Codon, Initiator

**Definition:** A codon that directs initiation of protein translation (TRANSLATION, GENETIC) by stimulating the binding of initiator tRNA (RNA, TRANSFER, MET). In prokaryotes, the codons AUG or GUG can act as initiators while in eukaryotes, AUG is the only initiator codon.

**Tree numbers:** - D13.444.735.544.355.225 - G05.360.335.355.225 - G05.360.340.024.340.137.190.225

**Synonyms:** - Codon, Initiation - Initiator Codon - Codon, Start - Start Codon