title: Single cells (put a ring on it).
abstract: Proper spatial and temporal regulation of the small GTPase RhoA at the equatorial cortex represents a critical step in the specification of the division plane in eukaryotes. Despite increased understanding of the mechanisms whereby RhoA becomes active following chromosome segregation, far less is known about how RhoA is spatially regulated so that it concentrates precisely at the division site. In the April 1, 2009, issue of Genes & Development, Yoshida and colleagues (pp. 810-823) uncovered two genetically separable mechanisms whereby Rho1 is recruited to the bud neck in the budding yeast Saccharomyces cerevisiae to facilitate cytokinesis.
authors.affiliation: Department of Molecular Genetics and Cell Biology, The University of Chicago, Chicago, Illinois 60637, USA.
authors.forename: Benjamin A
authors.initials: BA
authors.lastname: Wolfe
authors.forename: Michael
authors.initials: M
authors.lastname: Glotzer
mesh_terms: D000818:Animals; D048749:Cytokinesis / Q000502:physiology*; D020662:Guanine Nucleotide Exchange Factors / Q000378:metabolism; D064067:Rho Guanine Nucleotide Exchange Factors; D012441:Saccharomyces cerevisiae / Q000502:physiology*; D029701:Saccharomyces cerevisiae Proteins / Q000378:metabolism*; D020741:rho GTP-Binding Proteins / Q000378:metabolism*
chemical_list: D020662:Guanine Nucleotide Exchange Factors; D064067:Rho Guanine Nucleotide Exchange Factors; D029701:Saccharomyces cerevisiae Proteins; C051302:RHO1 protein, S cerevisiae; D020741:rho GTP-Binding Proteins