3qqc: Difference between revisions
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==Crystal structure of archaeal Spt4/5 bound to the RNAP clamp domain== | |||
=== | <StructureSection load='3qqc' size='340' side='right' caption='[[3qqc]], [[Resolution|resolution]] 3.30Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3qqc]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3QQC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3QQC FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PF1563 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2261 Pyrococcus furiosus]), PF1990 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2261 Pyrococcus furiosus]), PF0255 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2261 Pyrococcus furiosus])</td></tr> | |||
<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=3qqc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3qqc OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3qqc RCSB], [http://www.ebi.ac.uk/pdbsum/3qqc PDBsum]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Related RNA polymerases (RNAPs) carry out cellular gene transcription in all three kingdoms of life. The universal conservation of the transcription machinery extends to a single RNAP-associated factor, Spt5 (or NusG in bacteria), which renders RNAP processive and may have arisen early to permit evolution of long genes. Spt5 associates with Spt4 to form the Spt4/5 heterodimer. Here, we present the crystal structure of archaeal Spt4/5 bound to the RNAP clamp domain, which forms one side of the RNAP active centre cleft. The structure revealed a conserved Spt5-RNAP interface and enabled modelling of complexes of Spt4/5 counterparts with RNAPs from all kingdoms of life, and of the complete yeast RNAP II elongation complex with bound Spt4/5. The N-terminal NGN domain of Spt5/NusG closes the RNAP active centre cleft to lock nucleic acids and render the elongation complex stable and processive. The C-terminal KOW1 domain is mobile, but its location is restricted to a region between the RNAP clamp and wall above the RNA exit tunnel, where it may interact with RNA and/or other factors. | |||
Architecture of the RNA polymerase-Spt4/5 complex and basis of universal transcription processivity.,Martinez-Rucobo FW, Sainsbury S, Cheung AC, Cramer P EMBO J. 2011 Mar 8. PMID:21386817<ref>PMID:21386817</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
==See Also== | ==See Also== | ||
*[[RNA polymerase|RNA polymerase]] | *[[RNA polymerase|RNA polymerase]] | ||
== References == | |||
== | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Pyrococcus furiosus]] | [[Category: Pyrococcus furiosus]] | ||
[[Category: Martinez-Rucobo, F W | [[Category: Martinez-Rucobo, F W]] | ||
[[Category: Chimera protein]] | [[Category: Chimera protein]] | ||
[[Category: Fusion protein]] | [[Category: Fusion protein]] | ||
[[Category: Multiprotein complex]] | [[Category: Multiprotein complex]] | ||
[[Category: Transcription]] | [[Category: Transcription]] | ||
Revision as of 10:23, 19 December 2014
Crystal structure of archaeal Spt4/5 bound to the RNAP clamp domain
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