1zc5: Difference between revisions

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[[Image:1zc5.png|left|200px]]
==Structure of the RNA signal essential for translational frameshifting in HIV-1==
<StructureSection load='1zc5' size='340' side='right' caption='[[1zc5]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1zc5]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZC5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZC5 FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1zc5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zc5 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1zc5 RCSB], [http://www.ebi.ac.uk/pdbsum/1zc5 PDBsum]</span></td></tr>
<table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Many pathogenic viruses use a programmed -1 translational frameshifting mechanism to regulate synthesis of their structural and enzymatic proteins. Frameshifting is vital for viral replication. A slippery sequence bound at the ribosomal A and P sites as well as a downstream stimulatory RNA structure are essential for frameshifting. Conflicting data have been reported concerning the structure of the downstream RNA signal in human immunodeficiency virus type 1 (HIV-1). Here, the solution structure of the HIV-1 frameshifting RNA signal was solved by heteronuclear NMR spectroscopy. This structure reveals a long hairpin fold with an internal three-nucleotide bulge. The internal loop introduces a bend between the lower and upper helical regions, a structural feature often seen in frameshifting pseudoknots. The NMR structure correlates with chemical probing data. The upper stem rich in conserved G-C Watson-Crick base-pairs is highly stable, whereas the bulge region and the lower stem are more flexible.


{{STRUCTURE_1zc5|  PDB=1zc5  |  SCENE=  }}
Structure of the RNA signal essential for translational frameshifting in HIV-1.,Gaudin C, Mazauric MH, Traikia M, Guittet E, Yoshizawa S, Fourmy D J Mol Biol. 2005 Jun 24;349(5):1024-35. PMID:15907937<ref>PMID:15907937</ref>


===Structure of the RNA signal essential for translational frameshifting in HIV-1===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_15907937}}
== References ==
 
<references/>
==About this Structure==
__TOC__
[[1zc5]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZC5 OCA].
</StructureSection>
 
==Reference==
<ref group="xtra">PMID:015907937</ref><references group="xtra"/>
[[Category: Fourmy, D.]]
[[Category: Fourmy, D.]]
[[Category: Gaudin, C.]]
[[Category: Gaudin, C.]]