title: Reverse transcription of yeast double-stranded RNA and ribosomal RNA using synthetic oligonucleotide primers.
abstract: The ability of the four oligodeoxyribonucleotide primers oligo(dT)12-18, oligo(dA)12-18, oligo(dG)12-18 and oligo(dC)12-18 to act as primers for avian myeloblastosis virus reverse transcriptase on denatured yeast double-stranded (ds) RNA templates was investigated. Oligo(dT) and oligo(dA) were found to prime the synthesis of 1.1 and 1.0 kb reverse transcripts, respectively, using denatured M dsRNA as a template. The oligo(dT)- and oligo(dA)-primed cDNAs of M dsRNA hybridized to the region of the M dsRNA that encoded the killer toxin and to each other. Addition of oligo(dT) to reverse transcription reactions of denatured L dsRNA produced a 4.3 kb cDNA. During the course of this investigation oligo(dC) was observed to be a highly efficient primer for reverse transcription of yeast 18 S ribosomal RNA. Oligo(dC) primed the synthesis of a 1.0 kb transcript of 18 S rRNA which hybridized to the large Eco RI fragment of the 18 S rRNA gene. Reverse transcription of double-stranded RNA and 25 S ribosomal RNA was found to occur to some extent in the absence of added oligonucleotide primer.
mesh_terms: D009189:Avian Myeloblastosis Virus / Q000201:enzymology; D004247:DNA / Q000032:analysis; D004262:DNA Restriction Enzymes; D004271:DNA, Fungal / Q000235:genetics*; D009838:Oligodeoxyribonucleotides / Q000494:pharmacology*; D009841:Oligonucleotides / Q000494:pharmacology*; D012330:RNA, Double-Stranded / Q000235:genetics*; D012335:RNA, Ribosomal / Q000235:genetics*; D012194:RNA-Directed DNA Polymerase / Q000378:metabolism; D012441:Saccharomyces cerevisiae / Q000187:drug effects / Q000235:genetics*; D013329:Structure-Activity Relationship; D013698:Templates, Genetic; D014158:Transcription, Genetic / Q000187:drug effects*
chemical_list: D004271:DNA, Fungal; D009838:Oligodeoxyribonucleotides; D009841:Oligonucleotides; D012330:RNA, Double-Stranded; D012335:RNA, Ribosomal; D004247:DNA; D012194:RNA-Directed DNA Polymerase; D004262:DNA Restriction Enzymes