ArticleNature microbiology2025
Structural insights into light harvesting by antenna-containing rhodopsins in marine Asgard archaea.
Article in Nature microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Fast-nnt: fast, reproducible, and scalable neighbour network analysis in R, Python, and CLI.Bioinformatics (Oxford, England) · 2026Article
- Vibronic Reorganization Suppresses Salinixanthin-to-Retinal Energy Transfer in the Freshwater Kin4B8 Xanthorhodopsin.The journal of physical chemistry letters · 2026Article
- Article
- Light-harvesting by antenna-containing xanthorhodopsin from an Antarctic Pseudanabaenaceae cyanobacterium.Communications biology · 2025Article
- Protonation-Enhanced Energy Transfer in Xanthorhodopsin Kin4B8.The journal of physical chemistry letters · 2025Article
- Opsins are Phospholipid Scramblases in All Domains of Life.bioRxiv : the preprint server for biology · 2025Article
- Structural and spectroscopic basis of excitation energy transfer in microbial rhodopsins binding xanthophylls.Chemical science · 2025Article
- Carotenoids bind rhodopsins and act as photocycle-accelerating pigments in marine Bacteroidota.Nature microbiology · 2025Article
- Structural insights into light harvesting by antenna-containing rhodopsins in marine Asgard archaea.Nature microbiology · 2025Article
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Authors and funding
25 authors.
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Abstract
Aquatic bacterial rhodopsin proton pumps harvest light energy for photoheterotrophic growth and are known to contain hydroxylated carotenoids that expand the wavelengths of light utilized, but these have not been characterized in marine archaea. Here, by combining a marine chromophore extract with purified archaeal rhodopsins identified in marine metagenomes, we show light energy transfer from diverse hydroxylated carotenoids to heimdallarchaeial rhodopsins (HeimdallRs) from uncultured marine planktonic members of 'Candidatus Kariarchaeaceae' ('Candidatus Asgardarchaeota'). These light-harvesting antennas absorb in the blue-light range and transfer energy to the green-light-absorbing retinal chromophore within HeimdallRs, enabling the use of light that is otherwise unavailable to the rhodopsin. Furthermore, we show elevated proton pumping by the antennas in HeimdallRs under white-light illumination, which better simulates the light conditions encountered by these archaea in their natural habitats. Our results indicate that light-harvesting antennas in microbial rhodopsins exist in families beyond xanthorhodopsins and proteorhodopsins and are present in both marine bacteria and archaea.
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