title: Crystallization of cyclase-associated protein from Dictyostelium discoideum.
abstract: Cyclase-associated protein (CAP) is a conserved two-domain protein that helps to activate the catalytic activity of adenylyl cyclase in the cyclase-bound state through interaction with Ras, which binds to the cyclase in a different region. With its other domain, CAP can bind monomeric actin and therefore also carries a cytoskeletal function. The protein is thus involved in Ras/cAMP-dependent signal transduction and most likely serves as an adapter protein translocating the adenylyl cyclase complex to the actin cytoskeleton. Crystals belonging to the orthorhombic space group C222, with unit-cell parameters a = 71.2, b = 75.1, c = 162.9 A, have been obtained from Dictyostelium discoideum CAP carrying a C-terminal His tag. A complete native data set extending to 2.2 A resolution was collected from a single crystal using an in-house X-ray system. The asymmetric unit contains one molecule of CAP.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D018797:Cell Cycle Proteins / Q000737:chemistry* / Q000302:isolation & purification; D003001:Cloning, Molecular; D018360:Crystallography, X-Ray / Q000379:methods; D003598:Cytoskeletal Proteins; D004023:Dictyostelium / Q000201:enzymology*; D029721:Drosophila Proteins; D006801:Humans; D008840:Microfilament Proteins; D011994:Recombinant Proteins / Q000737:chemistry / Q000302:isolation & purification; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid
chemical_list: C489549:CAP1 protein, human; C410502:Capt protein, Drosophila; D018797:Cell Cycle Proteins; D003598:Cytoskeletal Proteins; D029721:Drosophila Proteins; D008840:Microfilament Proteins; D011994:Recombinant Proteins