Definition, Meaning & Synonyms
start-codon
Noun
/stɑrt ˈkɒdɒn/

Definition
A sequence of nucleotides in messenger RNA that marks the starting point of protein synthesis.

Examples
- The start codon AUG specifically codes for the amino acid methionine.
- In genetic engineering, understanding the start codon can aid in designing more effective genes.

Meaning
The start codon is crucial in the process of translation; it signals the ribosome to begin translating the mRNA into an amino acid chain.

Synonyms
- Initiation codon
- Start signal