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==THERMUS AQUATICUS CORE RNA POLYMERASE-RIFAMPICIN COMPLEX== | |||
<StructureSection load='1i6v' size='340' side='right'caption='[[1i6v]], [[Resolution|resolution]] 3.30Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1i6v]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1I6V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1I6V FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.3Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=RFP:RIFAMPICIN'>RFP</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=1i6v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1i6v OCA], [https://pdbe.org/1i6v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1i6v RCSB], [https://www.ebi.ac.uk/pdbsum/1i6v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1i6v ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/RPOA_THEAQ RPOA_THEAQ] | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/i6/1i6v_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1i6v ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Rifampicin (Rif) is one of the most potent and broad spectrum antibiotics against bacterial pathogens and is a key component of anti-tuberculosis therapy, stemming from its inhibition of the bacterial RNA polymerase (RNAP). We determined the crystal structure of Thermus aquaticus core RNAP complexed with Rif. The inhibitor binds in a pocket of the RNAP beta subunit deep within the DNA/RNA channel, but more than 12 A away from the active site. The structure, combined with biochemical results, explains the effects of Rif on RNAP function and indicates that the inhibitor acts by directly blocking the path of the elongating RNA when the transcript becomes 2 to 3 nt in length. | |||
Structural mechanism for rifampicin inhibition of bacterial rna polymerase.,Campbell EA, Korzheva N, Mustaev A, Murakami K, Nair S, Goldfarb A, Darst SA Cell. 2001 Mar 23;104(6):901-12. PMID:11290327<ref>PMID:11290327</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1i6v" style="background-color:#fffaf0;"></div> | |||
== | ==See Also== | ||
*[[RNA polymerase 3D structures|RNA polymerase 3D structures]] | |||
[ | == References == | ||
[[Category: | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Thermus aquaticus]] | [[Category: Thermus aquaticus]] | ||
[[Category: Campbell | [[Category: Campbell EA]] | ||
[[Category: Darst | [[Category: Darst SA]] | ||
[[Category: Goldfarb | [[Category: Goldfarb A]] | ||
[[Category: Korzheva | [[Category: Korzheva N]] | ||
[[Category: Murakami | [[Category: Murakami K]] | ||
[[Category: Mustaev | [[Category: Mustaev A]] | ||
Latest revision as of 09:44, 30 October 2024
THERMUS AQUATICUS CORE RNA POLYMERASE-RIFAMPICIN COMPLEXTHERMUS AQUATICUS CORE RNA POLYMERASE-RIFAMPICIN COMPLEX
Structural highlights
FunctionEvolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedRifampicin (Rif) is one of the most potent and broad spectrum antibiotics against bacterial pathogens and is a key component of anti-tuberculosis therapy, stemming from its inhibition of the bacterial RNA polymerase (RNAP). We determined the crystal structure of Thermus aquaticus core RNAP complexed with Rif. The inhibitor binds in a pocket of the RNAP beta subunit deep within the DNA/RNA channel, but more than 12 A away from the active site. The structure, combined with biochemical results, explains the effects of Rif on RNAP function and indicates that the inhibitor acts by directly blocking the path of the elongating RNA when the transcript becomes 2 to 3 nt in length. Structural mechanism for rifampicin inhibition of bacterial rna polymerase.,Campbell EA, Korzheva N, Mustaev A, Murakami K, Nair S, Goldfarb A, Darst SA Cell. 2001 Mar 23;104(6):901-12. PMID:11290327[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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