“…Thus, the removal of exon 1 in most retrovirus-induced bursal lymphomas (11,37), as well as in the majority of c-myc-immunoglobulin locus translocations found in plasmacytomas (3,20,41,43) and some Burkitt's lymphomas (3,5), may enhance translation of c-myc (11,37). Experiments to address the issue of translation efficiency with truncated c-myc transcripts have yielded inconsistant data (7,11,30). Unfortunately, the amount of c-inyc protein in chicken bursal lymphomas with and without the first exons present in RNA has not yet been examined.…”