Variation of C-terminal domain governs RNA polymerase II genomic locations and alternative splicing in eukaryotic transcription

Bibliographic Details
Title: Variation of C-terminal domain governs RNA polymerase II genomic locations and alternative splicing in eukaryotic transcription
Authors: Qian Zhang, Wantae Kim, Svetlana B. Panina, Joshua E. Mayfield, Bede Portz, Y. Jessie Zhang
Source: Nature Communications, Vol 15, Iss 1, Pp 1-18 (2024)
Publisher Information: Nature Portfolio, 2024.
Publication Year: 2024
Collection: LCC:Science
Subject Terms: Science
More Details: Abstract The C-terminal domain of RPB1 (CTD) orchestrates transcription by recruiting regulators to RNA Pol II upon phosphorylation. With CTD driving condensate formation on gene loci, the molecular mechanism behind how CTD-mediated recruitment of transcriptional regulators influences condensates formation remains unclear. Our study unveils that phosphorylation reversibly dissolves phase separation induced by the unphosphorylated CTD. Phosphorylated CTD, upon specific association with transcription regulators, forms distinct condensates from unphosphorylated CTD. Functional studies demonstrate CTD variants with diverse condensation properties exhibit differences in promoter binding and mRNA co-processing in cells. Notably, varying CTD lengths influence the assembly of RNA processing machinery and alternative splicing outcomes, which in turn affects cellular growth, linking the evolution of CTD variation/length with the complexity of splicing from yeast to human. These findings provide compelling evidence for a model wherein post-translational modification enables the transition of functionally specialized condensates, highlighting a co-evolution link between CTD condensation and splicing.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2041-1723
Relation: https://doaj.org/toc/2041-1723
DOI: 10.1038/s41467-024-52391-6
Access URL: https://doaj.org/article/5617c07b006f4dc7b2e870a33e0063c5
Accession Number: edsdoj.5617c07b006f4dc7b2e870a33e0063c5
Database: Directory of Open Access Journals
More Details
ISSN:20411723
DOI:10.1038/s41467-024-52391-6
Published in:Nature Communications
Language:English