Signaling regulated endocytosis and exocytosis lead to mating pheromone concentration dependent morphologies in yeast.
FEBS Lett
; 586(23): 4208-4214, 2012 Nov 30.
Article
em En
| MEDLINE
| ID: mdl-23108052
ABSTRACT
Polarized cell morphogenesis requires actin cytoskeleton rearrangement for polarized transport of proteins, organelles and secretory vesicles, which fundamentally underlies cell differentiation and behavior. During yeast mating, Saccharomyces cerevisiae responds to extracellular pheromone gradients by extending polarized projections, which are likely maintained through vesicle transport to (exocytosis) and from (endocytosis) the membrane. We experimentally demonstrate that the projection morphology is pheromone concentration-dependent, and propose the underlying mechanism through mathematical modeling. The inclusion of membrane flux and dynamically evolving cell boundary into our yeast mating signaling model shows good agreement with experimental measurements, and provides a plausible explanation for pheromone-induced cell morphology.
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Base de dados:
MEDLINE
Assunto principal:
Feromônios
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Saccharomyces cerevisiae
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Endocitose
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Exocitose
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article