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

J LEUNG; M Bouvier-Durand; PC MORRIS; D GUERRIER; F Chefdor; J Giraudat

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

J LEUNG, M Bouvier-Durand, PC MORRIS, D GUERRIER, F Chefdor, J Giraudat

Research output: Contribution to journal › Article › peer-review

Abstract

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 Ca2+-modulated phosphatase and functions to integrate ABA and Ca2+ signals with phosphorylation-dependent response pathways.

Original language	English
Pages (from-to)	1448-1452
Number of pages	5
Journal	Science
Volume	264
Issue number	5164
Publication status	Published - 3 Jun 1994

Keywords

COLD-ACCLIMATION
ABSCISIC-ACID
GUARD-CELLS
ARTIFICIAL CHROMOSOME LIBRARY
EXPRESSION
ACTIVATOR
MUTATIONS
CLONING
STOMATA
THALIANA L HEYNH

Cite this

@article{41b6120f633f4baf953bf3435cddcf65,

title = "Arabidopsis ABA response gene ABI1: features of a calcium-modulated protein phosphatase.",

abstract = "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 Ca2+-modulated phosphatase and functions to integrate ABA and Ca2+ signals with phosphorylation-dependent response pathways.",

keywords = "COLD-ACCLIMATION, ABSCISIC-ACID, GUARD-CELLS, ARTIFICIAL CHROMOSOME LIBRARY, EXPRESSION, ACTIVATOR, MUTATIONS, CLONING, STOMATA, THALIANA L HEYNH",

author = "J LEUNG and M Bouvier-Durand and PC MORRIS and D GUERRIER and F Chefdor and J Giraudat",

year = "1994",

month = jun,

day = "3",

language = "English",

volume = "264",

pages = "1448--1452",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "5164",

}

TY - JOUR

T1 - Arabidopsis ABA response gene ABI1: features of a calcium-modulated protein phosphatase.

AU - LEUNG, J

AU - Bouvier-Durand, M

AU - MORRIS, PC

AU - GUERRIER, D

AU - Chefdor, F

AU - Giraudat, J

PY - 1994/6/3

Y1 - 1994/6/3

N2 - 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 Ca2+-modulated phosphatase and functions to integrate ABA and Ca2+ signals with phosphorylation-dependent response pathways.

AB - 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 Ca2+-modulated phosphatase and functions to integrate ABA and Ca2+ signals with phosphorylation-dependent response pathways.

KW - COLD-ACCLIMATION

KW - ABSCISIC-ACID

KW - GUARD-CELLS

KW - ARTIFICIAL CHROMOSOME LIBRARY

KW - EXPRESSION

KW - ACTIVATOR

KW - MUTATIONS

KW - CLONING

KW - STOMATA

KW - THALIANA L HEYNH

M3 - Article

SN - 0036-8075

VL - 264

SP - 1448

EP - 1452

JO - Science

JF - Science

IS - 5164

ER -

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

Abstract

Keywords

Fingerprint

Cite this