rhodopsin

rhodopsin
= visual purple; n.
a pigment in the retina of the eye, within the rods, consisting of retinal – an aldehyde of retinol (vitamin A) – and a protein. The presence of rhodopsin is essential for vision in dim light. It is bleached in the presence of light and this stimulates nervous activity in the rods.

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  • Rhodopsin — Rhodopsin, also known as visual purple, is a pigment of the retina that is responsible for both the formation of the photoreceptor cells and the first events in the perception of light. Rhodopsins belong to the G protein coupled receptor family… …   Wikipedia

  • Rhodopsin — Dreidimensionales Strukturmodell des Backbones von Rhodopsin. In der …   Deutsch Wikipedia

  • Rhodopsin — Rho*dop sin, n. [Gr. ro don rose + w ps eye.] (Physiol.) The visual purple. See under {Visual}. [1913 Webster] …   The Collaborative International Dictionary of English

  • rhodopsin — rhodopsin. См. родопсин. (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.

  • Rhodopsin — Rhodopsīn, s. Sehpurpur …   Kleines Konversations-Lexikon

  • Rhodopsin — Rhodopsin, Sehpurpur, in den Stäbchen der Wirbeltiere und in den Lichtsinneszellen verschiedener Wirbelloser nachgewiesener ⇒ Sehfarbstoff. R. ist ein Chromoprotein, das aus dem Protein Opsin und dem Aldehyd des Retinols, dem Retinal, besteht.… …   Deutsch wörterbuch der biologie

  • Rhodopsin — vgl. Sehpurpur …   Das Wörterbuch medizinischer Fachausdrücke

  • rhodopsin — [rō däp′sin] n. [< Gr rhodon, a rose (see RHODA) + opsis, sight (see OPSIS) + IN1] a purplish, photosensitive protein pigment that is essential for vision in dim light, found in the rods of the retina: also called visual purple: see OPSIN …   English World dictionary

  • rhodopsin — /roh dop sin/, n. Biochem. a bright red photosensitive pigment found in the rod shaped cells of the retina of certain fishes and most higher vertebrates: it is broken down by the action of dim light into retinal and opsin. Also called visual… …   Universalium

  • Rhodopsin — Rho|d|op|sin [↑ rhod u. ↑ Opsin], das; s, e; Syn.: Sehpurpur: ein tiefrotes lichtempfindliches Chromoprotein (MG 28 600) mit 348 Aminosäuren) mit 11 cis Retinal als prosthetischer Gruppe, die nach Art einer Schiff Base an einen Lysinrest des… …   Universal-Lexikon

  • rhodopsin — Visual Vis u*al, a. [L. visualis, from visus a seeing, sight: cf. F. visuel. See {Vision}.] 1. Of or pertaining to sight; used in sight; serving as the instrument of seeing; as, the visual nerve. [1913 Webster] The air, Nowhere so clear,… …   The Collaborative International Dictionary of English

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