Characterization of CAX4, an Arabidopsis H+/Cation Antiporter

N Cheng, JK Pittman, T Shigaki, KD Hirschi - Plant Physiology, 2002 - academic.oup.com
Ion compartmentalization is essential for plant growth and development. The Arabidopsis
open reading frames for CAX1, CAX2, and CAX3 (cation exchangers 1, 2, and 3) were …

[HTML][HTML] Structural determinants of Ca2+ transport in the Arabidopsis H+/Ca2+ antiporter CAX1

T Shigaki, N Cheng, JK Pittman, K Hirschi - Journal of Biological Chemistry, 2001 - ASBMB
Ca 2+ levels in plants, fungi, and bacteria are controlled in part by H+/Ca 2+ exchangers;
however, the relationship between primary sequence and biological activity of these …

[HTML][HTML] Evidence of differential pH regulation of the Arabidopsis vacuolar Ca2+/H+ antiporters CAX1 and CAX2

JK Pittman, T Shigaki, KD Hirschi - Febs Letters, 2005 - Elsevier
The Arabidopsis Ca2+/H+ antiporters cation exchanger (CAX) 1 and 2 utilise an
electrochemical gradient to transport Ca2+ into the vacuole to help mediate Ca2+ …

Regulation of CAX1, an Arabidopsis Ca2+/H+ Antiporter. Identification of an N-Terminal Autoinhibitory Domain

JK Pittman, KD Hirschi - Plant physiology, 2001 - academic.oup.com
Regulation of Ca2+ transport determines the duration of a Ca2+ signal, and hence, the
nature of the biological response. Ca2+/H+ antiporters such as CAX1 (cation exchanger 1) …

Distinct N-Terminal Regulatory Domains of Ca2+/H+ Antiporters

JK Pittman, CS Sreevidya, T Shigaki… - Plant …, 2002 - academic.oup.com
The regulation of intracellular Ca2+ levels is achieved in part by high-capacity vacuolar
Ca2+/H+ antiporters. An N-terminal regulatory region (NRR) on the Arabidopsis Ca2+/H+ …

CAX1, an H+/Ca2+ antiporter from Arabidopsis.

KD Hirschi, RG Zhen… - Proceedings of the …, 1996 - National Acad Sciences
Reestablishment of the resting state after stimulus-coupled elevations of cytosolic-free Ca2+
requires the rapid removal of Ca2+ from the cytosol of plant cells. Here we describe the …

[HTML][HTML] Characterization of CXIP4, a novel Arabidopsis protein that activates the H+/Ca2+ antiporter, CAX1

NH Cheng, JZ Liu, RS Nelson, KD Hirschi - FEBS letters, 2004 - Elsevier
Precise regulation of calcium transporters is essential for modulating the Ca2+ signaling
network that is involved in the growth and adaptation of all organisms. The Arabidopsis …

Functional and regulatory analysis of the Arabidopsis thaliana CAX2 cation transporter

JK Pittman, T Shigaki, JL Marshall, JL Morris… - Plant Molecular …, 2004 - Springer
The vacuolar sequestration of metals is an important metal tolerance mechanism in plants.
The Arabidopsis thaliana vacuolar transporters CAX1 and CAX2 were originally identified in …

The Arabidopsis cax1 Mutant Exhibits Impaired Ion Homeostasis, Development, and Hormonal Responses and Reveals Interplay among Vacuolar Transporters

NH Cheng, JK Pittman, BJ Barkla, T Shigaki… - The Plant …, 2003 - academic.oup.com
Abstract The Arabidopsis Ca2+/H+ transporter CAX1 (Cation Exchanger1) may be an
important regulator of intracellular Ca2+ levels. Here, we describe the preliminary …

Functional association of Arabidopsis CAX1 and CAX3 is required for normal growth and ion homeostasis

NH Cheng, JK Pittman, T Shigaki… - Plant …, 2005 - academic.oup.com
Cation levels within the cytosol are coordinated by a network of transporters. Here, we
examine the functional roles of calcium exchanger 1 (CAX1), a vacuolar H+/Ca2+ …