Bulge

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Revision as of 21:10, 26 July 2013 by Omei (talk | contribs) (Reworded to get the full meaning into the first sentence. Otherwise, the dictionary bot yields an incorrect definition.)

5-nucleotides bulge.

A bulge is the structure formed where two stacks meet, with only unpaired bases on one side of the junction and no extra bases on the other side of the junction.  This differs from an internal loop, where unpaired bases are found on both sides.

Nomenclature

Bulges are typically described by the number of unpaired bases. In the illustration to the right, 5 bases are unpaired.