Results 21 to 30 of about 18,917 (205)

Eumetazoan Cryptochrome Phylogeny and Evolution [PDF]

open access: yesGenome Biology and Evolution, 2015
Cryptochromes (Crys) are light sensing receptors that are present in all eukaryotes. They mainly absorb light in the UV/blue spectrum. The extant Crys consist of two subfamilies, which are descendants of photolyases but are now involved in the regulation of circadian rhythms. So far, knowledge about the evolution, phylogeny, and expression of cry genes
Haug, Marion F   +3 more
openaire   +2 more sources

Interaction of two photoreceptors in the regulation of bacterial photosynthesis genes [PDF]

open access: yes, 2012
The expression of photosynthesis genes in the facultatively photosynthetic bacterium Rhodobacter sphaeroides is controlled by the oxygen tension and by light quantity. Two photoreceptor proteins, AppA and CryB, have been identified in the past, which are
Frühwirth, Sebastian   +5 more
core   +1 more source

Monte-Carlo wavefunction approach for the spin dynamics of recombining radicals

open access: yesNew Journal of Physics, 2020
We adapt the Monte-Carlo wavefunction (MCWF) approach to treat the open-system spin dynamics of radical pairs subject to spin-selective recombination reactions.
Robert H Keens, Daniel R Kattnig
doaj   +1 more source

Beyond the photocycle-how cryptochromes regulate photoresponses in plants? [PDF]

open access: yes, 2018
Cryptochromes (CRYs) are blue light receptors that mediate light regulation of plant growth and development. Land plants possess various numbers of cryptochromes, CRY1 and CRY2, which serve overlapping and partially redundant functions in different plant
Gu, Lianfeng   +6 more
core   +1 more source

Light-responsive expression atlas reveals the effects of light quality and intensity in Kalanchoë fedtschenkoi, a plant with crassulacean acid metabolism. [PDF]

open access: yes, 2020
BackgroundCrassulacean acid metabolism (CAM), a specialized mode of photosynthesis, enables plant adaptation to water-limited environments and improves photosynthetic efficiency via an inorganic carbon-concentrating mechanism.
Borland, Anne M   +17 more
core   +2 more sources

The Mammalian Circadian Timing System and the Suprachiasmatic Nucleus as Its Pacemaker

open access: yesBiology, 2019
The past twenty years have witnessed the most remarkable breakthroughs in our understanding of the molecular and cellular mechanisms that underpin circadian (approximately one day) time-keeping.
Michael H. Hastings   +2 more
doaj   +1 more source

The clock genes Period 2 and Cryptochrome 2 differentially balance bone formation [PDF]

open access: yes, 2010
Background: Clock genes and their protein products regulate circadian rhythms in mammals but have also been implicated in various physiological processes, including bone formation.
Maronde, Erik   +7 more
core   +1 more source

Cryptochrome, Phytochrome, and Anthocyanin Production [PDF]

open access: yesPlant Physiology, 1991
Anthocyanin production in cabbage (Brassica oleracea L.) and tomato (Lycopersicon esculentum Mill.) seedlings exposed to prolonged irradiations was studied under conditions that allowed discrimination, within certain limits, between the contribution of cryptochrome and phytochrome in the photoregulation of the response. The results of the study provide
Mancinelli A. L., Rossi F., Moroni A.
openaire   +3 more sources

Small Molecule Modulators of the Circadian Molecular Clock With Implications for Neuropsychiatric Diseases

open access: yesFrontiers in Molecular Neuroscience, 2019
Circadian rhythms regulate many biological processes and play fundamental roles in behavior, physiology, and metabolism. Such periodicity is critical for homeostasis because disruption or misalignment of the intrinsic rhythms is associated with the onset
Hyo Kyeong Cha   +4 more
doaj   +1 more source

The structural and functional roles of the flavin cofactor FAD in mammalian cryptochromes

open access: yesFrontiers in Molecular Biosciences, 2023
The importance of circadian rhythms in human health and disease calls for a thorough understanding of the underlying molecular machinery, including its key components, the flavin adenine dinucleotide (FAD)-containing flavoproteins cryptochrome 1 and 2 ...
Giulia Calloni, R. Martin Vabulas
doaj   +1 more source

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