HulaChrimson: A Chrimson-like cation channelrhodopsin discovered using freshwater metatranscriptomics from Lake Hula [PDF]
Biophysics and PhysicobiologyChrimson is cation-conducting channelrhodopsin (CCR) with the most red-shifted absorption spectrum, rendering itself as one of the most promising optogenetic tools.
Hiroto Takahashi +6 more
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Coupling the Cardiac Voltage-Gated Sodium Channel to Channelrhodopsin-2 Generates Novel Optical Switches for Action Potential Studies [PDF]
Membranes, 2022 Voltage-gated sodium (Na+) channels respond to short membrane depolarization with conformational changes leading to pore opening, Na+ influx, and action potential (AP) upstroke.
Christian vom Dahl +4 more
doaj +2 more sources
Atomistic Insight into the Role of Threonine 127 in the Functional Mechanism of Channelrhodopsin-2 [PDF]
Applied Sciences, 2019 Channelrhodopsins (ChRs) belong to the unique class of light-gated ion channels. The structure of channelrhodopsin-2 from Chlamydomonas reinhardtii (CrChR2) has been resolved, but the mechanistic link between light-induced isomerization of the ...
David Ehrenberg +9 more
doaj +3 more sources
Ultrafast Backbone Protonation in Channelrhodopsin-1 Captured by Polarization Resolved Fs Vis-pump—IR-Probe Spectroscopy and Computational Methods [PDF]
Molecules, 2020 Channelrhodopsins (ChR) are light-gated ion-channels heavily used in optogenetics. Upon light excitation an ultrafast all-trans to 13-cis isomerization of the retinal chromophore takes place.
Till Stensitzki +4 more
doaj +2 more sources
Communications Biology, 2021 Tashiro et al. describe a new channelrhodopsin variant from a terrestrial algal species and the role of the C-terminal domain in regulatory function. This far-blue-shifted channelrhodopsin may contribute to optogenetic tool research in the future.
Rintaro Tashiro +6 more
doaj +1 more source
Communications Biology, 2021 Dreier et al. reports that the anion channelrhodopsin GtACR1 does not undergo a syn-cycle (light adapted ground state) and thus has a more efficient channel behaviour than CrChR2.
Max-Aylmer Dreier +8 more
doaj +1 more source
Bimodal activation of different neuron classes with the spectrally red-shifted channelrhodopsin chimera C1V1 in Caenorhabditis elegans [PDF]
, 2012 The C. elegans nervous system is particularly well suited for optogenetic analyses of circuit function: Essentially all connections have been mapped, and light can be directed at the neuron of interest in the freely moving, transparent animals, while ...
Erbguth, Karen +4 more
core +6 more sources
eLife, 2021 Channelrhodopsins (ChRs) are microbial light-gated ion channels utilized in optogenetics to control neural activity with light . Light absorption causes retinal chromophore isomerization and subsequent protein conformational changes visualized as ...
Kazumasa Oda +47 more
doaj +1 more source
Hemodynamic responses evoked by neuronal stimulation via channelrhodopsin-2 can be independent of intracortical glutamatergic synaptic transmission. [PDF]
PLoS ONE, 2012 Maintenance of neuronal function depends on the delivery of oxygen and glucose through changes in blood flow that are linked to the level of ongoing neuronal and glial activity, yet the underlying mechanisms remain unclear.
Nadia A Scott, Timothy H Murphy
doaj +1 more source
Optogenetics in Alzheimer’s Disease: Focus on Astrocytes
Antioxidants, 2023 Alzheimer’s disease (AD) is the most common form of dementia, resulting in disability and mortality. The global incidence of AD is consistently surging.
Elena Mitroshina +2 more
doaj +1 more source