Help:Protein coding sequences/Glossary

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Codon

A set of three nucleotides that encodes a single amino acid.

Genetic code

The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells. The code defines a mapping between tri-nucleotide sequences, called codons, and amino acids. A triplet codon in a nucleic acid sequence usually specifies a single amino acid.

Start codon

A set of three nucleotides that indicates the beginning of translation of an amino acid sequence. In BioBrick parts, the start codon ATG is the most commonly used start codon.

Stop codon

A set of three nucleotides that indicates the end of translation of an amino acid sequence. Many BioBrick protein coding regions use a double stop codon TAATAA.