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codon |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson | 0.45 sec. |
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codon /co·don/ (ko´don) a series of three adjacent bases in one polynucleotide chain of a DNA or RNA molecule, which codes for a specific amino acid.
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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? Mentioned in | ? References in periodicals archive | |
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Amyloid protein of Gerstmann-Straussler-Scheinker disease (Indiana kindred) is an 11 kd fragment of prion protein with an N-terminal glycine at codon 58. Biologists have long held that swapping one codon for another doesn't change the resulting protein's structure, as long as both codons instruct the machinery to insert the same amino acid. The Sec residue in selenoproteins as GSH-Px and SeP is co-translationally incorporated via a predefined UGA codon, which has a specific covalent binding capacity. |
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