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Phototrophy by antenna-containing rhodopsin pumps in aquatic environments

Author

Listed:
  • Ariel Chazan

    (Technion-Israel Institute of Technology)

  • Ishita Das

    (Weizmann Institute of Science)

  • Takayoshi Fujiwara

    (The University of Tokyo)

  • Shunya Murakoshi

    (The University of Tokyo)

  • Andrey Rozenberg

    (Technion-Israel Institute of Technology)

  • Ana Molina-Márquez

    (University of Huelva)

  • Fumiya K. Sano

    (The University of Tokyo)

  • Tatsuki Tanaka

    (The University of Tokyo)

  • Patricia Gómez-Villegas

    (University of Huelva)

  • Shirley Larom

    (Technion-Israel Institute of Technology)

  • Alina Pushkarev

    (Technion-Israel Institute of Technology
    Humboldt-Universität zu Berlin)

  • Partha Malakar

    (The Hebrew University of Jerusalem)

  • Masumi Hasegawa

    (The University of Tokyo
    Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

  • Yuya Tsukamoto

    (The University of Tokyo)

  • Tomohiro Ishizuka

    (The University of Tokyo)

  • Masae Konno

    (The University of Tokyo)

  • Takashi Nagata

    (The University of Tokyo)

  • Yosuke Mizuno

    (Nagoya Institute of Technology)

  • Kota Katayama

    (Nagoya Institute of Technology
    Nagoya Institute of Technology)

  • Rei Abe-Yoshizumi

    (Nagoya Institute of Technology)

  • Sanford Ruhman

    (The Hebrew University of Jerusalem)

  • Keiichi Inoue

    (The University of Tokyo)

  • Hideki Kandori

    (Nagoya Institute of Technology
    Nagoya Institute of Technology)

  • Rosa León

    (University of Huelva)

  • Wataru Shihoya

    (The University of Tokyo)

  • Susumu Yoshizawa

    (The University of Tokyo)

  • Mordechai Sheves

    (Weizmann Institute of Science)

  • Osamu Nureki

    (The University of Tokyo)

  • Oded Béjà

    (Technion-Israel Institute of Technology)

Abstract

Energy transfer from light-harvesting ketocarotenoids to the light-driven proton pump xanthorhodopsins has been previously demonstrated in two unique cases: an extreme halophilic bacterium1 and a terrestrial cyanobacterium2. Attempts to find carotenoids that bind and transfer energy to abundant rhodopsin proton pumps3 from marine photoheterotrophs have thus far failed4–6. Here we detected light energy transfer from the widespread hydroxylated carotenoids zeaxanthin and lutein to the retinal moiety of xanthorhodopsins and proteorhodopsins using functional metagenomics combined with chromophore extraction from the environment. The light-harvesting carotenoids transfer up to 42% of the harvested energy in the violet- or blue-light range to the green-light absorbing retinal chromophore. Our data suggest that these antennas may have a substantial effect on rhodopsin phototrophy in the world’s lakes, seas and oceans. However, the functional implications of our findings are yet to be discovered.

Suggested Citation

  • Ariel Chazan & Ishita Das & Takayoshi Fujiwara & Shunya Murakoshi & Andrey Rozenberg & Ana Molina-Márquez & Fumiya K. Sano & Tatsuki Tanaka & Patricia Gómez-Villegas & Shirley Larom & Alina Pushkarev , 2023. "Phototrophy by antenna-containing rhodopsin pumps in aquatic environments," Nature, Nature, vol. 615(7952), pages 535-540, March.
    • Handle: RePEc:nat:nature:v:615:y:2023:i:7952:d:10.1038_s41586-023-05774-6
    DOI: 10.1038/s41586-023-05774-6
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    Cited by:

    1. Weiming Tu & Jiabao Xu & Ian P. Thompson & Wei E. Huang, 2023. "Engineering artificial photosynthesis based on rhodopsin for CO2 fixation," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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