ArticleMolecular biology of the cell2015
Phosphorylation-dependent inhibition of Cdc42 GEF Gef1 by 14-3-3 protein Rad24 spatially regulates Cdc42 GTPase activity and oscillatory dynamics during cell morphogenesis.
Article in Molecular biology of the cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 51 citations in OpenAlex.
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- Temperature-specific regulation of the NDR kinase Orb6 by the MAPK Sty1 to promote heat stress resilience.Journal of cell science · 2026Article
- NDR1/2 kinases regulate cell polarization and cell motility through Cdc42 GTPase and Pard3 signaling in mammalian cells.bioRxiv : the preprint server for biology · 2025Article
- Control of stress-activated Cdc42 dynamics by the MAP kinase Sty1-NDR kinase Orb6 regulatory axis.iScience · 2025Article
- Proteomic and phosphoproteomic analyses reveal that TORC1 is reactivated by pheromone signaling during sexual reproduction in fission yeast.PLoS biology · 2024Article
- Oscillatory dynamics of Rac1 activity in Dictyostelium discoideum amoebae.PLoS computational biology · 2024Article
- Arp2/3-dependent endocytosis ensures Cdc42 oscillations by removing Pak1-mediated negative feedback.The Journal of cell biology · 2024Article
- The Arp2/3 complex promotes periodic removal of Pak1-mediated negative feedback to facilitate anticorrelated Cdc42 oscillations.bioRxiv : the preprint server for biology · 2023Article
- Cdc42 GTPase-activating proteins (GAPs) regulate generational inheritance of cell polarity and cell shape in fission yeast.Molecular biology of the cell · 2021Article
- Article
- Review
- Label-Free Quantitative Phosphoproteomics of the Fission YeastInternational journal of molecular sciences · 2021Article
- Article
- Cellular self-organization: generating order from the abyss.Molecular biology of the cell · 2020Review
- A novel interplay between GEFs orchestrates Cdc42 activity during cell polarity and cytokinesis in fission yeast.Journal of cell science · 2019Article
- Article
- Conserved NDR/LATS kinase controls RAS GTPase activity to regulate cell growth and chronological lifespan.Molecular biology of the cell · 2019Article
- Fission Yeast NDR/LATS Kinase Orb6 Regulates Exocytosis via Phosphorylation of the Exocyst Complex.Cell reports · 2019Article
- Rho Family GTPases in Fission Yeast Cytokinesis.Communicative & integrative biology · 2019Review
- Local and global Cdc42 guanine nucleotide exchange factors for fission yeast cell polarity are coordinated by microtubules and the Tea1-Tea4-Pom1 axis.Journal of cell science · 2018Article
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9 authors at 3 institutions in 1 country.
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Abstract
Active Cdc42 GTPase, a key regulator of cell polarity, displays oscillatory dynamics that are anticorrelated at the two cell tips in fission yeast. Anticorrelation suggests competition for active Cdc42 or for its effectors. Here we show how 14-3-3 protein Rad24 associates with Cdc42 guanine exchange factor (GEF) Gef1, limiting Gef1 availability to promote Cdc42 activation. Phosphorylation of Gef1 by conserved NDR kinase Orb6 promotes Gef1 binding to Rad24. Loss of Rad24-Gef1 interaction increases Gef1 protein localization and Cdc42 activation at the cell tips and reduces the anticorrelation of active Cdc42 oscillations. Increased Cdc42 activation promotes precocious bipolar growth activation, bypassing the normal requirement for an intact microtubule cytoskeleton and for microtubule-dependent polarity landmark Tea4-PP1. Further, increased Cdc42 activation by Gef1 widens cell diameter and alters tip curvature, countering the effects of Cdc42 GTPase-activating protein Rga4. The respective levels of Gef1 and Rga4 proteins at the membrane define dynamically the growing area at each cell tip. Our findings show how the 14-3-3 protein Rad24 modulates the availability of Cdc42 GEF Gef1, a homologue of mammalian Cdc42 GEF DNMBP/TUBA, to spatially control Cdc42 GTPase activity and promote cell polarization and cell shape emergence.
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