Microbial and animal rhodopsins: structures, functions, and molecular mechanisms

OP Ernst, DT Lodowski, M Elstner, P Hegemann… - Chemical …, 2014 - ACS Publications
Organisms of all domains of life use photoreceptor proteins to sense and respond to light.
The light-sensitivity of photoreceptor proteins arises from bound chromophores such as …

Infrared difference spectroscopy of proteins: from bands to bonds

VA Lorenz-Fonfria - Chemical reviews, 2020 - ACS Publications
Infrared difference spectroscopy probes vibrational changes of proteins upon their
perturbation. Compared with other spectroscopic methods, it stands out by its sensitivity to …

Structural basis for channel conduction in the pump-like channelrhodopsin ChRmine

KE Kishi, YS Kim, M Fukuda, M Inoue, T Kusakizako… - Cell, 2022 - cell.com
ChRmine, a recently discovered pump-like cation-conducting channelrhodopsin, exhibits
puzzling properties (large photocurrents, red-shifted spectrum, and extreme light sensitivity) …

Dynamics and mechanism of a light-driven chloride pump

S Mous, G Gotthard, D Ehrenberg, S Sen, T Weinert… - Science, 2022 - science.org
Chloride transport by microbial rhodopsins is an essential process for which molecular
details such as the mechanisms that convert light energy to drive ion pum** and ensure …

Femtosecond-to-millisecond structural changes in a light-driven sodium pump

P Skopintsev, D Ehrenberg, T Weinert, D James… - Nature, 2020 - nature.com
Light-driven sodium pumps actively transport small cations across cellular membranes.
These pumps are used by microorganisms to convert light into membrane potential and …

Microbial rhodopsins: diversity, mechanisms, and optogenetic applications

EG Govorunova, OA Sineshchekov, H Li… - Annual review of …, 2017 - annualreviews.org
Microbial rhodopsins are a family of photoactive retinylidene proteins widespread
throughout the microbial world. They are notable for their diversity of function, using …

Conversion of channelrhodopsin into a light-gated chloride channel

J Wietek, JS Wiegert, N Adeishvili, F Schneider… - Science, 2014 - science.org
The field of optogenetics uses channelrhodopsins (ChRs) for light-induced neuronal
activation. However, optimized tools for cellular inhibition at moderate light levels are …

Structural insights into ion conduction by channelrhodopsin 2

O Volkov, K Kovalev, V Polovinkin, V Borshchevskiy… - Science, 2017 - science.org
INTRODUCTION Ion channels are integral membrane proteins that upon stimulation
modulate the flow of ions across the cell or organelle membrane. The resulting electrical …

Biophysics of channelrhodopsin

F Schneider, C Grimm… - Annual review of …, 2015 - annualreviews.org
Channelrhodopsins (ChRs) are directly light-gated ion channels that function as sensory
photoreceptors in flagellated green algae, allowing these algae to identify optimal light …

Time-resolved serial femtosecond crystallography reveals early structural changes in channelrhodopsin

K Oda, T Nomura, T Nakane, K Yamashita, K Inoue… - Elife, 2021 - elifesciences.org
Channelrhodopsins (ChRs) are microbial light-gated ion channels utilized in optogenetics to
control neural activity with light. Light absorption causes retinal chromophore isomerization …