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2rpk

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[[Image:2rpk.png|left|200px]]
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==Solution Structure of Domain II of the Positive Polarity CCHMVD Hammerhead Ribozyme==
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<StructureSection load='2rpk' size='340' side='right' caption='[[2rpk]], [[NMR_Ensembles_of_Models | 1 NMR models]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2rpk]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2RPK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2RPK FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2ro2|2ro2]]</td></tr>
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<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=2rpk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2rpk OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2rpk RCSB], [http://www.ebi.ac.uk/pdbsum/2rpk PDBsum]</span></td></tr>
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<table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Loop-loop tertiary interactions play a key role in the folding and catalytic activity of natural hammerhead ribozymes. Using a combination of NMR spectroscopy, site-directed mutagenesis and kinetic and infectivity analyses, we have examined the structure and function of loops 1 and 2 of the (+) and (-) hammerheads of chrysanthemum chlorotic mottle viroid RNA. In both hammerheads, loop 1 is a heptanucleotide hairpin loop containing an exposed U at its 5' side and an extrahelical U at its 3'-side critical for the catalytic activity of the ribozyme in vitro and for viroid infectivity in vivo, whereas loop 2 has a key opened A at its 3'-side. These structural features promote a specific loop-loop interaction motif across the major groove. The essential features of this tertiary structure element, base pairing between the 5' U of loop 1 and the 3' A of loop 2, and interaction of the extrahelical pyrimidine of loop 1 with loop 2, are likely shared by a significant fraction of natural hammerheads.
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{{STRUCTURE_2rpk| PDB=2rpk | SCENE= }}
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Structure-function analysis of the ribozymes of chrysanthemum chlorotic mottle viroid: a loop-loop interaction motif conserved in most natural hammerheads.,Dufour D, de la Pena M, Gago S, Flores R, Gallego J Nucleic Acids Res. 2008 Nov 29. PMID:19043070<ref>PMID:19043070</ref>
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===Solution Structure of Domain II of the Positive Polarity CCHMVD Hammerhead Ribozyme===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_19043070}}
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==About this Structure==
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[[2rpk]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2RPK OCA].
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==See Also==
==See Also==
*[[Ribozyme|Ribozyme]]
*[[Ribozyme|Ribozyme]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:019043070</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Dufour, D.]]
[[Category: Dufour, D.]]
[[Category: Flores, R.]]
[[Category: Flores, R.]]

Revision as of 00:57, 2 October 2014

Solution Structure of Domain II of the Positive Polarity CCHMVD Hammerhead Ribozyme

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