3r2d: Difference between revisions

<StructureSection load='3r2d' size='340' side='right' caption='[[3r2d]], [[Resolution|resolution]] 2.20&Aring;' scene=''>

<table><tr><td colspan='2'>[[3r2d]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Aquifex_aeolicus Aquifex aeolicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3R2D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3R2D FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene></td></tr>

<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3r2c|3r2c]]</td></tr>

<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">aq_133, nusB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=63363 Aquifex aeolicus]), aq_008, NUSE, rpsJ ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=63363 Aquifex aeolicus])</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=3r2d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3r2d OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3r2d RCSB], [http://www.ebi.ac.uk/pdbsum/3r2d PDBsum]</span></td></tr>

== Publication Abstract from PubMed ==

Processive transcription antitermination requires the assembly of the complete antitermination complex, which is initiated by the formation of the ternary NusB-NusE-BoxA RNA complex. We have elucidated the crystal structure of this complex, demonstrating that the BoxA RNA is composed of 8 nt that are recognized by the NusB-NusE heterodimer. Functional biologic and biophysical data support the structural observations and establish the relative significance of key protein-protein and protein-RNA interactions. Further crystallographic investigation of a NusB-NusE-dsRNA complex reveals a heretofore unobserved dsRNA binding site contiguous with the BoxA binding site. We propose that the observed dsRNA represents BoxB RNA, as both single-stranded BoxA and double-stranded BoxB components are present in the classical lambda antitermination site. Combining these data with known interactions amongst antitermination factors suggests a specific model for the assembly of the complete antitermination complex.

 

Structural basis for RNA recognition by NusB and NusE in the initiation of transcription antitermination.,Stagno JR, Altieri AS, Bubunenko M, Tarasov SG, Li J, Court DL, Byrd RA, Ji X Nucleic Acids Res. 2011 Jun 7. PMID:21652641<ref>PMID:21652641</ref>

 

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

[[Category: Ji, X]]

[[Category: Stagno, J R]]

[[Category: Cross species nusb-nuse-rna interaction]]

[[Category: Transcription-rna complex]]