Rhodopsins: an excitingly versatile protein species for research, development and creative engineering

WJ de Grip, S Ganapathy - Frontiers in Chemistry, 2022 - frontiersin.org
The first member and eponym of the rhodopsin family was identified in the 1930s as the
visual pigment of the rod photoreceptor cell in the animal retina. It was found to be a …

Molecular mechanisms and evolutionary robustness of a color switch in proteorhodopsins

J Mao, X Jin, M Shi, D Heidenreich, LJ Brown… - Science …, 2024 - science.org
Proteorhodopsins are widely distributed photoreceptors from marine bacteria. Their
discovery revealed a high degree of evolutionary adaptation to ambient light, resulting in …

Structural insights into the mechanism and dynamics of proteorhodopsin biogenesis and retinal scavenging

S Hirschi, T Lemmin, N Ayoub, D Kalbermatter… - Nature …, 2024 - nature.com
Microbial ion-pumping rhodopsins (MRs) are extensively studied retinal-binding membrane
proteins. However, their biogenesis, including oligomerisation and retinal incorporation …

Ultrafast terahertz Stark spectroscopy reveals the excited-state dipole moments of retinal in bacteriorhodopsin

J Zhang, P Singh, D Engel… - Proceedings of the …, 2024 - National Acad Sciences
The photoinduced all-trans to 13-cis isomerization of the retinal Schiff base represents the
ultrafast first step in the reaction cycle of bacteriorhodopsin (BR). Extensive experimental …

Conformational Effects on the Absorption Spectra of Phytochromes

S Santra, RN Manna, S Chakrabarty… - The Journal of Physical …, 2024 - ACS Publications
Bacteriophytochrome is a photoreceptor protein that contains the biliverdin (BV)
chromophore as its active component. The spectra of BV upon mutation remain remarkably …

Merocyanines form bacteriorhodopsins with strongly bathochromic absorption maxima

MJ Mackintosh, D Hoischen, HD Martin… - Photochemical & …, 2024 - Springer
There is a need to shift the absorbance of biomolecules to the optical transparency window
of tissue for applications in optogenetics and photo-pharmacology. There are a few …

Induction effects on the absorption maxima of photoreceptor proteins

JR Church, JMH Olsen, I Schapiro - Biophysics and physicobiology, 2023 - jstage.jst.go.jp
Multiscale simulations have been established as a powerful tool to calculate and predict
excitation energies in complex systems such as photoreceptor proteins. In these simulations …

Organic dyes in optogenetics

A Penzkofer, P Hegemann… - Organic Lasers and …, 2024 - iopscience.iop.org
This chapter is an authoritative and extensive review on the use of organic dyes in the new
and exciting field of optogenetics. The authors begin by outlining the essence of …