OCA at 19:53, 7 September 2022

OCA — Wed, 07 Sep 2022 19:53:09 GMT

←Older revision		Revision as of 19:53, 7 September 2022
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-	====	+	==cryo-EM structure of HK022 putRNA-less E.coli RNA polymerase elongation complex==
-	<StructureSection load='7xug' size='340' side='right'caption='[[7xug]]' scene=''>	+	<StructureSection load='7xug' size='340' side='right'caption='[[7xug]], [[Resolution\|resolution]] 3.57Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id= OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol= FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[7xug]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12] and [https://en.wikipedia.org/wiki/Escherichia_virus_HK022 Escherichia virus HK022]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7XUG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7XUG FirstGlance]. <br>
-	</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=7xug FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7xug OCA], [https://pdbe.org/7xug PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7xug RCSB], [https://www.ebi.ac.uk/pdbsum/7xug PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7xug ProSAT]</span></td></tr>	+	</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=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=7xug FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7xug OCA], [https://pdbe.org/7xug PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7xug RCSB], [https://www.ebi.ac.uk/pdbsum/7xug PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7xug ProSAT]</span></td></tr>
	</table>		</table>
		+	== Function ==
		+	[[https://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]
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Transcription, in which RNA polymerases (RNAPs) produce RNA from DNA, is the first step of gene expression. As such, it is highly regulated either by trans-elements like protein factors and/or by cis-elements like specific sequences on the DNA. Lambdoid phage HK022 contains a cis-element, put, which suppresses pausing and termination during transcription of the early phage genes. The putRNA transcript solely performs the anti-pausing/termination activities by interacting directly with the E.coli RNAP elongation complex (EC) by an unknown structural mechanism. In this study, we reconstituted putRNA-associated ECs and determined the structures using cryo-electron microscopy. The determined structures of putRNA-associated EC, putRNA-absent EC, and sigma(70)-bound EC suggest that the putRNA interaction with the EC counteracts swiveling, a conformational change previously identified to promote pausing and sigma(70) might modulate putRNA folding via sigma(70)-dependent pausing during elongation.
		+
		+	Structural basis of transcriptional regulation by a nascent RNA element, HK022 putRNA.,Hwang S, Olinares PDB, Lee J, Kim J, Chait BT, King RA, Kang JY Nat Commun. 2022 Aug 15;13(1):4668. doi: 10.1038/s41467-022-32315-y. PMID:35970830<ref>PMID:35970830</ref>
		+
		+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
		+	</div>
		+	<div class="pdbe-citations 7xug" style="background-color:#fffaf0;"></div>
		+	== References ==
		+	<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
		+	[[Category: Escherichia coli K-12]]
		+	[[Category: Escherichia virus HK022]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: ~~Z-disk~~]]	+	[[Category: Hwang S]]
		+	[[Category: Kang JY]]

OCA at 05:02, 10 August 2022

OCA — Wed, 10 Aug 2022 05:02:33 GMT

←Older revision		Revision as of 05:02, 10 August 2022
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-	'''Unreleased structure'''

-	~~The entry~~ 7xug ~~is ON HOLD until Paper Publication~~	+	====
-		+	<StructureSection load='7xug' size='340' side='right'caption='[[7xug]]' scene=''>
-	~~Authors~~:	+	== Structural highlights ==
-		+	<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id= OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol= FirstGlance]. <br>
-	~~Description~~:	+	</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=7xug FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7xug OCA], [https://pdbe.org/7xug PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7xug RCSB], [https://www.ebi.ac.uk/pdbsum/7xug PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7xug ProSAT]</span></td></tr>
-	[[Category: ~~Unreleased~~ Structures]]	+	</table>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Large Structures]]
		+	[[Category: Z-disk]]

OCA at 14:54, 6 July 2022

OCA — Wed, 06 Jul 2022 14:54:29 GMT

←Older revision		Revision as of 14:54, 6 July 2022
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	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 7xug is ON HOLD	+	The entry 7xug is ON HOLD until Paper Publication

	Authors:		Authors:

OCA: Protected "7xug" [edit=sysop:move=sysop]

OCA — Wed, 25 May 2022 06:49:05 GMT

Protected "7xug" [edit=sysop:move=sysop]

←Older revision

Revision as of 06:49, 25 May 2022

OCA: New page: '''Unreleased structure''' The entry 7xug is ON HOLD Authors: Description: Category: Unreleased Structures

OCA — Wed, 25 May 2022 06:49:04 GMT

New page: '''Unreleased structure''' The entry 7xug is ON HOLD Authors: Description: Category: Unreleased Structures

New page

'''Unreleased structure'''

The entry 7xug is ON HOLD

Authors:

Description:
[[Category: Unreleased Structures]]

7xug - Revision history

OCA at 19:53, 7 September 2022

OCA at 05:02, 10 August 2022

OCA at 14:54, 6 July 2022

OCA: Protected "7xug" [edit=sysop:move=sysop]

OCA: New page: '''Unreleased structure''' The entry 7xug is ON HOLD Authors: Description: Category: Unreleased Structures