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Normal and Defective Colour Vision$
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John D. Mollon, Joel Pokorny, and Ken Knoblauch

Print publication date: 2003

Print ISBN-13: 9780198525301

Published to Oxford Scholarship Online: April 2010

DOI: 10.1093/acprof:oso/9780198525301.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 19 October 2021

Electrons and X-Rays Reveal the Structure of Rhodopsin: A Prototypical G Protein-Coupled Receptor-Implications for Colour Vision

Electrons and X-Rays Reveal the Structure of Rhodopsin: A Prototypical G Protein-Coupled Receptor-Implications for Colour Vision

Chapter:
(p.3) Chapter 1 Electrons and X-Rays Reveal the Structure of Rhodopsin: A Prototypical G Protein-Coupled Receptor-Implications for Colour Vision
Source:
Normal and Defective Colour Vision
Author(s):

Jonathan J. Ruprecht

Gebhard F. X. Schertler

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198525301.003.0001

A fundamental aim in vision research is to elucidate the factors that subtly modify the absorption maxima of the visual pigments — the G protein-coupled receptors (GPCRs) responsible for transducing visual stimuli. Humans have four visual pigments, found in the two classes of retinal cells responsible for light detection: rod cells for dim light detection and cones for colour vision. Human rod cells contain rhodopsin, which is important for vision in dim light and is currently the most intensively studied visual pigment. This chapter reviews the structural work that has been carried out on rhodopsin, with a view towards spectral tuning.

Keywords:   colour vision, rhodopsin, G protein-coupled receptors, visual pigments, cones, rod cells, spectral tuning

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