Aquaporin: A water channel. Aquaporins form pores in the membranes of cells and selectively conduct water molecules through the membrane, while preventing the passage of ions (such as sodium and potassium) and other small molecules. Aquaporins are typically composed of identical subunit proteins. Wa...
Found op http://www.medterms.com/script/main/art.html?articlekey=33425
(= AQP; CHIP28) Integral membrane protein (28 kD) with six trans-membrane domains that greatly increases water permeability. Found esp. in kidney, red blood cells. AQP1 forms a homotetramer of four independent channels. Arabidopsis has at least 20 distinct AQP genes. Members of the major intrinsic p...
Found op http://www.encyclo.co.uk/visitor-contributions.php
<protein> Plant cell wall polysaccharides containing predominantly arabinose and galactose. ... Two main types are recognised: arabinogalactan 1, found in the pectin portion of angiosperms and containing _(1-4) linked galactan and _ arabinose side chains, arabinogalactan II, a highly branched ...
Found op http://www.mondofacto.com/facts/dictionary?aquaporin
(ak″wә-po´rin) any of a family of proteins found in the plasma membrane that permit passage of water and very small solutes. Called also water channel.
Found op http://www.encyclo.co.uk/local/21001
(from the article `Agre, Peter`) ...responded when placed in a water solution. He discovered that cells with the protein swelled up as water flowed in, while those lacking the ...
Found op http://www.britannica.com/eb/a-z/a/91
aquaporin 1. A water channel. 2. Any of a family of proteins found in the plasma membranes of plant and animal cells and forming a functional component of water channels. Aquaporins form pores in the membranes of cells and selectively conduct water molecules through the membrane, while preventing t...
Found op http://www.wordinfo.info/words/index/info/view_unit/170/2
Type: Term Pronunciation: ak-kwă-pōr′in Definitions: 1. A member of a family of transmembrane channel proteins found in epithelial membranes that serve to regulate transepithelial water movement in tissues involved in body fluid homeostasis.
Found op http://www.medilexicon.com/medicaldictionary.php?t=5829
Aquaporins are proteins embedded in the cell membrane that regulate the flow of water. Aquaporins are integral membrane proteins from a larger family of major intrinsic proteins (MIP) that form pores in the membrane of biological cells. Genetic defects involving aquaporin genes have been associated...
Found op http://en.wikipedia.org/wiki/Aquaporin
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