Sep 12, 2019

The SLC9A-C Mammalian Na+ /H+ Exchanger Family: Molecules, Mechanisms, and Physiology

Physiological Reviews
S F Pedersen, L Counillon


Na+/H+ exchangers play pivotal roles in the control of cell and tissue pH by mediating the electroneutral exchange of Na+ and H+ across cellular membranes. They belong to an ancient family of highly evolutionarily conserved proteins, and they play essential physiological roles in all phyla. In this review, we focus on the mammalian Na+/H+ exchangers (NHEs), the solute carrier (SLC) 9 family. This family of electroneutral transporters constitutes three branches: SLC9A, -B, and -C. Within these, each isoform exhibits distinct tissue expression profiles, regulation, and physiological roles. Some of these transporters are highly studied, with hundreds of original articles, and some are still only rudimentarily understood. In this review, we present and discuss the pioneering original work as well as the current state-of-the-art research on mammalian NHEs. We aim to provide the reader with a comprehensive view of core knowledge and recent insights into each family member, from gene organization over protein structure and regulation to physiological and pathophysiological roles. Particular attention is given to the integrated physiology of NHEs in the main organ systems. We provide several novel analyses and useful overviews, and we ...Continue Reading

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Mentioned in this Paper

Drug Carriers
Regulation of Biological Process
Sodium-Hydrogen Antiporter
Sodium Cation
Gene Function
Membrane Transport Proteins
Protein Isoforms

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