Na+ Binding and Transport: Insights from Light-Driven Na+-Pumping Rhodopsin

Q Yang, D Chen - Molecules, 2023 - mdpi.com
Na+ plays a vital role in numerous physiological processes across humans and animals,
necessitating a comprehensive understanding of Na+ transmembrane transport. Among the …

Light-gated channelrhodopsin sparks proton-induced calcium release in guard cells

S Huang, L Shen, MRG Roelfsema, D Becker… - Science, 2023 - science.org
Although there has been long-standing recognition that stimuli-induced cytosolic pH
alterations coincide with changes in calcium ion (Ca2+) levels, the interdependence …

Structures of channelrhodopsin paralogs in peptidiscs explain their contrasting K+ and Na+ selectivities

T Morizumi, K Kim, H Li, EG Govorunova… - Nature …, 2023 - nature.com
Kalium channelrhodopsin 1 from Hyphochytrium catenoides (Hc KCR1) is a light-gated
channel used for optogenetic silencing of mammalian neurons. It selects K+ over Na+ in the …

Integrated Bioelectronic and Optogenetic Methods to Study Brain–Body Circuits

QR Zhang, SX Wang, R Chen - ACS nano, 2024 - ACS Publications
The peripheral nervous system, consisting of somatic sensory circuits and autonomic
effector circuits, enables communication between the body's organs and the brain …

The high-light-sensitivity mechanism and optogenetic properties of the bacteriorhodopsin-like channelrhodopsin GtCCR4

T Tanaka, S Hososhima, Y Yamashita, T Sugimoto… - Molecular Cell, 2024 - cell.com
Channelrhodopsins are microbial light-gated ion channels that can control the firing of
neurons in response to light. Among several cation channelrhodopsins identified in …

Channelrhodopsins with distinct chromophores and binding patterns

Y Shan, L Zhao, M Chen, X Li, M Zhang… - Nature Communications, 2024 - nature.com
Channelrhodopsins are popular optogenetic tools in neuroscience, but remain poorly
understood mechanistically. Here we report the cryo-EM structures of channelrhodopsin-2 …

Kalium channelrhodopsins effectively inhibit neurons

S Ott, S Xu, N Lee, I Hong, J Anns, DD Suresh… - Nature …, 2024 - nature.com
The analysis of neural circuits has been revolutionized by optogenetic methods. Light-gated
chloride-conducting anion channelrhodopsins (ACRs)—recently emerged as powerful …

Cation–π Interactions Greatly Influence Ion Transportability of the Light-Driven Sodium Pump KR2: A Molecular Dynamics Study

Y Mei, Y Shen - Journal of Chemical Information and Modeling, 2024 - ACS Publications
Krokinobacter eikastus rhodopsin 2 (KR2) is a typical light-driven sodium pump. Although
wild-type KR2 exhibits high Na+ selectivity, mutagenesis performed on the residues …

Decoupled Ionic and Electronic Pathways for Enhanced Osmotic Energy Harvesting

Z Xie, Z Xiang, X Fu, Z Lin, C Jiao, K Zheng… - ACS Energy …, 2024 - ACS Publications
Methods of reducing nanofluids' internal resistance by mixing conductive nanomaterials will
negatively affect the nanochannel structures and ion transmissions. Herein, a layered …

Interareal synaptic inputs underlying whisking-related activity in the primary somatosensory barrel cortex

M Kawatani, K Horio, M Ohkuma, WR Li… - Journal of …, 2024 - Soc Neuroscience
Body movements influence brain-wide neuronal activities. In the sensory cortex,
thalamocortical bottom-up inputs and motor-sensory top-down inputs are thought to affect …