On the mechanism of photoinduced dimer dissociation in the plant UVR8 photoreceptor [PDF]
Proceedings of the National Academy of Sciences, 2014 Significance In contrast to other chromophore/protein systems in photobiology, the UV-B photoreceptor UV resistance locus 8 (UVR8) utilizes tryptophan residues as light absorbers. The initial step of a signaling pathway that ultimately leads to UV-B protection and damage repair in plants is the breaking of salt bridges that stabilize ...
Voityuk, Alexander A. +2 more
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PLoS ONE, 2022 Using specific photoreceptors, plants can sense light signals fundamental to their growth and development under changing light conditions. Phytochromes sense red and far-red light, cryptochromes and phototropins sense UV-A and blue light, while the UVR8 ...
Peter Beatrice +3 more
doaj +2 more sources
Plant responses to UV-B radiation: signaling, acclimation and stress tolerance
Stress Biology, 2022 Ultraviolet-B (UV-B) light is an intrinsic part of sunlight that reaches the earth’s surface, and affects plant survival and adaptation. How plants respond to UV-B light is regulated by the wavelength, intensity and duration of UV-B radiation, and is ...
Zhiren Chen, Yuan Dong, Xi Huang
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Evolutionary conservation of structure and function of the UVR8 photoreceptor from the liverwort Marchantia polymorpha and the moss Physcomitrella patens [PDF]
, 2017 The ultraviolet-B (UV-B) photoreceptor UV RESISTANCE LOCUS 8 (UVR8) mediates photomorphogenic responses to UV-B in Arabidopsis through differential gene expression, but little is known about UVR8 in other species.
Catherine Cloix +17 more
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Quenching Dynamics of Ultraviolet-Light Perception by UVR8 Photoreceptor [PDF]
The Journal of Physical Chemistry Letters, 2013 UVR8 is a recently discovered UV-B photoreceptor with a homodimer as the active state. UV-B perception of an interfacial tryptophan (W285) causes dissociation of the dimer into two functional monomers. Here, we investigate the molecular mechanism behind UV perception by W285 in UVR8.
Zheyun, Liu +6 more
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Molecular Cloning and Functional Analysis of UV RESISTANCE LOCUS 8 (PeUVR8) from Populus euphratica. [PDF]
PLoS ONE, 2015 Ultraviolet-B (UV-B; 280-315 nm) light, which is an integral part of the solar radiation reaching the surface of the Earth, induces a broad range of physiological responses in plants.
Ke Mao +3 more
doaj +1 more source
Rapid reversion from monomer to dimer regenerates the ultraviolet-B photoreceptor UV RESISTANCE LOCUS8 in intact arabidopsis plants [PDF]
, 2013 Arabidopsis (Arabidopsis thaliana) UV RESISTANCE LOCUS8 (UVR8) is a photoreceptor that specifically mediates photomorphogenic responses to ultraviolet (UV)-B in plants.
Jenkins, G.I., Heilmann, M.
core +1 more source
Mechanisms of UV‐B light‐induced photoreceptor UVR8 nuclear localization dynamics
, 2022 Light regulates the subcellular localization of plant photoreceptors, a key step in light signaling. Ultraviolet‐B radiation (UV‐B) induces the plant photoreceptor UV RESISTANCE LOCUS 8 (UVR8) nuclear accumulation, where it regulates photomorphogenesis ...
Zhang, Chunli +22 more
core +1 more source
Structural insight into UV-B–activated UVR8 bound to COP1
Science Advances, 2022 The CONSTITUTIVE PHOTOMORPHOGENIC 1-SUPPRESSOR OF PHYA-105 (COP1-SPA) complex is a central repressor of photomorphogenesis. This complex acts as an E3 ubiquitin ligase downstream of various light signaling transduced from multiple photoreceptors in plants. How the COP1-SPA activity is regulated by divergent light-signaling pathways remains
Yidong Wang +11 more
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Dynamics and mechanism of light harvesting in UV photoreceptor UVR8
Chemical Science, 2020 The light-harvesting network from distal and peripheral to central tryptophans with transfer efficiencies determined from measured energy-transfer rates.
Xiankun Li +6 more
openaire +3 more sources