title: Comparison of poly(A)-containing RNAs in different cell types of the lower eukaryote Schizophyllum commune.
abstract: Poly(A)-containing RNAs were isolated from morphologically different cells of the fungus Schizophyllum commune. Using mRNA markers the number-average length of poly(A)-containing RNA in total RNA and in purified poly(A)-containing RNA was estimated as 1100 nucleotides. Number-average length of poly(A)-tracts was 33 nucleotides. 2.5% of total RNA is poly(A)-containing RNA and probably up to 7.5% are non-polyadenylated polydisperse RNA sequences. Saturation hybridization of poly(A)-containing RNA to gap-translated [3H]DNA resulted in 16% of the reactive single-copy DNA to become S1 nuclease resistant. It was found that purified poly(A)-containing RNA represented the entire RNA complexity, i.e. 10 000 different RNA sequences in S. commune. RNA sequences isolated from morphologically different mycelia and from fruiting and non-fruiting mycelia were identical for at least 90%.
mesh_terms: D000363:Agaricales / Q000032:analysis*; D007700:Kinetics; D008970:Molecular Weight; D009691:Nucleic Acid Denaturation; D009693:Nucleic Acid Hybridization; D011061:Poly A / Q000032:analysis*; D012331:RNA, Fungal / Q000032:analysis*; D012567:Schizophyllum / Q000032:analysis*
chemical_list: D012331:RNA, Fungal; D011061:Poly A