymphoma proteins 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
| Line 34: | Line 37: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Human]] | [[Category: Human]] | ||
[[Category: Large Structures]] | |||
[[Category: Lk3 transgenic mice]] | [[Category: Lk3 transgenic mice]] | ||
[[Category: Colman, P M]] | [[Category: Colman, P M]] | ||
Revision as of 18:44, 8 June 2021
Crystal structure of the Mcl-1:mNoxaB BH3 complexCrystal structure of the Mcl-1:mNoxaB BH3 complex
Structural highlights
Function[MCL1_MOUSE] Involved in the regulation of apoptosis versus cell survival, and in the maintenance of viability but not of proliferation. Mediates its effects by interactions with a number of other regulators of apoptosis. [APR_MOUSE] Promotes activation of caspases and apoptosis. Promotes mitochondrial membrane changes and efflux of apoptogenic proteins from the mitochondria. Contributes to p53/TP53-dependent apoptosis after radiation exposure. Promotes proteasomal degradation of MCL1. Competes with BIM/BCL2L11 for binding to MCL1 and can displace BIM/BCL2L11 from its binding site on MCL1 (By similarity). Competes with BAK1 for binding to MCL1 and can displace BAK1 from its binding site on MCL1.[1] [2] [3] [4] [5] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedApoptosis is held in check by prosurvival proteins of the Bcl-2 family. The distantly related BH3-only proteins bind to and antagonize them, thereby promoting apoptosis. Whereas binding of the BH3-only protein Noxa to prosurvival Mcl-1 induces Mcl-1 degradation by the proteasome, binding of another BH3-only ligand, Bim, elevates Mcl-1 protein levels. We compared the three-dimensional structures of the complexes formed between BH3 peptides of both Bim and Noxa, and we show that a discrete C-terminal sequence of the Noxa BH3 is necessary to instigate Mcl-1 degradation. Structural insights into the degradation of Mcl-1 induced by BH3 domains.,Czabotar PE, Lee EF, van Delft MF, Day CL, Smith BJ, Huang DC, Fairlie WD, Hinds MG, Colman PM Proc Natl Acad Sci U S A. 2007 Apr 10;104(15):6217-22. Epub 2007 Mar 27. PMID:17389404[6] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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