Abstract
Unlike other cell-free translation systems, the mRNA-dependent reticulocyte lysate can translate encephalomyocarditis virus RNA efficiently and completely when supplemented with heterologous tRNA. Cleavage of the nascent polypeptide chain occurs, and 1 of the translation products appears to be a specific proteolytic enzyme which correctly processes the primary products. The identity of the proteins made in vitro was verified by comparison with infected [murine myeloma MOPC 21] cell proteins on dodecylsulfate/polyacrylamide gels and by mapping their coding sequences on the viral genome.