ArticleBiophysics and physicobiology2021
Light-induced difference FTIR spectroscopy of primate blue-sensitive visual pigment at 163 K.
Article in Biophysics and physicobiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 6 citations in OpenAlex.
- Deprotonation of retinal Schiff base and structural dynamics in the early photoreaction of primate blue cone visual pigment.Biophysical journal · 2025Article
- Schiff base deprotonation and structural changes in a mouse UV-sensitive cone visual pigment revealed by FTIR spectroscopy at 77 K.Biophysics and physicobiology · 2025Article
- Ultrafast transient absorption spectra and kinetics of human blue cone visual pigment at room temperature.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Glu102Biochemistry · 2024Article
- Early Proton Transfer Reaction in a Primate Blue-Sensitive Visual Pigment.Biochemistry · 2022Article
- Rhodopsins: An Excitingly Versatile Protein Species for Research, Development and Creative Engineering.Frontiers in chemistry · 2022Review
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Structural studies of color visual pigments lag far behind those of rhodopsin for scotopic vision. Using difference FTIR spectroscopy at 77 K, we report the first structural data of three primate color visual pig-ments, monkey red (MR), green (MG), and blue (MB), where the batho-intermediate (Batho) exhibits photo-equilibrium with the unphotolyzed state. This photo-chromic property is highly advantageous for limited samples since the signal-to-noise ratio is improved, but may not be applicable to late intermediates, because of large structural changes to proteins. Here we report the photochromic property of MB at 163 K, where the BL intermediate, formed by the relaxation of Batho, is in photoequilibrium with the initial MB state. A comparison of the difference FTIR spectra at 77 and 163 K provided information on what happens in the process of transition from Batho to BL in MB. The coupled C
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