Aquaporin-9 (AQP-9) is a
protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, respo ...
that in humans is encoded by the ''AQP9''
gene
In biology, the word gene (from , ; "...Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a ba ...
.
The
aquaporin
Aquaporins, also called water channels, are channel proteins from a larger family of major intrinsic proteins that form pores in the membrane of biological cells, mainly facilitating transport of water between cells. The cell membranes of a v ...
s/
major intrinsic protein are a family of water-selective membrane channels. Aquaporin-9 has greater sequence similarity with AQP3 and AQP7 and they may be a subfamily. Aquaporin-9 allows passage of a wide variety of noncharged solutes. AQP-9 stimulates urea transport and osmotic water permeability; there are contradicting reports about its role in providing glycerol permeability. Aquaporin-9 may also have some role in specialized leukocyte functions such as immunological response and bactericidal activity.
References
Further reading
*
*
*
*
*
*
*
*
*
*
*
*
*
*
External links
*
*
{{Ion channels, g4