First codon of a messenger RNA translated by a ribosome
Start codon (blue circle) of the human mitochondrial DNA MT-ATP6 gene. For each nucleotide triplet (square brackets), the corresponding amino acid is given (one-letter code), either in the +1 reading frame for MT-ATP8 (in red) or in the +3 frame for MT-ATP6 (in blue). In this genomic region, the two genes overlap.
The start codon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome. The start codon always codes for methionine in eukaryotes and archaea and a N-formylmethionine (fMet) in bacteria, mitochondria and plastids.
The start codon is often preceded by a 5' untranslated region (5' UTR). In prokaryotes this includes the ribosome binding site.
The startcodon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome. The startcodon always codes for methionine in eukaryotes...
methionine—can serve as a startcodon and, along with sequences such as an initiation factor, initiates translation. In rare instances, startcodons in the standard...
In molecular biology, a stop codon (or termination codon) is a codon (nucleotide triplet within messenger RNA) that signals the termination of the translation...
within genetic material (DNA or RNA sequences of nucleotide triplets, or codons) into proteins. Translation is accomplished by the ribosome, which links...
reading frames are defined as spans of DNA sequence between the start and stop codons. Usually, this is considered within a studied region of a prokaryotic...
scan past the first AUG site and start initiation at a downstream AUG codon. The ribosome assembles on the startcodon (AUG), located within the Kozak...
machinery of a cell called the ribosome. Complementation of a 3-nucleotide codon in a messenger RNA (mRNA) by a 3-nucleotide anticodon of the tRNA results...
anti-codon stem loop. For each coding triplet (codon) in the messenger RNA, there is a unique transfer RNA that must have the exact anti-codon match...
startcodon. This process is defined as either cap-dependent, in which the ribosome binds initially at the 5' cap and then travels to the stop codon,...
corresponding to the mRNA codon, in the case of the startcodon, this is the amino acid methionine. The next codon (adjacent to the startcodon) is then bound by...
to discriminate against AUG. The methionine codon AUG is also the most common startcodon. A "Start" codon is message for a ribosome that signals the initiation...
stabilize the formation of ribosomal preinitiation complexes around the startcodon and are an important input for post-transcription gene regulation. Several...
the 5'UTR to locate a startcodon to commence elongation. Sometimes, the scanning ribosome bypasses the initial AUG startcodon and begins translation...
termination codon (a stop was lost), resulting in abnormal extension of a protein's carboxyl terminus. Start-gain creates an AUG startcodon upstream of...
Steyr AUG, an assault rifle AUG, the most common startcodon, the three-nucleotide sequence that starts translation of mRNA and encodes the amino acid methionine...
Degeneracy or redundancy of codons is the redundancy of the genetic code, exhibited as the multiplicity of three-base pair codon combinations that specify...
regions begin with the startcodon and end with a stop codon. In general, the startcodon is an AUG triplet and the stop codon is UAG ("amber"), UAA ("ochre")...
followed by mRNA binding, and startscodon-P-site interaction. IF2 enters with the initiator tRNA and places it on the startcodon. GTP hydrolysis by IF2 releases...
scanning and selection of the startcodons. This can create changes in the selection of the factors, binding to different codons. Another important eukaryotic...
of a messenger RNA (mRNA) that is directly upstream from the initiation codon. This region is important for the regulation of translation of a transcript...
Additionally, a "startcodon", and three "stop codons" indicate the beginning and end of the protein coding region. There are 64 possible codons (four possible...
of the affected organism. A Possible startcodons in NCBI table 1. ATG is most common. The two other startcodons listed by table 1 (GTG and TTG) are rare...
entire coding sequence lies within the bounds (between the startcodon and the stop codon) of a larger external gene. The coding sequence for a nested...
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