ArticleBiochimica et biophysica acta2006
Functions of carotenoids in xanthorhodopsin and archaerhodopsin, from action spectra of photoinhibition of cell respiration.
Article in Biochimica et biophysica acta, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
20 citing papers in PubMed, 51 citations in OpenAlex.
- Phototrophicity and genomic composition in plant-associated Sphingomonas faeni strains.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026Article
- Carotenoids bind rhodopsins and act as photocycle-accelerating pigments in marine Bacteroidota.Nature microbiology · 2025Article
- Isolation and characterization of a main porin from the outer membrane of Salinibacter ruber.Journal of bioenergetics and biomembranes · 2022Article
- Genome Sequence and Characterization of a Xanthorhodopsin-Containing, Aerobic Anoxygenic PhototrophicMicroorganisms · 2022Article
- Hidden in plain sight-highly abundant and diverse planktonic freshwater Chloroflexi.Microbiome · 2018Article
- Engineering a carotenoid-binding site in Dokdonia sp. PRO95 NaPhotosynthesis research · 2018Article
- Wavelength-dependent photocycle activity of xanthorhodopsin in the visible region.Biochemistry and biophysics reports · 2016Article
- Probing Saltern Brines with an Oxygen Electrode: What Can We Learn about the Community Metabolism in Hypersaline Systems?Life (Basel, Switzerland) · 2016Review
- Diversity and functional analysis of light-driven pumping rhodopsins in marine Flavobacteria.MicrobiologyOpen · 2016Article
- Expression and functioning of retinal-based proton pumps in a saltern crystallizer brine.Extremophiles : life under extreme conditions · 2016Article
- Nonphotosynthetic pigments as potential biosignatures.Astrobiology · 2015Article
- Isolation of a new Pseudomonas halophila strain possess bacteriorhodopsin-like protein by a novel method for screening of photoactive protein producing bacteria.World journal of microbiology & biotechnology · 2014Article
- Removal and reconstitution of the carotenoid antenna of xanthorhodopsin.The Journal of membrane biology · 2011Article
- Reconstitution of gloeobacter rhodopsin with echinenone: role of the 4-keto group.Biochemistry · 2010Article
- Reconstitution of Gloeobacter violaceus rhodopsin with a light-harvesting carotenoid antenna.Biochemistry · 2009Article
- Femtosecond carotenoid to retinal energy transfer in xanthorhodopsin.Biophysical journal · 2009Article
- Crystallographic structure of xanthorhodopsin, the light-driven proton pump with a dual chromophore.Proceedings of the National Academy of Sciences of the United States of America · 2008Article
- Excitation energy-transfer and the relative orientation of retinal and carotenoid in xanthorhodopsin.Biophysical journal · 2008Article
- Chromophore interaction in xanthorhodopsin--retinal dependence of salinixanthin binding.Photochemistry and photobiologyArticle
- Xanthorhodopsin: a bacteriorhodopsin-like proton pump with a carotenoid antenna.Biochimica et biophysica actaArticle
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 3 countries.
Funding
Abstract
The recent discovery of a carotenoid light-harvesting antenna in xanthorhodopsin, a retinal-based proton pump in Salinibacter ruber, made use of photoinhibition of respiration in whole cells to obtain action spectra [Balashov et al. Science 309, (2005) 2061-2064]. Here we provide further details of this phenomenon, and compare action spectra in three different systems where carotenoids have different functions or efficiencies of light-harvesting. The kinetics of light-induced inhibition of respiration in Salinibacter ruber was determined with single short flashes, and the photochemical cross section of the photoreaction was estimated. These measurements confirm that the xanthorhodopsin complex includes no more than a few, and most likely only one, carotenoid molecule, which is far less than the core complex antenna of photosynthetic bacteria. Although the total cross-section of light absorption in the purple bacterium Rhodospirillum rubrum greatly exceeds that in Salinibacter, the cross-sections are roughly equivalent in the shared wavelength range. We show further that despite interaction of bacterioruberin with archaerhodopsin, another retinal-based proton pump, there is no significant energy transfer from this carotenoid. This emphasizes the uniqueness of the salinixanthin-retinal interaction in xanthorhodopsin, and indicates that bacterioruberin in Halorubrum species has a structural or photoprotective rather than energetic role.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.