- channel protein
- a cell membrane protein containing a transmembrane pore through which ions and small molecules can diffuse; it is most commonly composed of several subunits surrounding the pore. See channel (def. 2).
Medical dictionary. 2011.
channel protein
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channel protein — A protein that facilitates the diffusion of molecules/ions across lipid membranes by forming a hydrophilic pore. Most frequently multimeric with the pore formed by subunit interactions … Dictionary of molecular biology
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Protein — Proteins are large organic compounds made of amino acids arranged in a linear chain and joined together by peptide bonds between the carboxyl and amino groups of adjacent amino acid residues. The sequence of amino acids in a protein is defined by … Wikipedia
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Protein subunit — In structural biology, a protein subunit or subunit protein is a single protein molecule that assembles (or coassembles ) with other protein molecules to form a multimeric or oligomeric protein. Many naturally occurring proteins and enzymes are… … Wikipedia
channel — A furrow, gutter, or groovelike passageway. SEE ALSO: canal. [L. canalis] ion c. a specific macromolecular protein pathway, with an aqueous “pore,” that traverses the lipid bilayer of a cell s plasma membrane and maintains or modulates the… … Medical dictionary
channel — channel1 channeler; esp. Brit., channeller, n. /chan l/, n., v., channeled, channeling or (esp. Brit.) channelled, channelling. n. 1. the bed of a stream, river, or other waterway. 2. Naut. a navigable route between two bodies of water … Universalium
channel — I chan•nel [[t]ˈtʃæn l[/t]] n. v. neled, nel•ing (esp. brit.) nelled, nel•ling. 1) the bed of a stream, river, or other waterway 2) naut. navig. a navigable route between two bodies of water 3) the deeper part of a waterway 4) a wide strait, as… … From formal English to slang
