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Visualization of protein interactions in living plant cells using bimolecular fluorescence complementation.
Dynamic networks of protein-protein interactions regulate numerous cellular processes and determine the ability to respond appropriately to environmental stimuli. However, the investigation ofExpand
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A common toxin fold mediates microbial attack and plant defense
Many plant pathogens secrete toxins that enhance microbial virulence by killing host cells. Usually, these toxins are produced by particular microbial taxa, such as bacteria or fungi. In contrast,Expand
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Modulation of Plasma Membrane H+-ATPase Activity Differentially Activates Wound and Pathogen Defense Responses in Tomato Plants
Systemin is an important mediator of wound-induced defense gene activation in tomato plants, and it elicits a rapid alkalinization of the growth medium of cultured Lycopersicon peruvianum cells. AExpand
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Structural view of a fungal toxin acting on a 14‐3‐3 regulatory complex
The fungal phytotoxin fusicoccin stabilizes the interaction between the C‐terminus of the plant plasma membrane H+‐ATPase and 14‐3‐3 proteins, thus leading to permanent activation of the proton pump.Expand
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LeCPK1, a Calcium-Dependent Protein Kinase from Tomato. Plasma Membrane Targeting and Biochemical Characterization1
The cDNA of LeCPK1, a calcium-dependent protein kinase, was cloned from tomato (Lycopersicon esculentum Mill.). LeCPK1 was expressed in Escherichia coli and purified from bacterial extracts. TheExpand
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Phosphorylation of Thr-948 at the C Terminus of the Plasma Membrane H+-ATPase Creates a Binding Site for the Regulatory 14-3-3 Protein
The plant plasma membrane H+-ATPase is activated by the binding of 14-3-3 protein to the C-terminal region of the enzyme, thus forming an H+-ATPase–14-3-3 complex that can be stabilized by the fungalExpand
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A Plant Plasma Membrane H+-ATPase Expressed in Yeast Is Activated by Phosphorylation at Its Penultimate Residue and Binding of 14-3-3 Regulatory Proteins in the Absence of Fusicoccin*
The Nicotiana plumbaginifolia plasma membrane H+-ATPase isoform PMA2, equipped with a His6 tag, was expressed in Saccharomyces cerevisiae and purified. Unexpectedly, a fraction of the purified taggedExpand
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Desulfoglucosinolate Sulfotransferases from Arabidopsis thaliana Catalyze the Final Step in the Biosynthesis of the Glucosinolate Core Structure*
The phytotoxin coronatine is a structural analog of octadecanoid signaling molecules, which are well known mediators of plant defense reactions. To isolate novel coronatine-regulated genes fromExpand
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A fast brassinolide-regulated response pathway in the plasma membrane of Arabidopsis thaliana.
To understand molecular processes in living plant cells, quantitative spectro-microscopic technologies are required. By combining fluorescence lifetime spectroscopy with confocal microscopy, weExpand
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Structure of a 14-3-3 coordinated hexamer of the plant plasma membrane H+ -ATPase by combining X-ray crystallography and electron cryomicroscopy.
Regulatory 14-3-3 proteins activate the plant plasma membrane H(+)-ATPase by binding to its C-terminal autoinhibitory domain. This interaction requires phosphorylation of a C-terminal, mode III,Expand
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