Lexic.us

Definition of Retinene

1. Noun. Either of two yellow to red retinal pigments formed from rhodopsin by the action of light.

Definition of Retinene

1. a pigment in the retina [n -S]

Medical Definition of Retinene

1. A carotenoid constituent of visual pigments. It is the oxidised form of retinol which functions as the active component of the visual cycle. It is bound to the protein opsin forming the complex rhodopsin. When stimulated by visible light, the retinal component of the rhodopsin complex undergoes isomerization at the 11-position of the double bond to the cis-form; this is reversed in "dark" reactions to return to the native trans-configuration. Chemical name: Retinal (03 Jul 1999)

Lexicographical Neighbors of Retinene

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