capsid


capsid
See virion.

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cap·sid 'kap-səd n the protein shell of a virus particle that surrounds its nucleic acid
cap·sid·al -səd-əl adj

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cap·sid (kapґsid) [L. capsa a box] the shell of protein that protects the nucleic acid of a virus; it may have helical or icosahedral symmetry and is composed of structural units, or capsomers. According to the number of subunits possessed by capsomers, they are called dimers (2), trimers (3), pentamers (5), or hexamers (6).

Electron microscopy and computer-generated three-dimensional image reconstructions of several icosahedral capsids showing the capsid symmetry and the individual capsomeres. (1), Equine herpesvirus nucleocapsid; (2), simian rotavirus; (3), reovirus type 1 virion; (4), reovirus intermediate subviral particle; (5), reovirus core (inner capsid) particle; (6), human papillomavirus type 19 (papovavirus); (7), mouse polyomavirus (papovavirus); (8), cauliflower mosaic virus. (Bar equals 50 nm.)


Medical dictionary. 2011.

Look at other dictionaries:

  • capsid — capsid. См. капсид. (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.

  • Capsid — Capsid, Proteinhülle der Virusnucleinsäure; besteht jeweils aus einer Anzahl von spezifischen Proteinmolekülen, den Proteinuntereinheiten oder Capsomeren, die in genau festgelegter, sich wiederholender Reihenfolge um die Nucleinsäure herum… …   Deutsch wörterbuch der biologie

  • capsid — 1964, from Fr. capside (1959), from L. capsa box (see CASE (Cf. case) (2)) …   Etymology dictionary

  • capsid —  Capsid  Капсид   Белковая оболочка вирусной частицы …   Толковый англо-русский словарь по нанотехнологии. - М.

  • capsid — [kap′sid] n. the outer coat of a virus usually composed of layers of various proteins …   English World dictionary

  • Capsid — Schematic of a Cytomegalovirus 3D model of Helical capsid structure …   Wikipedia

  • Capsid — Schema eines ikosaedrischen Kapsids. Die Kugeln entsprechen den einzelnen Kapsomeren Als Kapsid oder Capsid (von lat. capsula: kleine Kapsel) bezeichnet man eine komplexe, regelmäßige Proteinstruktur bei Viren, die der Verpackung des Virusgenoms… …   Deutsch Wikipedia

  • capsid — A protein coat that covers the nucleoprotein core or nucleic acid of a virion. Commonly shows icosahedral symmetry and may itself be enclosed in an envelope (as in the Togaviridae). The capsid is built up of subunits (some integer multiple of 60 …   Dictionary of molecular biology

  • Capsid — Cap|sid [lat. capsa = Kasten, Kapsel], das; s, e; S: Kapsid: die aus hochmol. Proteinen (MG 107) bestehende, aus Untereinheiten (Capsomere, MG >104) aufgebaute Hülle um den Nukleinsäurekern von Viren. * * * Capsid   [lateinisch] das, (e)s/ e,… …   Universal-Lexikon

  • capsid — The protein coat of a virus. The capsid often determines the shape of the virus. Synonym: coat protein …   Glossary of Biotechnology