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Existing data indicate that a Ca2+ signal stimulates ecdysteroid hormone production by crustacean molting glands (Y-organs). Ca2+ signaling is dependent on a tightly regulated Ca2+ gradient, with intracellular free Ca2+ maintained at a low basal level (typically sub-micromolar). This is achieved through the action of proteins intrinsic to the plasma membrane and the membranes of organelles. One such...
Verticillium dahliae Kleb. is a phytopathogenic fungus that causes wilt diseases in hundreds of dicotyledonous plant species. Previous research has demonstrated that the secretome plays an important role in the pathogenicity of V. dahliae. In this study, the specific secreted protein gene (VdSSP1) in highly virulent defoliating V. dahliae strain VDG1 was cloned, and considered to be a secreted protein...
Existing data indicate that a stage-specific increase in intracellular free Ca 2+ stimulates ecdysteroid production by crustacean molting glands (Y-organs). The concentration of Ca 2+ in cytosol is controlled mainly by proteins intrinsic to the plasma membrane and to the membranes of organelles. Several families of proteins are involved, including Ca 2+ channels, Ca 2+...
CT-rich sequences of incompletely characterized function have been found in the gene promoter regions of many organisms, fungi and members of the genus Phytophthora prominently among them. We describe here an in vitro analysis of CT-element function in regulating transcription of the Phytophthora infestans piypt1 gene, a gene that encodes a monomeric G-protein believed to be involved in regulation...
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