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Rhodopsin Oligomerization and Aggregation

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Abstract

Rhodopsin is the light receptor in photoreceptor cells of the retina and a prototypical G protein-coupled receptor. Two types of quaternary structures can be adopted by rhodopsin. If rhodopsin folds and attains a proper tertiary structure, it can then form oligomers and nanodomains within the photoreceptor cell membrane. In contrast, if rhodopsin misfolds, it cannot progress through the biosynthetic pathway and instead will form aggregates that can cause retinal degenerative disease. In this review, emerging views are highlighted on the supramolecular organization of rhodopsin within the membrane of photoreceptor cells and the aggregation of rhodopsin that can lead to retinal degeneration.

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Fig. 1

(This figure is reprinted from (Rakshit et al. 2017), with permission from Elsevier) (Color figure online)

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Fig. 3

(The figure is reprinted from (Gragg and Park 2019), with permission from Elsevier) (Color figure online)

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Funding

This work was funded by a Grant from the National Institutes of Health (R01EY021731).

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Correspondence to Paul S.-H. Park.

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Park, P.SH. Rhodopsin Oligomerization and Aggregation. J Membrane Biol 252, 413–423 (2019). https://doi.org/10.1007/s00232-019-00078-1

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  • DOI: https://doi.org/10.1007/s00232-019-00078-1

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