Stuck in the middle: Rac, adhesion, and cytokinesis

Rho family small GTPases (Rac, RhoA, and Cdc42) function at the core of cytokinesis, the physical division of one cell into two. In this issue, Bastos et al. (2012. J. Cell Biol. http://dx.doi.org/10.1083/jcb.201204107) identify a new role for Rac inhibition: to release cell adhesion at the division...

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Detalles Bibliográficos
Autores principales: Davies, Tim, Canman, Julie C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Rockefeller University Press 2012
Materias:
Reviews
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3432767/
https://www.ncbi.nlm.nih.gov/pubmed/22945931
http://dx.doi.org/10.1083/jcb.201207197
Descripción
Sumario:Rho family small GTPases (Rac, RhoA, and Cdc42) function at the core of cytokinesis, the physical division of one cell into two. In this issue, Bastos et al. (2012. J. Cell Biol. http://dx.doi.org/10.1083/jcb.201204107) identify a new role for Rac inhibition: to release cell adhesion at the division plane and allow efficient constriction of the contractile ring. They show that the GTPase-activating protein, CYK4, suppresses equatorial cell substrate adhesion by inhibiting Rac and therefore its effectors ARFGEF7 and PAK1/2.

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