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8gym
From Proteopedia
(Difference between revisions)
(New page: '''Unreleased structure''' The entry 8gym is ON HOLD Authors: Description: Category: Unreleased Structures) |
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| - | '''Unreleased structure''' | ||
| - | + | ==Cryo-EM structure of Tetrahymena thermophila respiratory mega-complex MC IV2+(I+III2+II)2== | |
| + | <StructureSection load='8gym' size='340' side='right'caption='[[8gym]], [[Resolution|resolution]] 2.96Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[8gym]] is a 20 chain structure with sequence from [https://en.wikipedia.org/wiki/Tetrahymena_thermophila_SB210 Tetrahymena thermophila SB210]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8GYM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8GYM FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3PE:1,2-DIACYL-SN-GLYCERO-3-PHOSPHOETHANOLAMINE'>3PE</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=CDL:CARDIOLIPIN'>CDL</scene>, <scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene>, <scene name='pdbligand=F3S:FE3-S4+CLUSTER'>F3S</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=FMN:FLAVIN+MONONUCLEOTIDE'>FMN</scene>, <scene name='pdbligand=HEA:HEME-A'>HEA</scene>, <scene name='pdbligand=HEC:HEME+C'>HEC</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</scene>, <scene name='pdbligand=P5S:O-[(R)-{[(2R)-2,3-BIS(OCTADECANOYLOXY)PROPYL]OXY}(HYDROXY)PHOSPHORYL]-L-SERINE'>P5S</scene>, <scene name='pdbligand=PC1:1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE'>PC1</scene>, <scene name='pdbligand=PX2:1,2-DILAUROYL-SN-GLYCERO-3-PHOSPHATE'>PX2</scene>, <scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene>, <scene name='pdbligand=SF4:IRON/SULFUR+CLUSTER'>SF4</scene>, <scene name='pdbligand=T7X:PHOSPHATIDYLINOSITOL'>T7X</scene>, <scene name='pdbligand=TPO:PHOSPHOTHREONINE'>TPO</scene>, <scene name='pdbligand=U10:UBIQUINONE-10'>U10</scene>, <scene name='pdbligand=ZMP:S-[2-({N-[(2S)-2-HYDROXY-3,3-DIMETHYL-4-(PHOSPHONOOXY)BUTANOYL]-BETA-ALANYL}AMINO)ETHYL]+TETRADECANETHIOATE'>ZMP</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=8gym FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8gym OCA], [https://pdbe.org/8gym PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8gym RCSB], [https://www.ebi.ac.uk/pdbsum/8gym PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8gym ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/W7X3D6_TETTS W7X3D6_TETTS] Mitochondrial intermembrane chaperone that participates in the import and insertion of some multi-pass transmembrane proteins into the mitochondrial inner membrane. Also required for the transfer of beta-barrel precursors from the TOM complex to the sorting and assembly machinery (SAM complex) of the outer membrane. Acts as a chaperone-like protein that protects the hydrophobic precursors from aggregation and guide them through the mitochondrial intermembrane space.[RuleBase:RU367043] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Tetrahymena thermophila, a classic ciliate model organism, has been shown to possess tubular mitochondrial cristae and highly divergent electron transport chain involving four transmembrane protein complexes (I-IV). Here we report cryo-EM structures of its ~8 MDa megacomplex IV(2 )+ (I + III(2 )+ II)(2), as well as a ~ 10.6 MDa megacomplex (IV(2) + I + III(2 )+ II)(2) at lower resolution. In megacomplex IV(2 )+ (I + III(2 )+ II)(2), each CIV(2) protomer associates one copy of supercomplex I + III(2) and one copy of CII, forming a half ring-shaped architecture that adapts to the membrane curvature of mitochondrial cristae. Megacomplex (IV(2 )+ I + III(2 )+ II)(2) defines the relative position between neighbouring half rings and maintains the proximity between CIV(2) and CIII(2) cytochrome c binding sites. Our findings expand the current understanding of divergence in eukaryotic electron transport chain organization and how it is related to mitochondrial morphology. | ||
| - | + | Structures of Tetrahymena thermophila respiratory megacomplexes on the tubular mitochondrial cristae.,Han F, Hu Y, Wu M, He Z, Tian H, Zhou L Nat Commun. 2023 May 29;14(1):2542. doi: 10.1038/s41467-023-38158-5. PMID:37248254<ref>PMID:37248254</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 8gym" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Tetrahymena thermophila SB210]] | ||
| + | [[Category: Han FZ]] | ||
| + | [[Category: Hu YQ]] | ||
| + | [[Category: Wu MC]] | ||
| + | [[Category: Zhou L]] | ||
Current revision
Cryo-EM structure of Tetrahymena thermophila respiratory mega-complex MC IV2+(I+III2+II)2
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