PLANTPLASMAMEMBRANEH+-ATPases: Powerhouses for Nutrient Uptake

2001/06/01 by Michael Palmgren, Michael G Palmgren · 4 citations
Biochemistry, Genetics and Molecular Biology · #14-3-3 protein interactions #ATP Synthase and ATPases Research #Photosynthetic Processes and Mechanisms

paper · doi:10.1146/annurev.arplant.52.1.817

openalex publication_date 2001/06/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29

Abstract

Most transport proteins in plant cells are energized by electrochemical gradients of protons across the plasma membrane. The formation of these gradients is due to the action of plasma membrane H+ pumps fuelled by ATP. The plasma membrane H+-ATPases share a membrane topography and general mechanism of action with other P-type ATPases, but differ in regulatory properties. Recent advances in the field include the identification of the complete H+-ATPase gene family in Arabidopsis, analysis of H+-ATPase function by the methods of reverse genetics, an improved understanding of the posttranslational regulation of pump activity by 14-3-3 proteins, novel insights into the H+ transport mechanism, and progress in structural biology. Furthermore, the elucidation of the three-dimensional structure of a related Ca2+ pump has implications for understanding of structure-function relationships for the plant plasma membrane H+-ATPase.

Citations

• The plasma membrane H+-ATPase gene family in Arabidopsis: genomic sequence of AHA10 which is expressed primarily in developing seeds
• The promoter of the Arabidopsis thaliana SUC2 sucrose-H+ symporter gene directs expression of ?-glucuronidase to the phloem: Evidence for phloem loading and unloading by SUC2
• Biochemical Aspects of Active Transport

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• Molecular Cloning Strategy and Vector Design for ScWRKY5 Gene from Sugarcane Targeted to Tomato: A Framework for Abiotic Stress Tolerance Studies

Related

• Biochemical Characterization of In Vitro Phosphorylation and Dephosphorylation of the Plasma Membrane H+-ATPase
• Fast-forward on P-type ATPases: recent advances on structure and function
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• Aquaporins in Plants
• PIN2 is required for the adaptation of Arabidopsis roots to alkaline stress by modulating proton secretion