PMID: 16634148Apr 25, 2006Paper

The vertebrate phototransduction cascade: amplification and termination mechanisms

Reviews of Physiology, Biochemistry and Pharmacology
C K Chen

Abstract

The biochemical cascade which transduces light into a neuronal signal in retinal photoreceptors is a heterotrimeric GTP-binding protein (G protein) signaling pathway called phototransduction. Works from psychophysicists, electrophysiologists, biochemists, and geneticists over several decades have come together to shape our understanding of how photon absorption leads to photoreceptor membrane hyperpolarization. The insights of phototransduction provide the foundation for a mechanistic account of signaling from many other G protein-coupled receptors (GPCR) found throughout nature. The application of reverse genetic techniques has strengthened many historic findings and helped to describe this pathway at greater molecular details. However, many important questions remain to be answered.

Citations

Feb 3, 2011·The Journal of Biological Chemistry·Sekar Ramachandran, Richard A Cerione
May 6, 2008·Vision Research·Theodore G Wensel

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