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 …

Stabilization of G protein-coupled receptors by point mutations

FM Heydenreich, Z Vuckovic, M Matkovic… - Frontiers in …, 2015 - frontiersin.org
G protein-coupled receptors (GPCRs) are flexible integral membrane proteins involved in
transmembrane signaling. Their involvement in many physiological processes makes them …

G-protein coupled receptor solubilization and purification for biophysical analysis and functional studies, in the total absence of detergent

M Jamshad, J Charlton, YP Lin, SJ Routledge… - Bioscience …, 2015 - portlandpress.com
G-protein coupled receptors (GPCRs) constitute the largest class of membrane proteins and
are a major drug target. A serious obstacle to studying GPCR structure/function …

Lipid bilayer composition modulates the unfolding free energy of a knotted α-helical membrane protein

MR Sanders, HE Findlay… - Proceedings of the …, 2018 - National Acad Sciences
α-Helical membrane proteins have eluded investigation of their thermodynamic stability in
lipid bilayers. Reversible denaturation curves have enabled some headway in determining …

Folding and stability of integral membrane proteins in amphipols

JH Kleinschmidt, JL Popot - Archives of biochemistry and biophysics, 2014 - Elsevier
Amphipols (APols) are a family of amphipathic polymers designed to keep transmembrane
proteins (TMPs) soluble in aqueous solutions in the absence of detergent. APols have …

Recent advances in biophysical studies of rhodopsins–Oligomerization, folding, and structure

LS Brown, OP Ernst - Biochimica et Biophysica Acta (BBA)-Proteins and …, 2017 - Elsevier
Retinal-binding proteins, mainly known as rhodopsins, function as photosensors and ion
transporters in a wide range of organisms. From halobacterial light-driven proton pump …

Photonic potential of haloarchaeal pigment bacteriorhodopsin for future electronics: A review

R Ashwini, S Vijayanand, J Hemapriya - Current microbiology, 2017 - Springer
Haloarchaea are known for its adaptation in extreme saline environment. Halophilic archaea
produces carotenoid pigments and proton pumps to protect them from extremes of salinity …

Purification and structural study of the voltage-sensor domain of the human KCNQ1 potassium ion channel

D Peng, JH Kim, BM Kroncke, CL Law, Y Xia… - Biochemistry, 2014 - ACS Publications
KCNQ1 (also known as KV7. 1 or KVLQT1) is a voltage-gated potassium channel modulated
by members of the KCNE protein family. Among multiple functions, KCNQ1 plays a critical …

Free-energy changes of bacteriorhodopsin point mutants measured by single-molecule force spectroscopy

DR Jacobson, TT Perkins - Proceedings of the National …, 2021 - National Acad Sciences
Single amino acid mutations provide quantitative insight into the energetics that underlie the
dynamics and folding of membrane proteins. Chemical denaturation is the most widely used …

Folding energetics and oligomerization of polytopic α-helical transmembrane proteins

J Neumann, N Klein, DE Otzen, D Schneider - Archives of biochemistry and …, 2014 - Elsevier
While interactions of single-span transmembrane helices have been studied to a significant
extent in the past years, the folding of polytopic α-helical transmembrane proteins, as well as …