title: The Crumbs3 Polarity Protein.
abstract: The Crumbs proteins are evolutionarily conserved apical transmembrane proteins.DrosophilaCrumbs was discovered via its crucial role in epithelial polarity during fly embryogenesis. Crumbs proteins have variable extracellular domains but a highly conserved intracellular domain that can bind FERM and PDZ domain proteins. Mammals have three Crumbs genes and this review focuses onCrumbs3, the major Crumbs isoform expressed in mammalian epithelial cells. Although initial work has highlighted the role of Crumbs3 in polarity, more recent studies have found it has an important role in tissue morphogenesis functioning as a linker between the apical membrane and the actin cytoskeleton. In addition, recent publications have linked Crumbs3 to growth control via regulation of the Hippo/Yap pathway.
authors.affiliation: Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109-5680.
authors.forename: Ben
authors.initials: B
authors.lastname: Margolis
mesh_terms: D000818:Animals; D016764:Cell Polarity; D049109:Cell Proliferation; D003599:Cytoskeleton / Q000502:physiology; D004330:Drosophila; D006801:Humans; D008562:Membrane Glycoproteins / Q000737:chemistry / Q000502:physiology*; D009024:Morphogenesis
chemical_list: C472002:CRB3 protein, human; D008562:Membrane Glycoproteins