ion channel

Noun

 * 1)  A protein complex or single protein that spans between both sides of a cell membrane and allows specific ions to pass through.
 * 2) * 2008 Daniels, David. "Ion Channels Play Key Role in R&D". 1 June 2008. Genetic Engineering & Biotechnology News, 28 (11), pg 24.; archived 2 January 2010. ISSN 1935-472X. OCLC 77706455.
 * Ion channels, which facilitate this movement, are protein assemblies that penetrate the membrane and catalyze passage of specific ions such as sodium (Na+), potassium (K+), or calcium (Ca2+) into or out of the cell down the electrochemical gradient.

Translations

 * Chinese:
 * Mandarin: 離子通道
 * French:
 * German: Ionenkanal
 * Hungarian: ioncsatorna
 * Polish: kanał jonowy
 * Russian: ио́нный кана́л