RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.

Synonyms: RNA, Messenger, Polyadenylated, Polyadenylated Messenger RNA, Poly(A)+ RNA, Non Polyadenylated mRNA, mRNA, Non-Polyadenylated, mRNA, Poly(A) Tail, RNA, Polyadenylated, mRNA, Polyadenylated, Poly(A)+ mRNA, 0, Messenger RNA, RNA, Polyadenylated Messenger, mRNA, Non Polyadenylated, Polyadenylated RNA, Messenger RNA, Polyadenylated, Polyadenylated mRNA, Poly(A) RNA, RNA, Messenger, Non-Polyadenylated mRNA