6c9y

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==Cryo-EM structure of E. coli RNAP sigma70 holoenzyme==
==Cryo-EM structure of E. coli RNAP sigma70 holoenzyme==
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<StructureSection load='6c9y' size='340' side='right' caption='[[6c9y]], [[Resolution|resolution]] 4.25&Aring;' scene=''>
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<SX load='6c9y' size='340' side='right' viewer='molstar' caption='[[6c9y]], [[Resolution|resolution]] 4.25&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[6c9y]] is a 6 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6C9Y OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6C9Y FirstGlance]. <br>
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<table><tr><td colspan='2'>[[6c9y]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6C9Y OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6C9Y FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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">Electron Microscopy, [[Resolution|Resolution]] 4.25&#8491;</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/DNA-directed_RNA_polymerase DNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.6 2.7.7.6] </span></td></tr>
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<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=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6c9y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6c9y OCA], [http://pdbe.org/6c9y PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6c9y RCSB], [http://www.ebi.ac.uk/pdbsum/6c9y PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6c9y ProSAT]</span></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=6c9y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6c9y OCA], [https://pdbe.org/6c9y PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6c9y RCSB], [https://www.ebi.ac.uk/pdbsum/6c9y PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6c9y ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/RPOZ_ECOLI RPOZ_ECOLI]] Promotes RNA polymerase assembly. Latches the N- and C-terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits.[HAMAP-Rule:MF_00366] [[http://www.uniprot.org/uniprot/RPOA_ECOLI RPOA_ECOLI]] DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. This subunit plays an important role in subunit assembly since its dimerization is the first step in the sequential assembly of subunits to form the holoenzyme.[HAMAP-Rule:MF_00059] [[http://www.uniprot.org/uniprot/RPOC_ECOLI RPOC_ECOLI]] DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.[HAMAP-Rule:MF_01322] [[http://www.uniprot.org/uniprot/RPOB_ECOLI RPOB_ECOLI]] DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.[HAMAP-Rule:MF_01321] [[http://www.uniprot.org/uniprot/RPOD_ECOLI RPOD_ECOLI]] Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This is the primary sigma factor of this bacterium.
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[https://www.uniprot.org/uniprot/RPOC_ECOLI RPOC_ECOLI] DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.[HAMAP-Rule:MF_01322]
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==See Also==
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*[[RNA polymerase 3D structures|RNA polymerase 3D structures]]
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*[[Sigma factor 3D structures|Sigma factor 3D structures]]
__TOC__
__TOC__
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</StructureSection>
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</SX>
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[[Category: DNA-directed RNA polymerase]]
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[[Category: Escherichia coli K-12]]
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[[Category: Jiang, W]]
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[[Category: Large Structures]]
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[[Category: Li, K]]
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[[Category: Jiang W]]
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[[Category: Murakami, K S]]
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[[Category: Li K]]
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[[Category: Narayanan, A]]
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[[Category: Murakami KS]]
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[[Category: Qayyum, M Z]]
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[[Category: Narayanan A]]
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[[Category: Vago, F]]
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[[Category: Qayyum MZ]]
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[[Category: Yenool, D]]
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[[Category: Vago F]]
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[[Category: Escherichia coli]]
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[[Category: Yenool D]]
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[[Category: Rna polymerase]]
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[[Category: Transcription]]
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Current revision

Cryo-EM structure of E. coli RNAP sigma70 holoenzyme

6c9y, resolution 4.25Å

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