Absorption and fluorescence spectroscopic characterisation of the circadian blue-light photoreceptor cryptochrome from Drosophila melanogaster (dCry)

2008 ◽  
Vol 352 (1-3) ◽  
pp. 35-47 ◽  
Author(s):  
J. Shirdel ◽  
P. Zirak ◽  
A. Penzkofer ◽  
H. Breitkreuz ◽  
E. Wolf
Keyword(s):  
Drosophila Melanogaster ◽  
Blue Light ◽  
Blue Light Photoreceptor ◽  
Spectroscopic Characterisation

scholarly journals Effects of a 50-Hz electric field on sleep quality and life span mediated by ultraviolet (UV)-A/blue light photoreceptor CRYPTOCHROME in Drosophila melanogaster

2020 ◽  
Author(s):  
Haruhisa Kawasaki ◽  
Hideyuki Okano ◽  
Takaki Nedachi ◽  
Yuzo Nakagawa-Yagi ◽  
Akikuni Hara ◽  
...  
Keyword(s):  
Drosophila Melanogaster ◽  
Electric Field ◽  
Sleep Quality ◽  
Blue Light ◽  
Electric Fields ◽  
Molecular Mechanisms ◽  
Constant Electric Field ◽  
Metabolome Analysis ◽  
Beneficial Effects ◽  
Blue Light Photoreceptor

AbstractAlthough electric fields (EF) exert beneficial effects on animal wound healing and differentiation, the molecular mechanisms of these effects have remained unclear for years. Therefore, we aimed to elucidate the molecular mechanisms underlying these effects in Drosophila melanogaster as a genetic animal model. The sleep quality of wild-type (WT) flies was improved by exposure to a 50-Hz (35 kv/m) constant electric field during the daytime, but not during the night. This effect was undetectable in Cryptochrome mutant (Cryb) flies. Exposure to a 50-Hz electric field under low nutrient conditions elongated the lifespan of male and female WT flies by ~18%, but not of three diferrent Cry mutants and Cry RNAi strains. Metabolome analysis indicated that the adenosine triphosphate (ATP) content was 5-fold higher in intact WT than Cry gene mutant strains exposed to an electric field.A putative magnetoreceptor protein and UV-A/blue light photoreceptor, CRYPTOCHROME (CRY) is involved in electric field receptors in animals. The present findings constitute hitherto unknown genetic evidence of a CRY-based system that is electric-field sensitive in animals.

Identification of Six New Photoactive Yellow ProteinsDiversity and StructureFunction Relationships in a Bacterial Blue Light Photoreceptor

2008 ◽  
Vol 84 (4) ◽  
pp. 956-969 ◽  
Author(s):  
Masato Kumauchi ◽  
Miwa T. Hara ◽  
Page Stalcup ◽  
Aihua Xie ◽  
Wouter D. Hoff
Keyword(s):  
Blue Light ◽  
Blue Light Photoreceptor

Is the photoactive yellow protein a UV-B/blue light photoreceptor?

2011 ◽  
Vol 10 (4) ◽  
pp. 464 ◽  
Author(s):  
Elizabeth C. Carroll ◽  
Marijke Hospes ◽  
Carmen Valladares ◽  
Klaas J. Hellingwerf ◽  
Delmar S. Larsen
Keyword(s):  
Blue Light ◽  
Protein A ◽  
Photoactive Yellow Protein ◽  
Blue Light Photoreceptor

scholarly journals Manipulation of the Blue Light Photoreceptor Cryptochrome 2 in Tomato Affects Vegetative Development, Flowering Time, and Fruit Antioxidant Content

2004 ◽  
Vol 137 (1) ◽  
pp. 199-208 ◽  
Author(s):  
Leonardo Giliberto ◽  
Gaetano Perrotta ◽  
Patrizia Pallara ◽  
James L. Weller ◽  
Paul D. Fraser ◽  
...  
Keyword(s):  
Flowering Time ◽  
Blue Light ◽  
Vegetative Development ◽  
Blue Light Photoreceptor ◽  
Antioxidant Content ◽  
Cryptochrome 2

scholarly journals Single mutation in a novel bacterial LOV protein yields a singlet oxygen generator

2019 ◽  
Vol 18 (11) ◽  
pp. 2657-2660 ◽  
Author(s):  
Eleonora Consiglieri ◽  
Qianzhao Xu ◽  
Mikkel Bregnhøj ◽  
Michael Westberg ◽  
Peter R. Ogilby ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Blue Light ◽  
Single Mutation ◽  
Facultative Methylotroph ◽  
Blue Light Photoreceptor ◽  
Oxygen Generator ◽  
Singlet Oxygen Generator

The first blue light photoreceptor isolated from Methylobacterium radiotolerans, a pink-pigmented facultative methylotroph, has been turned into an efficient singlet oxygen generator by introducing a single mutation.

Riboflavin-binding sites associated with flagella of Euglena: A candidate for blue-light photoreceptor?

Planta ◽  
1991 ◽  
Vol 185 (1) ◽  
Author(s):  
A. Nebenf�hr ◽  
A. Sch�fer ◽  
P. Galland ◽  
H. Senger ◽  
R. Hertel
Keyword(s):  
Blue Light ◽  
Binding Sites ◽  
Blue Light Photoreceptor

Signaling States of a Short Blue-Light Photoreceptor Protein PpSB1-LOV Revealed from Crystal Structures and Solution NMR Spectroscopy

2016 ◽  
Vol 428 (19) ◽  
pp. 3721-3736 ◽  
Author(s):  
Katrin Röllen ◽  
Joachim Granzin ◽  
Vineet Panwalkar ◽  
Vladimir Arinkin ◽  
Raj Rani ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Crystal Structures ◽  
Blue Light ◽  
Solution Nmr ◽  
Blue Light Photoreceptor ◽  
Solution Nmr Spectroscopy

scholarly journals CRYPTOCHROME mediates behavioral executive choice in response to UV light

2017 ◽  
Vol 114 (4) ◽  
pp. 776-781 ◽  
Author(s):  
Lisa S. Baik ◽  
Keri J. Fogle ◽  
Logan Roberts ◽  
Alexis M. Galschiodt ◽  
Joshua A. Chevez ◽  
...  
Keyword(s):  
Drosophila Melanogaster ◽  
Blue Light ◽  
Uv Light ◽  
Ultraviolet A ◽  
Functional Responses ◽  
Behavioral Avoidance ◽  
Biochemical Assays ◽  
Electrophysiological Responses ◽  
Acute Responses ◽  
Central Brain

Drosophila melanogaster CRYPTOCHROME (CRY) mediates behavioral and electrophysiological responses to blue light coded by circadian and arousal neurons. However, spectroscopic and biochemical assays of heterologously expressed CRY suggest that CRY may mediate functional responses to UV-A (ultraviolet A) light as well. To determine the relative contributions of distinct phototransduction systems, we tested mutants lacking CRY and mutants with disrupted opsin-based phototransduction for behavioral and electrophysiological responses to UV light. CRY and opsin-based external photoreceptor systems cooperate for UV light-evoked acute responses. CRY mediates behavioral avoidance responses related to executive choice, consistent with its expression in central brain neurons.

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