Taito Urui

Reordering of Retinal Reactions Underlies Reversal of Proton-Pump Directionality

Abstract Light-driven proton-pumping rhodopsins transport protons either outward or inward across membranes, but the molecular determinants of transport vectoriality remain unclear. An outward proton-pumping rhodopsin from Pseudomonas putida (PspR) was previously converted into a...

Structural inhomogeneity and inter-chromophore electronic/protein-mediated coupling in the Gloeobacter rhodopsin–canthaxanthin complex: Insights from resonance Raman spectroscopy

Microbial rhodopsins are photoreceptive membrane proteins that utilize retinal as a chromophore to absorb light and drive diverse photochemical functions. Recent studies have revealed that some microbial rhodopsins bind carotenoids in addition to retinal. The bound carotenoids ma...