Abstract
To understand the mechanisms of mRNA transport in eukaryotes, we have isolated Saccharomyces cerevisiae temperature-sensitive (ts) mutants which accumulate poly(A)+ RNA in the nucleus at the restrictive temperature. A total of 21 recessive mutants were isolated and classified into 16 coming mutants, these strains do not interrupt splicing of pre-mRNA at 37°C; however four strains accumulate oversized RNA polymerase II transcripts. Some show inhibition of rRNA processing and a further subset of these strains is also characterized by inhibition of tRNA maturation. Several strains accumulate nuclear.
Original language | English |
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Pages (from-to) | 649-659 |
Number of pages | 11 |
Journal | Journal of Cell Biology |
Volume | 126 |
Issue number | 3 |
Publication status | Published - Aug 1994 |
Externally published | Yes |