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“A structure based flexible search method for motifs in RNA” Isana ...

“A structure based flexible search method for motifs in RNA” Isana ...

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The tool - STRMS<br />

(Structural RNA Motif Search):<br />

� Input: Secondary <strong>structure</strong> of the query, <strong>in</strong>clud<strong>in</strong>g local sequence<br />

and <strong>structure</strong> constra<strong>in</strong>ts, and a target sequence database.<br />

� Output: All occurrences of the query <strong>in</strong> the target, ranked by their<br />

similarity to the query [<strong>in</strong> html file].<br />

� The tool is <strong>flexible</strong> and takes <strong>in</strong>to account a large number of<br />

sequence options.<br />

� Our approach comb<strong>in</strong>es:<br />

� pre-fold<strong>in</strong>g with MFOLD (Zuker, 2003)<br />

� RNA pattern match<strong>in</strong>g algorithm [O(mn)] <strong>based</strong> on subtree<br />

homeomorphism <strong>for</strong> ordered, rooted trees.

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