these data are consistent with the synthesis of vp2 and vp3 occurring by a leaky scanning mechanism in which initiation of translation at a specific aug codon is affected by both ( i ) the intrinsic efficiency of ribosomes recognizing the sequences surrounding the aug codon as an initiation signal and ( ii ) partial interference from 5'-proximal initiation signals and their corresponding open reading frames .
C0009221
codon
C0242610
codon