Ripmaster TL, et al. (1992) (original) (raw)
Reference: Ripmaster TL, et al. (1992)
Abstract
We have isolated a cold-sensitive mutant of Saccharomyces cerevisiae in which there is a deficit of 60S ribosomal subunits. Cold sensitivity and the assembly defect are recessive and cosegregate, defining a single essential gene that we designated DRS1 (deficiency of ribosomal subunits). The wild-type DRS1 gene was cloned by complementation of the cold-sensitive phenotype of drs1. Sequence analysis reveals a high degree of similarity to a family of proteins that are thought to function as ATP-dependent RNA helicases. Pulse-chase analysis of ribosomal RNA synthesis and processing indicates that the drs1 mutant accumulates the 27S precursor of the mature 25S rRNA. These results suggest that, as in pre-mRNA splicing, RNA helicase activities are involved in ribosomal RNA processing.
PMID: 1454790
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Reference Type
Comparative Study | Journal Article | Research Support, U.S. Gov't, Non-P.H.S. | Research Support, U.S. Gov't, P.H.S.
Authors
Ripmaster TL, Vaughn GP, Woolford JL
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