aquaporin

(= 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 protein family.

Aquaporin

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. Water molecules traverse the narrowest portion of th...
Found on http://www.medterms.com/script/main/art.asp?articlekey=33425

aquaporin

<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 polymer containing _(1-3) and _ (1-6) linked galac...
Found on http://www.encyclo.co.uk/local/20973

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 on http://www.encyclo.co.uk/local/21001

aquaporin

(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 on http://www.britannica.com/eb/a-z/a/91

aquaporin

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 the passage of ions (such as sodium and potassium) ...
Found on http://www.wordinfo.info/words/index/info/view_unit/170/2

aquaporin

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 on http://www.medilexicon.com/medicaldictionary.php?t=5829

Aquaporin

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 with several human diseases. The 2003 Nobel Prize in Chemistry was awarded jointly to Peter Agre for the discovery of aquaporins, and Ro...
Found on http://en.wikipedia.org/wiki/Aquaporin
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