7b93: Difference between revisions
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New page: '''Unreleased structure''' The entry 7b93 is ON HOLD until Paper Publication Authors: Description: Category: Unreleased Structures |
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The | ==Cryo-EM structure of mitochondrial complex I from Mus musculus inhibited by IACS-2858 at 3.0 A== | ||
<StructureSection load='7b93' size='340' side='right'caption='[[7b93]], [[Resolution|resolution]] 3.04Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[7b93]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7B93 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7B93 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.04Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2MR:N3,+N4-DIMETHYLARGININE'>2MR</scene>, <scene name='pdbligand=3PE:1,2-DIACYL-SN-GLYCERO-3-PHOSPHOETHANOLAMINE'>3PE</scene>, <scene name='pdbligand=AME:N-ACETYLMETHIONINE'>AME</scene>, <scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=AYA:N-ACETYLALANINE'>AYA</scene>, <scene name='pdbligand=CDL:CARDIOLIPIN'>CDL</scene>, <scene name='pdbligand=EHZ:~{S}-[2-[3-[[(2~{R})-3,3-dimethyl-2-oxidanyl-4-phosphonooxy-butanoyl]amino]propanoylamino]ethyl]+(3~{S})-3-oxidanyltetradecanethioate'>EHZ</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=FME:N-FORMYLMETHIONINE'>FME</scene>, <scene name='pdbligand=FMN:FLAVIN+MONONUCLEOTIDE'>FMN</scene>, <scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</scene>, <scene name='pdbligand=PC1:1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE'>PC1</scene>, <scene name='pdbligand=T2Q:1-[[3-(4-methylsulfonylpiperidin-1-yl)phenyl]methyl]-5-[3-[4-(trifluoromethyloxy)phenyl]-1,2,4-oxadiazol-5-yl]pyridin-2-one'>T2Q</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7b93 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7b93 OCA], [https://pdbe.org/7b93 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7b93 RCSB], [https://www.ebi.ac.uk/pdbsum/7b93 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7b93 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/NU3M_MOUSE NU3M_MOUSE] Core subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I) that is believed to belong to the minimal assembly required for catalysis. Complex I functions in the transfer of electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone (By similarity). | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Mitochondrial complex I (NADH:ubiquinone oxidoreductase), a major contributor of free energy for oxidative phosphorylation, is increasingly recognized as a promising drug target for ischemia-reperfusion injury, metabolic disorders, and various cancers. Several pharmacologically relevant but structurally unrelated small molecules have been identified as specific complex I inhibitors, but their modes of action remain unclear. Here, we present a 3.0-A resolution cryo-electron microscopy structure of mammalian complex I inhibited by a derivative of IACS-010759, which is currently in clinical development against cancers reliant on oxidative phosphorylation, revealing its unique cork-in-bottle mechanism of inhibition. We combine structural and kinetic analyses to deconvolute cross-species differences in inhibition and identify the structural motif of a "chain" of aromatic rings as a characteristic that promotes inhibition. Our findings provide insights into the importance of pi-stacking residues for inhibitor binding in the long substrate-binding channel in complex I and a guide for future biorational drug design. | |||
Cork-in-bottle mechanism of inhibitor binding to mammalian complex I.,Chung I, Serreli R, Cross JB, Di Francesco ME, Marszalek JR, Hirst J Sci Adv. 2021 May 14;7(20):eabg4000. doi: 10.1126/sciadv.abg4000. Print 2021 May. PMID:33990335<ref>PMID:33990335</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 7b93" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Mus musculus]] | |||
[[Category: Chung I]] | |||
[[Category: Hirst J]] | |||
Latest revision as of 09:26, 9 April 2025
Cryo-EM structure of mitochondrial complex I from Mus musculus inhibited by IACS-2858 at 3.0 A
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