6w68

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==The structure of V98A S172A Keap1-BTB domain==
==The structure of V98A S172A Keap1-BTB domain==
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<StructureSection load='6w68' size='340' side='right'caption='[[6w68]]' scene=''>
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<StructureSection load='6w68' size='340' side='right'caption='[[6w68]], [[Resolution|resolution]] 2.55&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6W68 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6W68 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[6w68]] is a 1 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=6W68 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6W68 FirstGlance]. <br>
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</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6w68 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6w68 OCA], [http://pdbe.org/6w68 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6w68 RCSB], [http://www.ebi.ac.uk/pdbsum/6w68 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6w68 ProSAT]</span></td></tr>
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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]] 2.55&#8491;</td></tr>
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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=6w68 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6w68 OCA], [https://pdbe.org/6w68 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6w68 RCSB], [https://www.ebi.ac.uk/pdbsum/6w68 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6w68 ProSAT]</span></td></tr>
</table>
</table>
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== Function ==
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[https://www.uniprot.org/uniprot/KEAP1_HUMAN KEAP1_HUMAN]
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Most quality control pathways target misfolded proteins to prevent toxic aggregation and neurodegeneration(1). Dimerization quality control further improves proteostasis by eliminating complexes of aberrant composition(2), but how it detects incorrect subunits remains unknown. Here we provide structural insight into target selection by SCF-FBXL17, a dimerization-quality-control E3 ligase that ubiquitylates and helps to degrade inactive heterodimers of BTB proteins while sparing functional homodimers. We find that SCF-FBXL17 disrupts aberrant BTB dimers that fail to stabilize an intermolecular beta-sheet around a highly divergent beta-strand of the BTB domain. Complex dissociation allows SCF-FBXL17 to wrap around a single BTB domain, resulting in robust ubiquitylation. SCF-FBXL17 therefore probes both shape and complementarity of BTB domains, a mechanism that is well suited to establish quality control of complex composition for recurrent interaction modules.
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Structural basis for dimerization quality control.,Mena EL, Jevtic P, Greber BJ, Gee CL, Lew BG, Akopian D, Nogales E, Kuriyan J, Rape M Nature. 2020 Aug 19. pii: 10.1038/s41586-020-2636-7. doi:, 10.1038/s41586-020-2636-7. PMID:32814905<ref>PMID:32814905</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 6w68" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[Kelch-like protein 3D structures|Kelch-like protein 3D structures]]
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== References ==
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<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Gee CL]]
[[Category: Gee CL]]

Current revision

The structure of V98A S172A Keap1-BTB domain

PDB ID 6w68

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