User:ElNando888/Self-interacting sequences: Difference between revisions

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<p>== The idea ==</p>
<p>== The idea ==</p>
<p>In the future, EteRNA players will face the challenge of creating RNA sequences that can change shape by binding other RNAs rather than reacting to ligands like FMN or Theophylline.</p>
<p>In the future, EteRNA players will face the challenge of creating RNA [[sequence]]s that can change shape by binding other [[RNA]]s rather than reacting to [[ligand]]s like [[FMN]] or [[Theophylline]].</p>
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<p>A well-known interaction HIV TAR-TAR*</p>
<p>A well-known interaction HIV TAR-TAR*</p>
<p>PDB accession 1KIS.</p>
<p>[http://www.rcsb.org/pdb/explore.do?structureId=1kis PDB accession 1KIS].</p>
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<p>== The goal ==</p>
<p>== The goal ==</p>

Revision as of 19:00, 22 May 2013

(work in progress)

 

 

== The idea ==

In the future, EteRNA players will face the challenge of creating RNA sequences that can change shape by binding other RNAs rather than reacting to ligands like FMN or Theophylline.

 

A well-known interaction HIV TAR-TAR*

PDB accession 1KIS.

 

== The goal ==

Attempt to find out under which conditions, the hairpins form can be more stable than the MFE, and attempt to quantify the associated kcal bonus.

 

== Parameters for candidates ==

 

"Natural" folding (MFE) should

- not have the hairpin features

- not have the complementary hairpin sequences bound together

 

Constrained folding should

- have the hairpin features

- have as few free bases as possible in the portion inbetween (in an attempt to guarantee that the stems will coaxially stack, thereby nullifying risks of pseudoknot formation)

 

 

== Examples ==

=== Candidate 1 ===

<tbody> </tbody>
Sequence AAACAGUUGGCUUGAGCCCUGGGAGGCUCUGAGGCUGUUCCCAGACAGCUGAGGGUGGCCAUC
MFE
(Vienna 2.1.1) 
.......(((((...(((((.((..(.((((.((.....)))))))..)).))))))))))..
Constrained folding .......(((((..((((......))))((..((((((......))))))..))..)))))..

 

Pseudo-switch.png