6m6b
From Proteopedia
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(New page: '''Unreleased structure''' The entry 6m6b is ON HOLD Authors: Description: Category: Unreleased Structures) |
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| - | '''Unreleased structure''' | ||
| - | + | ==Cryo-EM structure of Thermus thermophilus Mfd in complex with RNA polymerase and ATP-gamma-S== | |
| + | <StructureSection load='6m6b' size='340' side='right'caption='[[6m6b]], [[Resolution|resolution]] 4.10Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[6m6b]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus], [https://en.wikipedia.org/wiki/Thermus_thermophilus_HB27 Thermus thermophilus HB27] and [https://en.wikipedia.org/wiki/Thermus_thermophilus_HB8 Thermus thermophilus HB8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6M6B OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6M6B 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]] 4.1Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AGS:PHOSPHOTHIOPHOSPHORIC+ACID-ADENYLATE+ESTER'>AGS</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=6m6b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6m6b OCA], [https://pdbe.org/6m6b PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6m6b RCSB], [https://www.ebi.ac.uk/pdbsum/6m6b PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6m6b ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/RPOB_THET8 RPOB_THET8] DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Mfd-dependent transcription termination plays an important role in transcription-coupled DNA repair, transcription-replication conflict resolution, and antimicrobial resistance development. Despite extensive studies, the molecular mechanism of Mfd-dependent transcription termination in bacteria remains unclear, with several long-standing puzzles. How Mfd is activated by stalled RNA polymerase (RNAP) and how activated Mfd translocates along the DNA are unknown. Here, we report the single-particle cryo-electron microscopy structures of T. thermophilus Mfd-RNAP complex with and without ATPgammaS. The structures reveal that Mfd undergoes profound conformational changes upon activation, contacts the RNAP beta1 domain and its clamp, and pries open the RNAP clamp. These structures provide a foundation for future studies aimed at dissecting the precise mechanism of Mfd-dependent transcription termination and pave the way for rational drug design targeting Mfd for the purpose of tackling the antimicrobial resistance crisis. | ||
| - | + | Structural basis of Mfd-dependent transcription termination.,Shi J, Wen A, Zhao M, Jin S, You L, Shi Y, Dong S, Hua X, Zhang Y, Feng Y Nucleic Acids Res. 2020 Nov 18;48(20):11762-11772. doi: 10.1093/nar/gkaa904. PMID:33068413<ref>PMID:33068413</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 6m6b" style="background-color:#fffaf0;"></div> | ||
| + | |||
| + | ==See Also== | ||
| + | *[[RNA polymerase 3D structures|RNA polymerase 3D structures]] | ||
| + | *[[Transcription-repair coupling factor 3D structures|Transcription-repair coupling factor 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Thermus thermophilus]] | ||
| + | [[Category: Thermus thermophilus HB27]] | ||
| + | [[Category: Thermus thermophilus HB8]] | ||
| + | [[Category: Feng Y]] | ||
| + | [[Category: Shi J]] | ||
| + | [[Category: Wen A]] | ||
Current revision
Cryo-EM structure of Thermus thermophilus Mfd in complex with RNA polymerase and ATP-gamma-S
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