Reference: Wise JA, et al. (1983) Yeast contains small nuclear RNAs encoded by single copy genes. Cell 35(3 Pt 2):743-51

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Abstract

We have identified a group of RNA molecules in Saccharomyces cerevisiae that appears to be equivalent to the U class of small nuclear RNAs previously described in other eucaryotes, resembling them in size, metabolic stability, 5' cap structure, presence of modified bases, and nuclear localization. However, the yeast snRNAs differ from their counterparts in several potentially important ways. First, they are present in very low abundance, less than 200 copies per cell, as compared to 10(5)-10(6) for mammalian U1-U6. Second, there appear to be more species in yeast than in any cell type previously examined. Finally, we have cloned five yeast snRNA genes, and find that each is present in a single copy per haploid genome, whereas all previously characterized snRNAs are encoded by multiple (5 to 100) gene copies. The presence of single copy genes in yeast will greatly facilitate the genetic analysis of snRNA function.FAU - Wise, J .

Reference Type
Journal Article
Authors
Wise JA, Tollervey D, Maloney D, Swerdlow H, Dunn EJ, Guthrie C
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