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start codon

American  

noun

Genetics.
  1. a codon that starts the synthesis of a protein molecule.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Once at the cap, the initiation complex tracks along the mRNA in the 5' to 3' direction, searching for the AUG start codon.

From Textbooks • Jun. 9, 2022

The reading frame for translation is set by the AUG start codon near the 5' end of the mRNA.

From Textbooks • Jun. 9, 2022

No, they cannot be identical because the T nucleotide in DNA is replaced with U nucleotide in RNA and AUG is the start codon.

From Textbooks • Jun. 9, 2022

In addition to specifying the amino acid methionine, it also serves as the start codon to initiate translation.

From Textbooks • Jun. 9, 2022

Following the start codon, mRNA is read three bases at a time, until it reaches one of three different “stop” codons, which end translation.

From Textbooks • Jan. 1, 2018