2015
DOI: 10.1242/jcs.166538
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Regulation of Cdc42 polarization by the Rsr1 GTPase and Rga1, a Cdc42 GTPase-activating protein, in budding yeast

Abstract: Cdc42 plays a central role in establishing polarity in yeast and animals, yet how polarization of Cdc42 is achieved in response to spatial cues is poorly understood. Using live-cell imaging, we found distinct dynamics of Cdc42 polarization in haploid budding yeast in correlation with two temporal steps of the G1 phase. The position at which the Cdc42-GTP cluster develops changes rapidly around the division site during the first step but becomes stabilized in the second step, suggesting that an axis of polarize… Show more

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Cited by 25 publications
(62 citation statements)
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References 56 publications
(85 reference statements)
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“…The highest Cdc42-GTP peak appeared at multiple positions near the septin ring in daughter cells until the Cdc42-GTP polar cap became stable at the boundary of T 1 and T 2 ( i.e ., right before the new septin clouds appear at the new bud site) (Fig. 4; See details in Lee et al, 2015). Thus, the Cdc42 biosensor represents a powerful method for uncovering novel Cdc42 activation dynamics and mechanisms underlying cell polarization.…”
Section: Application Of the Cdc42 Biosensormentioning
confidence: 97%
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“…The highest Cdc42-GTP peak appeared at multiple positions near the septin ring in daughter cells until the Cdc42-GTP polar cap became stable at the boundary of T 1 and T 2 ( i.e ., right before the new septin clouds appear at the new bud site) (Fig. 4; See details in Lee et al, 2015). Thus, the Cdc42 biosensor represents a powerful method for uncovering novel Cdc42 activation dynamics and mechanisms underlying cell polarization.…”
Section: Application Of the Cdc42 Biosensormentioning
confidence: 97%
“…2–5)(Ozbudak et al 2005; Tong, Gao, Howell, Bose, Lew & Bi 2007; Lo et al 2013; Okada et al 2013; Kang et al. 2014; Lee et al 2015). …”
Section: Generation Of a Biosensor Of Active Cdc42mentioning
confidence: 99%
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“…A very similar model of this class with Bem1-mediated nonlinear feedback [GEF] ~ RT 2 has been proposed by Park, Chou, and colleagues (Lo et al. , 2013; Lee et al. , 2015).…”
Section: Six Mechanistic Metamodels Of Cdc42 Polarizationmentioning
confidence: 99%