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Retinal Pigments

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Definition: Photosensitive protein complexes of varied light absorption properties which are expressed in the PHOTORECEPTOR CELLS. They are OPSINS conjugated with VITAMIN A-based chromophores. Chromophores capture photons of light, leading to the activation of opsins and a biochemical cascade that ultimately excites the photoreceptor cells.  not for deposition of pigments in the retina (= RETINITIS PIGMENTOSA)   
Examples Opsins 		Other names Visual Pigments; Pigments, Visual; Pigments, Retinal Photoreceptor; Pigments, Retinal; Photoreceptor Pigments, Retinal; Retinal Photoreceptor Pigments
 
SubstanceCAS Registry & nameCategoriesSourceDrugs*
retinylidene chromophore  0   *Retinoids Retinal Pigments. Biochemistry 1999 Sep 7;38(36):11762-72
A2-E (N-retinylidene-N-retinylethanolamine)  0   *Retinoids Retinal Pigments. Exp Eye Res 1997 Nov;65(5):639-43
metaiodopsin II  0   *Retinal Pigments. Biochemistry 1994 Apr 26;33(16):4940-6
B23 protein, Astyanax fasciatus  0   *Membrane Proteins *Retinal Pigments *Fish Proteins. FEBS Lett 1993 Nov 8;334(1):27-31
tauret  133867-05-7   *Retinoids Taurine/*analogs & derivatives Retinal Pigments. Prog Clin Biol Res 1990;351:471
archaerhodopsin protein, Archaea  0   *Archaeal Proteins Retinal Pigments Archaeal Proteins. Biochem Biophys Res Commun 1988;151(3):1339
iodopsin  1415-94-7   *Rod Opsins Retinal Pigments. Biochemistry. 1996 Nov 19;35(46):14599-607; Methods Enzumol 1982;81:154
retinochrome  56274-73-8 Retinochrome  *Retinal Pigments. J Gen Physiol 1980;75(1):1
porphyropsin  9009-58-9   *Retinal Pigments. Can J Zool 55(5):836;1976; Can J Zool 55(6):1000;1977; Gen Comp Endocrinol 26(2):233;1975; Photochem Photobiol 29(4):695;1979; Rev Can Biol 1979;38(3):185
(S)-N-retinylidene-alpha-(1-naphthyl)ethylamine  51038-73-4 1-Naphthalenemethanamine, N-(3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenylidene)-alpha-methyl-, (S-(all-E))  *Retinoids Retinal Pigments. Biochemistry 12(23):4631-37;1973
N-retinylidene-n-butylamine  36076-04-7 1-Butanamine, N-(3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenylidene)-, (E,E,E,E)  *Retinoids Retinal Pigments. Biochemistry 11(5):848;1972; Biochemistry 14(11):2304;1975; J Am Chem Soc 99(17):5592;1977

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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