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Science 3 June 1994:
Vol. 264. no. 5164, pp. 1448 - 1452
DOI: 10.1126/science.7910981

Articles

Science, Vol 264, Issue 5164, 1448-1452
Copyright © 1994 by American Association for the Advancement of Science


articles

Arabidopsis ABA response gene ABI1: features of a calcium-modulated protein phosphatase

J Leung, M Bouvier-Durand, PC Morris, D Guerrier, F Chefdor, and J Giraudat

Institut des Sciences Vegetales, Centre National de la Recherche Scientifique UPR 40, Gif-sur-Yvette, France.

The Arabidopsis ABI1 locus is essential for a wide spectrum of abscisic acid (ABA) responses throughout plant development. Here, ABI1 was shown to regulate stomatal aperture in leaves and mitotic activity in root meristems. The ABI1 gene was cloned and predicted to encode a signaling protein. Although its carboxyl-terminal domain is related to serine-threonine phosphatase 2C, the ABI1 protein has a unique amino-terminal extension containing an EF hand calcium-binding site. These results suggest that the ABI1 protein is a Ca(2+)-modulated phosphatase and functions to integrate ABA and Ca2+ signals with phosphorylation-dependent response pathways.


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PLANT CELL 10, 1043-1054
   Abstract »    Full Text »
Identification and Characterization of an Unusual Double Serine/Threonine Protein Phosphatase 2C in the Malaria Parasite Plasmodium falciparum.
C. B. Mamoun, D. J. Sullivan Jr., R. Banerjee, and D. E. Goldberg (1998)
J. Biol. Chem. 273, 11241-11247
   Abstract »    Full Text »    PDF »
14-3-3 Proteins Are Part of an Abscisic Acid–VIVIPAROUS1 (VP1) Response Complex in the Em Promoter and Interact with VP1 and EmBP1.
T. F. Schultz, J. Medina, A. Hill, and R. S. Quatrano (1998)
PLANT CELL 10, 837-848
   Abstract »    Full Text »    PDF »
Protein Serine/Threonine Phosphatase Ptc2p Negatively Regulates the Unfolded-Protein Response by Dephosphorylating Ire1p Kinase.
A. A. Welihinda, W. Tirasophon, S. R. Green, and R. J. Kaufman (1998)
Mol. Cell. Biol. 18, 1967-1977
   Abstract »    Full Text »
Abscisic acid signal transduction in the barley aleurone is mediated by phospholipase D activity.
S. Ritchie and S. Gilroy (1998)
PNAS 95, 2697-2702
   Abstract »    Full Text »    PDF »
PEI1, an Embr yo-Specific Zinc Finger Protein Gene Required for Heart-Stage Embr yo Formation in Arabidopsis.
Z. Li and T. L. Thomas (1998)
PLANT CELL 10, 383-398
   Abstract »    Full Text »    PDF »
MP2C, a plant protein phosphatase 2C, functions as a negative regulator of mitogen-activated protein kinase pathways in yeast and plants.
I. Meskiene, L. Bogre, W. Glaser, J. Balog, M. Brandstotter, K. Zwerger, G. Ammerer, and H. Hirt (1998)
PNAS 95, 1938-1943
   Abstract »    Full Text »    PDF »
Mutational analysis of protein phosphatase 2C involved in abscisic acid signal transduction in higher plants.
J. Sheen (1998)
PNAS 95, 975-980
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Calcium-Dependent Protein Phosphorylation May Mediate the Gibberellic Acid Response in Barley Aleurone.
S. Ritchie and S. Gilroy (1998)
Plant Physiology 116, 765-776
   Abstract »    Full Text »    PDF »
Regulation of Actin Tension in Plant Cells by Kinases and Phosphatases.
S. Grabski, E. Arnoys, B. Busch, and M. Schindler (1998)
Plant Physiology 116, 279-290
   Abstract »    Full Text »
Inhibition of the Iron-induced ZmFer1 Maize Ferritin Gene Expression by Antioxidants and Serine/Threonine Phosphatase Inhibitors.
G. Savino, J.-F. Briat, and S. Lobreaux (1997)
J. Biol. Chem. 272, 33319-33326
   Abstract »    Full Text »    PDF »
Abscisic Acid Signaling Through Cyclic ADP-Ribose in Plants.
Y. Wu, J. Kuzma, E. Maréchal, R. Graeff, H. C. Lee, R. Foster, and N. Chua (1997)
Science 278, 2126-2130
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Measurement of Ca2+ Fluxes during Elicitation of the Oxidative Burst in Aequorin-transformed Tobacco Cells.
S. Chandra and P. S. Low (1997)
J. Biol. Chem. 272, 28274-28280
   Abstract »    Full Text »    PDF »



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