mature_transcript
mRNA
An mRNA does not contain introns as it is a processed_transcript. The equivalent kind of primary_transcript is protein_coding_primary_transcript (SO:0000120) which may contain introns. This term is mapped to MGED. Do not obsolete without consulting MGED ontology.
messenger RNA
http://www.gencodegenes.org/gencode_biotypes.html
Messenger RNA is the intermediate molecule between DNA and protein. It includes UTR and coding sequences. It does not contain introns.
INSDC_feature:mRNA
protein_coding_transcript
http://en.wikipedia.org/wiki/MRNA
sequence
SO:0000234