title: Presence of a c-myc transcript initiated in intron 1 in Friend erythroleukemia cells and in other murine cell types with no evidence of c-myc gene rearrangement.
abstract: In Friend murine erythroleukemia cells, although no detectable c-myc gene rearrangement was found, we observed, in addition to the normal 2.3-kilobase c-myc transcript, the presence of a 2.3-kilobase c-myc mRNA initiated in intron 1 at a promoter site called P3. The intron 1-initiated transcript has a longer half-life than the normal c-myc mRNA. This c-myc transcript initiated in intron 1 was also found in other murine cell types where no rearrangement of the c-myc locus has been reported.
mesh_terms: D000818:Animals; D004273:DNA, Neoplasm / Q000235:genetics; D005622:Friend murine leukemia virus; D005784:Gene Amplification; D007438:Introns; D004915:Leukemia, Erythroblastic, Acute / Q000235:genetics*; D051379:Mice; D011518:Proto-Oncogene Proteins / Q000235:genetics*; D011519:Proto-Oncogenes; D012333:RNA, Messenger / Q000235:genetics; D012334:RNA, Neoplasm / Q000235:genetics; D011995:Recombination, Genetic; D014158:Transcription, Genetic
chemical_list: D004273:DNA, Neoplasm; D011518:Proto-Oncogene Proteins; D012333:RNA, Messenger; D012334:RNA, Neoplasm