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Messenger RNA
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In molecular biology, messenger ribonucleic acid (mRNA) is a single-stranded molecule of RNA that corresponds to the genetic sequence of a gene, and is read by a ribosome in the process of synthesizing a protein.
Universal structure of eukaryotic mRNA, showing the structure of the 5' and 3' UTRs.
Universal structure of eukaryotic mRNA, showing the structure of the 5' and 3' UTRs.
mRNA circularisation and regulation
mRNA circularisation and regulation
Overview of mRNA decay pathways in the different life domains.
Overview of mRNA decay pathways in the different life domains.
Primary transcript
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A primary transcript is the single-stranded ribonucleic acid (RNA) product synthesized by transcription of DNA, and processed to yield various mature RNA products such as mRNAs, tRNAs, and rRNAs. The primary transcripts designated to be mRNAs are modified in preparation for translation. For example, a precursor mRNA (pre-mRNA) is a type of primary transcript that becomes a messenger RNA (mRNA) after processing.
Micrograph of gene transcription of ribosomal RNA illustrating the growing primary transcripts
Transcription of DNA by RNA polymerase to produce primary transcript
Transcription of DNA by RNA polymerase to produce primary transcript