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mRNA is transcribed from DNA, carrying information for protein synthesis. Three consecutive nucleotides in mRNA encode an amino acid or a stop signal for protein synthesis (see Genetic Code). The trinucleotide is know as a codon.
Figure 3-E-3. The sequence relationship of DNA, mRNA and the encoded peptide . The sequence of mRNA is complementary to DNA's template strand, and thus the same as DNA's coding strand, except that T is replaced by U. Review Article: Curbing the nonsense: the activation and regulation of mRNA surveillance - Genes and Development, 2001.
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