The codon on mRNA where polypeptide synthesis is initiated. The most common start codon is AUG but sometimes GUG or rarely UUG can be used as a start codon.

The mRNA triplet (AUG) that acts as signals for the beginning of translation at the ribosome. (Compare with stop codons. There are a few mnior exceptions to these codons.)

That codon at which translation of an mRNA molecule begins. This is always an AUG (encoding methionine) in eukaryotes, and nearly always in prokaryotes. In prokaryotes N-formyl-methionine is used to initiate polypeptide synthesis.

The codon (AUG) that codes for the first amino acid residue of all proteins (formylmethionine).

The codon (AUG) on a messenger RNA molecule where protein synthesis begins.

a group of three adjacent ribonucleotides (AUG) in an mRNA that initiates polypeptide formation

The first AUG (methionine) codon to be used by the ribosome at the start of translation.

The codon, usually but not exclusively AUG, that signals the start of a gene sequence to be translated to protein.

ATG and AUG denote sequences of DNA and RNA respectively that are the start codon or initiation codon encoding the amino acid methionine (Met) in eukaryotes and a modified Met (fMet) in prokaryotes.