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Opn5L1 is a retinal receptor that behaves as a reverse and self-regenerating photoreceptor.
Nat Commun
March 2018
Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan.
Most opsins are G protein-coupled receptors that utilize retinal both as a ligand and as a chromophore. Opsins' main established mechanism is light-triggered activation through retinal 11-cis-to-all-trans photoisomerization. Here we report a vertebrate non-visual opsin that functions as a Gi-coupled retinal receptor that is deactivated by light and can thermally self-regenerate.
View Article and Find Full Text PDFA density functional theory study of self-regenerating catalysts LaFe(1-x)M(x)O(3-y) (M = Pd, Rh, Pt).
J Am Chem Soc
November 2011
WPI-Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
Periodic density functional theory was used to investigate the stability and electronic structures of precious-metal atoms in the vicinity of LaFe(1-x)M(x)O(3) (M = Pd, Rh, Pt) perovskite catalyst surfaces. It was found that the surface segregation of Pd and Pt is significantly stabilized by the introduction of O vacancies, whereas the solid-solution phase is favorable for Rh, suggesting an important role of O vacancies in the self-regeneration of Pd and Pt. On the basis of the results, we propose a possible scenario for the self-regeneration of the precious metal in the perovskite catalyst.
View Article and Find Full Text PDFSelf-regenerating Rh- and Pt-based perovskite catalysts for automotive-emissions control.
Angew Chem Int Ed Engl
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Advanced Research & Development Division, Daihatsu Motor Co., Ltd. Ryuo, Gamo, Shiga 520-2593, Japan.
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