2021
DOI: 10.1242/jcs.247916
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Polarisome assembly mediates actin remodeling during polarized yeast and fungal growth

Abstract: Dynamic assembly and remodeling of actin is critical for many cellular processes during development and stress adaptation. In filamentous fungi and budding yeast, actin cables align in a polarized manner along the mother-to-daughter cell axis, and are essential for the establishment and maintenance of polarity; moreover, they rapidly remodel in response to environmental cues to achieve an optimal system response. A formin at the tip region within a macromolecular complex, called the polarisome, is responsible … Show more

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Cited by 20 publications
(31 citation statements)
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“…The intrinsically disordered regions of Aip5 and Bud6 could drive macromolecular assembly in heterogeneous states under different cellular conditions (Miao et al, 2018;Xie et al, 2019;Xie and Miao, 2021). Although Aip5C does not interact with Bud6C, Aip5C interacts with the N-terminal fragment of Bud6 (1-141) (Glomb et al, 2019), whether full-length Aip5 and Bud6 collaborate to promote formin function needs to be further studied to achieve a more comprehensive understanding of tunable regulation of formin activities by having higher-order assembly of the complex.…”
Section: Common Machinery Of Cooperative Actin Nucleationmentioning
confidence: 99%
“…The intrinsically disordered regions of Aip5 and Bud6 could drive macromolecular assembly in heterogeneous states under different cellular conditions (Miao et al, 2018;Xie et al, 2019;Xie and Miao, 2021). Although Aip5C does not interact with Bud6C, Aip5C interacts with the N-terminal fragment of Bud6 (1-141) (Glomb et al, 2019), whether full-length Aip5 and Bud6 collaborate to promote formin function needs to be further studied to achieve a more comprehensive understanding of tunable regulation of formin activities by having higher-order assembly of the complex.…”
Section: Common Machinery Of Cooperative Actin Nucleationmentioning
confidence: 99%
“…El crecimiento polarizado también es impulsado por el polarisoma, un complejo que incluye la proteína de andamiaje Spa2, la formina Bni1 que sirve como nucleador de los cables de actina, la proteína de unión a formina-actina Bud6 y las proteínas Aip5 y Pea2 (Xie y Miao, 2021). Durante el crecimiento polarizado, las vesículas secretoras unidas a las membranas post-Golgi se dirigen continuamente al ápice de la hifa (Figura 11), suministrando el material necesario para expandir la membrana plasmática y sintetizar nueva pared celular (Xie y Miao, 2021).…”
Section: El Polarisoma Y El Exocistounclassified
“…El crecimiento polarizado también es impulsado por el polarisoma, un complejo que incluye la proteína de andamiaje Spa2, la formina Bni1 que sirve como nucleador de los cables de actina, la proteína de unión a formina-actina Bud6 y las proteínas Aip5 y Pea2 (Xie y Miao, 2021). Durante el crecimiento polarizado, las vesículas secretoras unidas a las membranas post-Golgi se dirigen continuamente al ápice de la hifa (Figura 11), suministrando el material necesario para expandir la membrana plasmática y sintetizar nueva pared celular (Xie y Miao, 2021). Las vesículas están unidas a los cables de actina por la GTPasa de tipo Rab Sec4, activada por su GEF Sec2 (Caballero-Lima et al, 2013;Caballero-Lima y Sudbery, 2014), mientras que la miosina Myo2, que forma un complejo con la cadena ligera reguladora Mlc1, proporciona la fuerza motriz para el transporte de vesículas (Jones y Sudbery, 2010).…”
Section: El Polarisoma Y El Exocistounclassified
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