ArticleiScience2025
Control of stress-activated Cdc42 dynamics by the MAP kinase Sty1-NDR kinase Orb6 regulatory axis.
Article in iScience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Differential gene expression drives cell-cycle-dependent transition from monopolar to bipolar growth in Schizosaccharomyces pombe.G3 (Bethesda, Md.) · 2026Article
- 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
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5 authors.
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Abstract
Cdc42 is a Rho-family GTPase that controls cell polarization from yeast to human cells. In fission yeast, under normal growth conditions, Cdc42-GTP oscillates between cell tips to promote polarized growth. However, when exposed to environmental stressors, Cdc42 adopts an "exploratory" pattern of Cdc42 activation along the cell membrane. This pattern also occurs when the NDR kinase Orb6 is downregulated. Here, we describe the molecular mechanism behind the emergence of exploratory Cdc42 dynamics and identify a substrate of Orb6 kinase, the Cdc42 GAP Rga3. Additionally, we show that MAP kinase Sty1, known for linking stress signals to the Cdc42 polarity module, negatively regulates Orb6 kinase. During nutritional stress, activation of Sty1 and inactivation of Orb6 are associated with chronological lifespan extension. Our findings reveal a mechanism controlling cell morphology during stress, with important implications for cell survival.
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