initiation codon (AUG) Three-base sequence on the messenger RNA that codes for the amino acid methionine; the start command for protein synthesis.
Initiation codon. The mRNA sequence AUG, coding for methionine, which initiates translation of mRNA.
The translation initiation codon, which codes for methionine. The codon can also be present in the middle of a coding region.
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(See Initiation codon, Termination codon.) Coenzyme (cofactor). An organic molecule, such as a vitamin, that binds to an enzyme and is required for its catalytic activity. Cofactor. See Coenzyme. Colony.
ATG or AUG: The codon for methionine; the translation initiation codon. Usually, protein translation can only start at a methionine codon (although this codon may be found elsewhere within the protein sequence as well).
We intend to exploit gene predictions derived from genomic sequencing data to identify full-length cDNAs (from initiation codon to the poly adenylation site) for complete cDNA sequencing.
A sequence of DNA following an initiation codon that does not contain a stop codon. Detection of an open reading frame in DNA implies the presence of a gene that codes for a protein.
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Translation starts with a chain initiation codon (start codon). Unlike stop codons, the codon alone is not sufficient to begin the process. Nearby sequences and initiation factors are also required to start translation.
methionine The amino acid coded for by the initiation codon; all polypeptides begin with methionine, although post-translational reactions may remove it.
The sequence of DNA or RNA located between the start-code sequence (initiation codon) and the stop-code sequence (termination codon).
Operon
A set of genes transcribed under the control of an operator gene.
Proposed mechanism by which the eukaryotic ribosome recognizes the initiation region of an mRNA after binding the 5' capped end of it. The ribosome scans the mRNA for the initiation codon.
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A stretch of DNA which potentially codes for protein. A length of DNA not interrupted by stop codons. A sequence of in frame codons preceded by a translational initiation codon and terminated by a chain termination triplet.
 See also: Codon, DNA, Sequence, Protein, Gene
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