A sphingolipid in which the head group is phosphoryl choline. A close analogue of phosphatidyl choline. In many cells the concentration of sphingomyelin and phosphatidyl choline in the plasma membrane seems to bear a reciprocal relationship.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • Sphingomyelin — Sphingomyelin(SPH) is a type of sphingolipid found in animal cell membranes, especially in the membranous myelin sheath which surrounds some nerve cell axons. It usually consists of phosphorylcholine and ceramide. In humans SPH represents 85% of… …   Wikipedia

  • Sphingomyelin — mit einem Phosphocholin als Kopfgruppe Allgemeine Strukturformel der Sphingolipide. Bei Sphingomyelinen …   Deutsch Wikipedia

  • sphingomyelin — sphingomyelin. См. сфингомиелин. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • sphingomyelin — /sfing goh muy euh lin/, n. Biochem. any of the class of phospholipids occurring chiefly in the brain and spinal cord, composed of phosphoric acid, choline, sphingosine, and a fatty acid. [ < NL sphingo , comb. form repr. Gk sphíngein to draw… …   Universalium

  • sphingomyelin — noun a phospholipid, derived from sphingosine and choline, found in nerve tissue …   Wiktionary

  • Sphingomyelin — Sphịn|go|my|e|lin [↑ Sphing u. ↑ Myelin] im Myelin des ZNS u. in Hirnsubstanz neben anderen Phospholipiden enthaltene Phosphosphingolipide aus an Ceramide gebundenem Phosphocholin …   Universal-Lexikon

  • sphingomyelin — sphin·go·my·elin .sfiŋ gō mī ə lən n any of a group of crystalline phosphatides that are obtained esp. from nerve tissue and that on hydrolysis yield a fatty acid (as lignoceric acid), sphingosine, choline, and phosphoric acid * * * n. a… …   Medical dictionary

  • sphingomyelin — n. phospholipids found mainly in the brain and spinal cord (Biochemistry) …   English contemporary dictionary

  • sphingomyelin — [ˌsfɪŋgə(ʊ) mʌɪəlɪn] noun Biochemistry a substance consisting of phosphates of sphingosine and choline, found in the brain and nervous tissue …   English new terms dictionary

  • sphingomyelin — sphin·go·myelin …   English syllables

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