Extended Data Fig. 2: Spectroscopic characterization of Kin4B8-xanthorhodopsin and HeimdallR1-G141F with hydroxylated carotenoids.
From: Structural insights into light harvesting by antenna-containing rhodopsins in marine Asgard archaea
a, Absorbance change (up) and fluorescence excitation spectra (bottom) of Kin4B8-xanthorhodopsin upon incubation with (orange) or without (purple) diatoxanthin. b, Absorbance change (up) and fluorescence excitation spectra (bottom) of Kin4B8-xanthorhodopsin upon incubation with (orange) or without (purple) fucoxanthin. c, Absorbance change (up) and fluorescence excitation spectra (bottom) of HeimdallR1-G141F upon incubation with (orange) or without (purple) lutein; emissions were recorded at 720 nm.
