Specific transcription of eukaryotic tRNA genes in Xenopus germinal vesicle extracts.
- 1 October 1978
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 75 (10), 4819-4823
- https://doi.org/10.1073/pnas.75.10.4819
Abstract
Cloned tRNA genes from Drosophila [melanogaster] and from yeast were [Schizosaccharomyces pombe] transcribed faithfully in extracts prepared from Xenopus [laevis] germinal vesicles. The newly formed RNA is composed of precursor tRNA (of 5S RNA size) and of tRNA. The plasmid pCIT12 carries genes for Drosophila tRNALys, tRNAArg and tRNAAsn. Nucleotide analysis of one RNA species transcribed from pCIT12 DNA showed it to be identical to Drosophila tRNALys; it even contained some of the modified nucleotides expected for this tRNA. This RNA species is formed in the germinal vesicle extract via a larger precursor tRNA molecule that does not contain nucleotide modifications. This simple transcription system should aid studies aimed at defining the regulatory DNA regions responsible for eukaryotic gene transcription. It may also provide tRNA precursors that are needed for detailed investigations of eukaryotic tRNA biosynthesis.This publication has 20 references indexed in Scilit:
- Cloned single repeating units of 5S DNA direct accurate transcription of 5S RNA when injected into Xenopus oocytes.Proceedings of the National Academy of Sciences, 1978
- Local mutagenesis: a method for generating viral mutants with base substitutions in preselected regions of the viral genome.Proceedings of the National Academy of Sciences, 1978
- Transcription of cloned tRNA gene fragments and subfragments injected into the oocyte nucleus of Xenopus laevis.Proceedings of the National Academy of Sciences, 1978
- DNA sequencing with chain-terminating inhibitorsProceedings of the National Academy of Sciences, 1977
- High-fidelity transcription of 5S DNA injected into Xenopus oocytes.Proceedings of the National Academy of Sciences, 1977
- Purified DNAs are transcribed after microinjection into Xenopus oocytes.Proceedings of the National Academy of Sciences, 1977
- A new method for sequencing DNA.Proceedings of the National Academy of Sciences, 1977
- A method for the isolation of specific tRNA precursors.Proceedings of the National Academy of Sciences, 1975
- Detection of specific sequences among DNA fragments separated by gel electrophoresisJournal of Molecular Biology, 1975
- A rapid method for determining sequences in DNA by primed synthesis with DNA polymeraseJournal of Molecular Biology, 1975