A region
of a gene which IS transcribed into mRNA, becoming the 5' end of the Message,
but which does not contain protein coding sequence. The 5'-untranslated region
is the portion of the DNA starting from the cap site and extending to the base
just before the ATG translation initiation codon . While not
itself translated, this region may have sequences which alter the translation
efficiency of the mRNA, or which affect the stability of the mRNA.
If you know of any terms that have been omitted from this glossary that you feel would be useful to include, please send details to the Editorial Office at GenScript.