Animal cryptochromes: Divergent roles in light perception, circadian timekeeping and beyond
Michael AK, Fribourgh JL, Van Gelder RN, Partch CL. 2017. Animal cryptochromes: Divergent roles in light perception, circadian timekeeping and beyond. Photochemistry and Photobiology. 93(1), 128–140.
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https://doi.org/10.1111/php.12677
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Journal Article
| Published
| English
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Author
Michael, Alicia K.ISTA;
Fribourgh, Jennifer L.;
Van Gelder, Russell N.;
Partch, Carrie L.
Abstract
Cryptochromes are evolutionarily related to the light‐dependent DNA repair enzyme photolyase, serving as major regulators of circadian rhythms in insects and vertebrate animals. There are two types of cryptochromes in the animal kingdom: <jats:italic>Drosophila</jats:italic>‐like CRYs that act as nonvisual photopigments linking circadian rhythms to the environmental light/dark cycle, and vertebrate‐like CRYs that do not appear to sense light directly, but control the generation of circadian rhythms by acting as transcriptional repressors. Some animals have both types of CRYs, while others possess only one. Cryptochromes have two domains, the photolyase homology region (PHR) and an extended, intrinsically disordered C‐terminus. While all animal CRYs share a high degree of sequence and structural homology in their PHR domains, the C‐termini are divergent in both length and sequence identity. Recently, cryptochrome function has been shown to extend beyond its pivotal role in circadian clocks, participating in regulation of the DNA damage response, cancer progression and glucocorticoid signaling, as well as being implicated as possible magnetoreceptors. In this review, we provide a historical perspective on the discovery of animal cryptochromes, examine similarities and differences of the two types of animal cryptochromes and explore some of the divergent roles for this class of proteins.
Publishing Year
Date Published
2017-02-01
Journal Title
Photochemistry and Photobiology
Volume
93
Issue
1
Page
128-140
ISSN
eISSN
IST-REx-ID
Cite this
Michael AK, Fribourgh JL, Van Gelder RN, Partch CL. Animal cryptochromes: Divergent roles in light perception, circadian timekeeping and beyond. Photochemistry and Photobiology. 2017;93(1):128-140. doi:10.1111/php.12677
Michael, A. K., Fribourgh, J. L., Van Gelder, R. N., & Partch, C. L. (2017). Animal cryptochromes: Divergent roles in light perception, circadian timekeeping and beyond. Photochemistry and Photobiology. Wiley. https://doi.org/10.1111/php.12677
Michael, Alicia K., Jennifer L. Fribourgh, Russell N. Van Gelder, and Carrie L. Partch. “Animal Cryptochromes: Divergent Roles in Light Perception, Circadian Timekeeping and Beyond.” Photochemistry and Photobiology. Wiley, 2017. https://doi.org/10.1111/php.12677.
A. K. Michael, J. L. Fribourgh, R. N. Van Gelder, and C. L. Partch, “Animal cryptochromes: Divergent roles in light perception, circadian timekeeping and beyond,” Photochemistry and Photobiology, vol. 93, no. 1. Wiley, pp. 128–140, 2017.
Michael AK, Fribourgh JL, Van Gelder RN, Partch CL. 2017. Animal cryptochromes: Divergent roles in light perception, circadian timekeeping and beyond. Photochemistry and Photobiology. 93(1), 128–140.
Michael, Alicia K., et al. “Animal Cryptochromes: Divergent Roles in Light Perception, Circadian Timekeeping and Beyond.” Photochemistry and Photobiology, vol. 93, no. 1, Wiley, 2017, pp. 128–40, doi:10.1111/php.12677.
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