title: Evolutionary expansion of CRIB-containing Cdc42 effector proteins.
abstract: Cdc42, a small GTPase, regulates actin polymerization and other signaling pathways through interaction with many different downstream effector proteins. Most of these effector proteins contain a Cdc42-binding domain, called a CRIB domain. Here, we describe the evolutionary analysis of these CRIB-containing proteins in yeast, worms, flies and humans. The number of CRIB-containing effector proteins increases from yeast to humans, involving both an increase within families and the emergence of new families. These evolutionary changes correlate with the development of the more complex signaling pathways present in higher organisms.
authors: Department of Oncology, Lombardi Cancer Center, Georgetown University Medical Center, Washington, DC 20007, USA.
authors: D M
authors: DM
authors: Pirone
authors: D E
authors: DE
authors: Carter
authors: P D
authors: PD
authors: Burbelo
mesh_terms: D000818:Animals; D001665:Binding Sites; D002352:Carrier Proteins / Q000737:chemistry* / Q000378:metabolism*; D018797:Cell Cycle Proteins / Q000737:chemistry / Q000378:metabolism; D004330:Drosophila; D019143:Evolution, Molecular; D020690:GTPase-Activating Proteins / Q000737:chemistry / Q000378:metabolism; D006160:Guanosine Triphosphate / Q000378:metabolism; D006801:Humans; D009687:Nuclear Proteins / Q000737:chemistry / Q000378:metabolism; D010750:Phosphoproteins / Q000737:chemistry / Q000378:metabolism; D010802:Phylogeny; D017346:Protein Serine-Threonine Kinases / Q000737:chemistry / Q000378:metabolism; D017434:Protein Structure, Tertiary; D015398:Signal Transduction; D015003:Yeasts; D020764:cdc42 GTP-Binding Protein / Q000235:genetics / Q000378:metabolism*
chemical_list: D002352:Carrier Proteins; D018797:Cell Cycle Proteins; D020690:GTPase-Activating Proteins; D009687:Nuclear Proteins; D010750:Phosphoproteins; D006160:Guanosine Triphosphate; D017346:Protein Serine-Threonine Kinases; D020764:cdc42 GTP-Binding Protein