title: Organization of 5'-proximal c-myb exons in chicken DNA. Implications for c-myb tissue-specific transcription.
abstract: The organization of 5'-proximal c-myb exons in chicken DNA has been established by restriction enzyme mapping and nucleotide sequencing. Hybridization studies performed with cDNA probes revealed that yolk sac and thymic c-myb RNAs differ in their 5'-termini. A comparison of the genomic c-myb sequence with that of cDNAs isolated from normal thymic and lymphoma avian cells suggests that different promoter regions are used to initiate c-myb transcription in hematopoietic cells of different origins.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002645:Chickens; D003062:Codon; D004247:DNA / Q000235:genetics*; D004262:DNA Restriction Enzymes; D004274:DNA, Recombinant; D005091:Exons; D006410:Hematopoiesis; D008223:Lymphoma / Q000235:genetics; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D011518:Proto-Oncogene Proteins / Q000235:genetics*; D020598:Proto-Oncogene Proteins c-myb; D012313:RNA / Q000235:genetics; D012333:RNA, Messenger / Q000235:genetics; D012689:Sequence Homology, Nucleic Acid; D013950:Thymus Gland / Q000378:metabolism; D014158:Transcription, Genetic; D015017:Yolk Sac / Q000032:analysis
chemical_list: D003062:Codon; D004274:DNA, Recombinant; D011518:Proto-Oncogene Proteins; D020598:Proto-Oncogene Proteins c-myb; D012333:RNA, Messenger; D012313:RNA; D004247:DNA; D004262:DNA Restriction Enzymes