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termination codon
(redirected from stop codon)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
termination codon
[tur′minā′shən]
a three-nucleotide sequence (UAA, UAG, or UGA) in messenger RNA that specifies the end of the sequence of amino acids in a polypeptide.

codon
a triplet in a chain of nucleic acids in mRNA that specifies the order in which amino acids are added. The codon triplet pairs with a sequence of three complementary nucleotides, called the anticodon, present in the anticodon arm of tRNA. Called also triplet. See also deoxyribonucleic acid.

start codon
see initiation codon.
stop c's
three codons, UAG, UAA and UGA, also referred to as amber, ochre and opal codons, in mRNA which terminate translation.
termination codon
see stop codons (above).


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The scientist also includes explanations of cell division and genetics detailed enough to discuss mRNA and stop codons.
BBD's mutation was shown to be a thymine mutated from a cytosine at the 2278 nucleotide location in the cDNA sequence causing a change from arginine to a stop codon at position 760 in the amino acid sequence.
The researchers changed the anticodon in their new tRNA to match up with the UAG stop codon instead of the codon for glutamine.
 
 
 
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