Roles of Sumoylation in MRNA Processing and Metabolism
Overview
General Medicine
Affiliations
SUMO has gained prominence as a regulator in a number of cellular processes. The roles of sumoylation in RNA metabolism, however, while considerable, remain less well understood. In this chapter we have assembled data from proteomic analyses, localization studies and key functional studies to extend SUMO's role to the area of mRNA processing and metabolism. Proteomic analyses have identified multiple putative sumoylation targets in complexes functioning in almost all aspects of mRNA metabolism, including capping, splicing and polyadenylation of mRNA precursors. Possible regulatory roles for SUMO have emerged in pre-mRNA 3' processing, where SUMO influences the functions of polyadenylation factors and activity of the entire complex. SUMO is also involved in regulating RNA editing and RNA binding by hnRNP proteins, and recent reports have suggested the involvement of the SUMO pathway in mRNA export. Together, these reports suggest that SUMO is involved in regulation of many aspects of mRNA metabolism and hold the promise for exciting future studies.
DHX9 SUMOylation is required for the suppression of R-loop-associated genome instability.
Yang B, Liu M, Chiu K, Chien Y, Cheng C, Chen Y Nat Commun. 2024; 15(1):6009.
PMID: 39019926 PMC: 11255299. DOI: 10.1038/s41467-024-50428-4.
Regulation and function of alternative polyadenylation in development and differentiation.
Gallicchio L, Olivares G, Berry C, Fuller M RNA Biol. 2023; 20(1):908-925.
PMID: 37906624 PMC: 10730144. DOI: 10.1080/15476286.2023.2275109.
Cyclic AMP induces reversible EPAC1 condensates that regulate histone transcription.
Iannucci L, DErchia A, Picardi E, Bettio D, Conca F, Surdo N Nat Commun. 2023; 14(1):5521.
PMID: 37684224 PMC: 10491619. DOI: 10.1038/s41467-023-41088-x.
Briley S, Ahmed A, Steenwinkel T, Jiang P, Hartig S, Schindler K Development. 2023; 150(17).
PMID: 37676777 PMC: 10499029. DOI: 10.1242/dev.201535.
Kretova M, Selicky T, Cipakova I, Cipak L Life (Basel). 2023; 13(3).
PMID: 36983760 PMC: 10053845. DOI: 10.3390/life13030604.