SGD Paper 
Kao HY and Siliciano PG (1996) Identification of Prp40, a novel essential yeast splicing factor associated with the U1 small nuclear ribonucleoprotein particle. Mol Cell Biol 16(3):960-7
Abstract: We have used suppressor genetics to identify factors that interact with Saccharomyces cerevisiae U1 small nuclear RNA (snRNA). In this way, we isolated PRP40-1, a suppressor that restores growth at 18 degrees C to a strain bearing a cold-sensitive mutation in U1 RNA. A gene disruption experiment shows that PRP40 is an essential gene. To study the role of PRP40 in splicing, we created a pool of temperature-sensitive prp40 strains. Primer extension analysis of intron-containing transcripts in prp40 temperature-sensitive strains reveals a splicing defect, indicating that Prp40 plays a direct role in pre-mRNA splicing. In addition, U1 RNA coimmunoprecipitates with Pro40, indicating that Prp40 is bound to the U1 small nuclear ribonucleoprotein particle in vivo. Therefore, we conclude that PRP40 encodes a novel, essential splicing component that associates with the yeast U1 small nuclear ribonucleoprotein particle.
| Status: Published | Type: Journal Article | PubMed ID: 8622699 |
Topics addressed in this paper
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