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Stop codon: A set of three adjacent bases in the DNA or their complementary bases in messenger RNA that specifies the end of a polypeptide chain.
The three stop codons (in messenger RNA) are UAA, UAG, and UGA. They are also called termination codons or nonsense codons.
U = uracil; A = adenine; G = guanine.
Library > Literature & Language > Dictionary n. Any of three codons, UAA, UAG, or UGA, that signal the termination of the synthesis of a protein. Also called chain ...
Explore a Stretch of Code Select any of the following terms to find out more about it and to reveal its location (highlighted in blue) in the code below.
Stop codons: the Good, the Bad, and the Ugly. Stop codons are a normal part of protein synthesis--they're the reason that all proteins don't go on 'forever'.
A few unicellular eukaryotes have been found that use one or two (of their three) STOP codons for amino acids instead. Nonstandard Amino Acids
The three stop codons have been given names: UAG is amber, UGA is opal, and UAA is ochre. Amber was named after its discoverer Harris Bernstein, whose last name means ...