出典:Wikipedia
出典:『Wikipedia』 (2011/05/30 06:31 UTC 版)
In molecular genetics, an untranslated region (or UTR) refers to either of two sections on each side of a coding sequence on a strand of mRNA. If it is found on the 5' side, it is called the 5' UTR (or leader sequence), or if it is found on the 3' side, it is called the 3' UTR (or trailer sequence).