Ma, Yuan and Gil, Sergio and Grasser, Klaus D. and Mas, Paloma (2018) Targeted Recruitment of the Basal Transcriptional Machinery by LNK Clock Components Controls the Circadian Rhythms of Nascent RNAs in Arabidopsis. PLANT CELL, 30 (4). pp. 907-924. ISSN 1040-4651, 1532-298X
Full text not available from this repository. (Request a copy)Abstract
The rhythms of steady-state mRNA expression pervade nearly all circadian systems. However, the mechanisms behind the rhythmic transcriptional synthesis and its correlation with circadian expression remain fully unexplored, particularly in plants. Here, we discovered a multifunctional protein complex that orchestrates the rhythms of transcriptional activity in Arabidopsis thaliana. The expression of the circadian oscillator genes TIMING OF CAB EXPRESSION1/PSEUDO-RESPONSE REGULATOR1 and PSEUDO-RESPONSE REGULATOR5 initially relies on the modular function of the clock-related factor REVEILLE8: its MYB domain provides the DNA binding specificity, while its LCL domain recruits the clock components, NIGHT LIGHT-INDUCIBLE AND CLOCK-REGULATED proteins (LNKs), to target promoters. LNKs, in turn, specifically interact with RNA Polymerase II and the transcript elongation FACT complex to rhythmically co-occupy the target loci. The functional interaction of these components is central for chromatin status, transcript initiation, and elongation as well as for proper rhythms in nascent RNAs. Thus, our findings explain how genome readout of environmental information ultimately results in rhythmic changes of gene expression.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GATEWAY BINARY VECTORS; POLYMERASE-II CTD; C-TERMINAL DOMAIN; GENE-EXPRESSION; SACCHAROMYCES-CEREVISIAE; HISTONE MODIFICATIONS; TRANSCRIBED REGIONS; LARGEST SUBUNIT; ELONGATION; PLANTS; |
| Subjects: | 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 Mar 2020 06:49 |
| Last Modified: | 11 Mar 2020 06:49 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14810 |
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