Ribosomal initiation at alternate AUGs on the Sendai virus P/C mRNA

Peptide sera specific for the C, C/C', and P proteins of Sendai virus have been used to confirm that the viral nonstructural proteins originate from internal AUG codons and are translated in a different reading frame from that of the P protein. The C protein undergoes aberrant migration on sodium dodecyl sulfate-polyacrylamide gel electrophoresis and is expressed at higher levels in infected cells than are the P and C' proteins.