Aptamer

Aptamers (from the Latin aptus - fit, and Greek meros - part) are oligonucleic acid or peptide molecules that bind to a specific target molecule. Aptamers are usually created by selecting them from a large random sequence pool, but natural aptamers also exist in riboswitches. Aptamers can be used for both basic research and clinical purposes as ma...
Found on http://en.wikipedia.org/wiki/Aptamer

aptamer

<molecular biology> A double stranded DNA or single stranded RNA molecule that bind to specific molecular targets, such as a protein or metabolite. ... (13 Oct 1997) ...
Found on http://www.encyclo.co.uk/local/20973
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