PHYTOCHROME and PROTEIN PHOSPHORYLATION
نویسندگان
چکیده
منابع مشابه
Pr-specific phytochrome phosphorylation in vitro by a protein kinase present in anti-phytochrome maize immunoprecipitates.
Protein kinase activity has repeatedly been found to co-purify with the plant photoreceptor phytochrome, suggesting that light signals received by phytochrome may be transduced or modulated through protein phosphorylation. In this study immunoprecipitation techniques were used to characterize protein kinase activity associated with phytochrome from maize (Zea mays L.). A protein kinase that s...
متن کاملPhosphorylation and dark reversion of phytochrome B.
Phytochrome B (phyB) is the main light receptor responsible for the shade avoidance response in mature plants. Like other phytochromes (phys), it alternates between the Pfr form and the Pr form. Upon activation by red light (causing the switch to the Pfr conformation), phys interact with various signaling partners and translocate from the cytoplasm to the nucleus, where they are found in struct...
متن کاملPhytochrome phosphorylation modulates light signaling by influencing the protein-protein interaction.
Plant photoreceptor phytochromes are phosphoproteins, but the question as to the functional role of phytochrome phosphorylation has remained to be elucidated. We investigated the functional role of phytochrome phosphorylation in plant light signaling using a Pfr-specific phosphorylation site mutant, Ser598Ala of oat (Avena sativa) phytochrome A (phyA). The transgenic Arabidopsis thaliana (phyA-...
متن کاملPhy Tunes: Phosphorylation Status and Phytochrome-Mediated Signaling
Phytochromes are photoreceptors that regulate various aspects of plant growth and development. In this issue of Cell, Ryu et al. (2005) show that PAPP5, a type 5 protein phosphatase, acts on a biologically active phytochrome, increasing its stability and affinity for a downstream signal transducer and thus enhancing plant photoresponses.
متن کاملPhosphorylation of Staphylococcus aureus Protein-Tyrosine Kinase Affects the Function of Glucokinase and Biofilm Formation
Background: When Staphylococcus aureus is grown in the presence of high concentration of external glucose, this sugar is phosphorylated by glucokinase (glkA) to form glucose-6-phosphate. This product subsequently enters into anabolic phase, which favors biofilm formation. The presence of ROK (repressor protein, open reading frame, sugar kinase) motif, phosphate-1 and -2 sites, and tyrosine kina...
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ژورنال
عنوان ژورنال: Photochemistry and Photobiology
سال: 1990
ISSN: 0031-8655,1751-1097
DOI: 10.1111/j.1751-1097.1990.tb01781.x