ArticleiScience2024
Modulation of stress granule dynamics by phosphorylation and ubiquitination in plants.
Article in iScience, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- The human DBR1 interactome reveals coupling between intron lariat turnover, pre-mRNA splicing, and RNA quality control pathways.Cell stress & chaperones · 2026Article
- Biomolecular Condensates in Combined and Recurrent Plant Stresses: Integrating Phase Separation, Signal Prioritization, and Cross-Stress Memory.International journal of molecular sciences · 2026Review
- Plant P-bodies in post-transcriptional control: Composition, dynamics, and context-dependent roles.Plant communications · 2026Review
- The role of post-translational modifications in the dynamics of cytoplasmic biomolecular condensates in plants.The New phytologist · 2025Review
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Arabidopsis tandem CCCH zinc finger 1 (TZF1) is an RNA-binding protein that plays a pivotal role in plant growth and stress response. In this report, we show that TZF1 contains two intrinsically disordered regions necessary for its localization to stress granules (SGs). TZF1 recruits mitogen-activated protein kinase (MAPK) signaling components and an E3 ubiquitin ligase KEEP-ON-GOING (KEG) to SGs. TZF1 is phosphorylated by MPKs and ubiquitinated by KEG. Using a high throughput Arabidopsis protoplasts transient expression system, mutant studies reveal that the phosphorylation of specific residues plays differential roles in enhancing or reducing TZF1 SG assembly and protein-protein interaction with mitogen-activated kinase kinase 5 in SGs. Ubiquitination appears to play a positive role in TZF1 SG assembly, because mutations cause a reduction of typical SGs, while enhancing the assembly of large SGs encompassing the nucleus. Together, our results demonstrate that plant SG assembly is distinctively regulated by phosphorylation and ubiquitination.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.