The Saccharomyces cerevisiae gene CDC40/PRP17 controls cell cycle progression through splicing of the ANC1 gene

Orna Dahan, Martin Kupiec*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The timing of events in the cell cycle is of crucial importance, as any error can lead to cell death or cancerous growth. This accurate timing is accomplished through the activation of specific CDC genes. Mutations in the CDC40/PRP17 gene cause cell cycle arrest at the G2/M stage. It was previously found that the CDC40 gene encodes a pre-mRNA splicing factor, which participates in the second step of the splicing reaction. In this paper we dissect the mechanism by which pre-mRNA splicing affects cell cycle progression. We identify ANC1 as the target of CDC40 regulation. Deletion of the ANC1 intron relieves the cell cycle arrest and temperature sensitivity of cdc40 mutants. Furthermore, we identify, through point mutation analysis, specific residues in the ANC1 intron that are important for its splicing dependency on Cdc40p. Our results demonstrate a novel mechanism of cell cycle regulation that relies on the differential splicing of a subset of introns by specific splicing factors.

Original languageEnglish
Pages (from-to)2529-2540
Number of pages12
JournalNucleic Acids Research
Volume32
Issue number8
DOIs
StatePublished - 2004

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