Chlorophyll derivatives as visual pigments for super vision in the red

Ilyas Washington; Jilin Zhou; Steffen Jockusch; Nicholas J. Turro; Koji Nakanishi; Janet R. Sparrow

doi:10.1039/B618104J

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Photochemical & Photobiological Sciences

Issue 7, 2007

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Chlorophyll derivatives as visual pigments for super vision in the red

Ilyas Washington , Jilin Zhou , Steffen Jockusch , Nicholas J. Turro , Koji Nakanishi and Janet R. Sparrow

Photochem. Photobiol. Sci., 2007, 6, 775-779

DOI: 10.1039/B618104J
Received 12 Dec 2006, Accepted 11 Apr 2007
First published on the web 01 May 2007

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The primary event in vision is light-initiated activation of visual pigments. All visual pigments consist of the protein opsin bound to 11-cis-retinal and are responsible for initiating the transformation of light into an electrical signal. In a mouse model, we show that derivatives of chlorophyll can act as visual pigments initiating the transformation of light into an electrical signal and thus change the primary event in vision to initial activation of a chlorophyll derivative. Electroretinographic b-wave amplitudes recorded in response to red and blue light were two-fold greater in mice administered chlorin e₆, which accumulated in photoreceptor outer segments.

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Ilyas Washington
Jilin Zhou
Steffen Jockusch
Nicholas J. Turro
Koji Nakanishi
Janet R. Sparrow

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Photochemical & Photobiological Sciences

Chlorophyll derivatives as visual pigments for super vision in the red

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