---

Chen YC, et al.  (2010) Protein Arginine Methylation Facilitates Cotranscriptional Recruitment of Pre-mRNA Splicing Factors. Mol Cell Biol 30(21):5245-56

Abstract: Co-transcriptional recruitment of pre-mRNA splicing factors to their genomic targets facilitates efficient and ordered assembly of a mature messenger ribonucleoprotein particle (mRNP). However, regulation of co-transcriptional recruitment of splicing factors remains largely unknown. Here we demonstrate that protein arginine methylation plays a novel role in regulating this process in Saccharomyces cerevisiae. Our data show that Hmt1, the major type I arginine methyltransferase, methylates Snp1, a U1 snRNP-specific protein, and that the mammalian Snp1 homolog, U1-70K, is likewise arginine methylated. Genome-wide localization analysis reveals that deletion of the HMT1 gene deregulates the recruitment of U1 snRNP and its associated components to intron-containing genes (ICGs). In the same context, splicing factors acting downstream of U1 snRNP addition bind to a reduced number of ICGs. Quantitative measurement of the abundance of spliced target transcripts shows that these changes in recruitment result in an increase in the splicing efficiency of developmentally-regulated mRNAs. We also show that in the absence of either Hmt1 or of its catalytic activity, an association between Snp1 and the SR-like protein Npl3 is substantially increased. Together, these data support a model whereby arginine methylation modulates dynamic associations between SR-like protein and pre-mRNA splicing factor to promote target specificity in splicing.

Status: Published

Type: Journal Article

PubMed ID: 20823272

---

Author Searches

To find contact information or other publications by the authors of this paper, follow these three steps:

1. (1) Choose an author,
2. (2) Choose a search parameter,
3. (3) Click to implement

Chen YC Milliman EJ Goulet I Cote J Jackson CA Vollbracht JA Yu MC Papers in SGD Colleagues in SGD PubMed Google Scholar

---