Coding region
The coding region, a coding DNA sequence, is a portion of a DNA or RNA gene composed of exons and describes the structure of a protein molecule, which is the sum of the genomic fragments of the organism.
From the end of 5 'the encoding region is limited by the start codon, and from the 3' end it is the termination codon. In the mRNA, the coding region is surrounded by a 5 'untranslated area and a non-translated region 3', also belonging to the exons. CDS is the part of the RNA transcript that is translated into ribosomes.
Identification of an open reading frame via a DNA sequence is straightforward, but in the case of a coding sequence this is not the case as the cell translates only a subset of all open read frames.
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