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Specific Interactions of Saccharomyces cerevisiae Proteins with a Promoter Region of Eukaryotic tRNA Genes
Roman Klemenz, David J. Stillman and E. Peter Geiduschek
Proceedings of the National Academy of Sciences of the United States of America
Vol. 79, No. 20, [Part 1: Biological Sciences] (Oct. 15, 1982), pp. 6191-6195
Published by: National Academy of Sciences
Stable URL: http://www.jstor.org/stable/12838
Page Count: 5
You can always find the topics here!Topics: DNA, Genes, Transfer RNA, RNA, Plasmids, Yeasts, Sulfates, Fungal proteins, Quaternary ammonium compounds, Nucleotide sequences
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The specific binding of one or several Saccharomyces cerevisiae proteins to a segment of genes that code for different yeast tRNAs has been demonstrated with the use of the DNase I-protection ``footprint'' assay of Galas and Schmitz. The analyzed binding occurs near the 3′ ends of the genes and is centered on an 11-base-pair DNA sequence that has been well conserved among eukaryotic tRNA genes. Others have shown the involvement of this sequence in initiating the transcription of tRNA genes by RNA polymerase III. The adenovirus gene that codes for VAI RNA also contains this conserved sequence element, and we detect binding of yeast protein(s) to this gene. Competition experiments show that a common set of proteins binds to different tRNA genes. The DNA-protein complex is quite stable at 20 degrees C and low ionic strength.
Proceedings of the National Academy of Sciences of the United States of America © 1982 National Academy of Sciences