Medical Dictionary

initiation codon

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noun ini·ti·a·tion codon \in-ˌish-ē-ˈā-shən-\
variants: also

initiator codon

Medical Definition of initiation codon

  1. :  start codon Efficient initiation of translation depends upon the existence of a group of six to eight purine-rich nucleotides just upstream from the AUG initiation codon.—James D. Watson et al., Recombinant DNA: A Short Course, 1983


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