Beyond water homeostasis: Diverse functional roles of mammalian aquaporins.

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  • Additional Information
    • Source:
      Publisher: Elsevier Pub. Co Country of Publication: Netherlands NLM ID: 0217513 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0006-3002 (Print) Linking ISSN: 00063002 NLM ISO Abbreviation: Biochim Biophys Acta Subsets: MEDLINE
    • Publication Information:
      Original Publication: Amsterdam : Elsevier Pub. Co.
    • Subject Terms:
      Homeostasis*; Aquaporins/*physiology ; Water/*metabolism; Amino Acid Sequence ; Animals ; Aquaporins/chemistry ; Mammals ; Molecular Sequence Data
    • Abstract:
      Background: Aquaporin (AQP) water channels are best known as passive transporters of water that are vital for water homeostasis.
      Scope of Review: AQP knockout studies in whole animals and cultured cells, along with naturally occurring human mutations suggest that the transport of neutral solutes through AQPs has important physiological roles. Emerging biophysical evidence suggests that AQPs may also facilitate gas (CO2) and cation transport. AQPs may be involved in cell signalling for volume regulation and controlling the subcellular localization of other proteins by forming macromolecular complexes. This review examines the evidence for these diverse functions of AQPs as well their physiological relevance.
      Major Conclusions: As well as being crucial for water homeostasis, AQPs are involved in physiologically important transport of molecules other than water, regulation of surface expression of other membrane proteins, cell adhesion, and signalling in cell volume regulation.
      General Significance: Elucidating the full range of functional roles of AQPs beyond the passive conduction of water will improve our understanding of mammalian physiology in health and disease. The functional variety of AQPs makes them an exciting drug target and could provide routes to a range of novel therapies.
      (Copyright © 2015 Elsevier B.V. All rights reserved.)
    • Contributed Indexing:
      Keywords: Aquaporin; Cell volume regulation; Ion transport; Membrane trafficking; Solute transport
    • Accession Number:
      0 (Aquaporins)
      059QF0KO0R (Water)
    • Publication Date:
      Date Created: 20150915 Date Completed: 20160111 Latest Revision: 20161126
    • Publication Date:
      20231215
    • Accession Number:
      10.1016/j.bbagen.2015.08.023
    • Accession Number:
      26365508