1. Type 2C protein phosphatases in plants
- Author
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Alois Schweighofer, Stefan Fuchs, Irute Meskiene, and Erwin Grill
- Subjects
chemistry.chemical_classification ,Regulation of gene expression ,Phosphatase ,Cell Biology ,Pyruvate dehydrogenase phosphatase ,Biology ,Biochemistry ,chemistry.chemical_compound ,Protein structure ,Enzyme ,chemistry ,Protein kinase A ,Molecular Biology ,Abscisic acid ,Function (biology) - Abstract
Type 2C protein phosphatases (PP2Cs) form a structurally unique class of Mg(2+)-/Mn(2+)-dependent enzymes. PP2Cs are evolutionary conserved from prokaryotes to higher eukaryotes and play a prominent role in stress signalling. In this review, we focus on the evolution, function and regulation of the plant PP2Cs. Members of a subclass of plant PP2Cs counteract mitogen-activated protein kinase pathways, whereas members of other subfamilies function as co-receptors for the phytohormone abscisic acid. Recent structural analyses of abscisic acid receptors have elucidated the mode of ligand-dependent regulation and substrate targeting.
- Published
- 2012