spectrin

spectrin
A filamentous contractile protein that together with actin and other cytoskeleton proteins forms a network that gives the red blood cell membrane its shape and flexibility; a defect or deficiency of s. is associated with hereditary spherocytosis and hereditary elliptocytosis; the principal component of the membrane skeleton of red cells. It comprises two units, an alpha unit of MW 240,000 [MIM*182860] and a beta unit of MW 225,000 [MIM*182870].

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spec·trin 'spek-trən n a large cytoskeletal protein that is found on the inner cell membrane of red blood cells and that functions esp. in maintaining cell shape

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spec·trin (spekґtrin) a dimeric contractile protein that with ankyrin, actin, glycophorin, and other cytoskeleton proteins forms a fibrous network beneath the plasma membrane of erythrocytes that maintains cell shape and flexibility; defects of spectrin lead to elliptocytosis, spherocytosis, and pyropoikilocytosis.

Medical dictionary. 2011.

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  • Spectrin — is a cytoskeletal protein that lines the intracellular side of the plasma membrane of many cell types in pentagonal or hexagonal arrangements, forming a scaffolding and playing an important role in maintenance of plasma membrane integrity and… …   Wikipedia

  • spectrin — spectrin. См. спектрин. (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.

  • Spectrin repeat — Pfam box Symbol = Spectrin Name = Spectrin repeat width = caption = Pfam= PF00435 InterPro= IPR002017 SMART= PROSITE = PDOC50083 SCOP = 1aj3 TCDB = OPM family= 79 OPM protein= 2spc PDB=PDB3|1s35A:1063 1166 PDB3|1sjjB:395 500 PDB3|1quuA:401… …   Wikipedia

  • spectrin — Membrane associated dimeric protein (240 and 220 kD) of erythrocytes. Forms a complex with ankyrin, actin, and probably other components of the ‘membrane cytoskeleton’, so that there is a meshwork of proteins underlying the plasma membrane,… …   Dictionary of molecular biology

  • spectrin — /spek trin/, n. Biochem. a rodlike structural protein of the red blood cell membrane. [1968; SPECT(E)R (cf. GHOST def. 12) + IN2] * * * …   Universalium

  • spectrin — noun A contractile protein found on the surface of the membranes of blood cells …   Wiktionary

  • Spectrin — Spec|t|rin [gleichbed. frz. spectre (lat. spectrum = Erscheinung, Phantom); ↑ in (3)], das; s, e; S: Spektrin: aus sog. Geisterzellen isolierte, Netzwerke bildende hochmol. Proteine …   Universal-Lexikon

  • spectrin — /spek trin/, n. Biochem. a rodlike structural protein of the red blood cell membrane. [1968; SPECT(E)R (cf. GHOST def. 12) + IN2] …   Useful english dictionary

  • SPTA1 — Spectrin, alpha, erythrocytic 1 (elliptocytosis 2), also known as SPTA1, is a human gene.cite web | title = Entrez Gene: SPTA1 spectrin, alpha, erythrocytic 1 (elliptocytosis 2)| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene… …   Wikipedia

  • SPTB — Spectrin, beta, erythrocytic (includes spherocytosis, clinical type I), also known as SPTB, is a human gene.cite web | title = Entrez Gene: SPTB spectrin, beta, erythrocytic (includes spherocytosis, clinical type I)| url = http://www.ncbi.nlm.nih …   Wikipedia

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