Structural basis for the adaptation and function of chlorophyll f in photosystem I

Koji Kato, Toshiyuki Shinoda, Ryo Nagao, Seiji Akimoto, Takehiro Suzuki, Naoshi Dohmae, Min Chen, Suleyman I. Allakhverdiev, Jian-Ren Shen (), Fusamichi Akita (), Naoyuki Miyazaki () and Tatsuya Tomo ()
Additional contact information
Koji Kato: Okayama University
Toshiyuki Shinoda: Tokyo University of Science
Ryo Nagao: Okayama University
Seiji Akimoto: Kobe University
Takehiro Suzuki: Biomolecular Characterization Unit, RIKEN Center for Sustainable Resource Science
Naoshi Dohmae: Biomolecular Characterization Unit, RIKEN Center for Sustainable Resource Science
Min Chen: School of Life and Environmental Sciences, University of Sydney
Suleyman I. Allakhverdiev: K.A. Timiryazev Institute of Plant Physiology RAS
Jian-Ren Shen: Okayama University
Fusamichi Akita: Okayama University
Naoyuki Miyazaki: Osaka University
Tatsuya Tomo: Tokyo University of Science

Nature Communications, 2020, vol. 11, issue 1, 1-10

Abstract: Abstract Chlorophylls (Chl) play pivotal roles in energy capture, transfer and charge separation in photosynthesis. Among Chls functioning in oxygenic photosynthesis, Chl f is the most red-shifted type first found in a cyanobacterium Halomicronema hongdechloris. The location and function of Chl f in photosystems are not clear. Here we analyzed the high-resolution structures of photosystem I (PSI) core from H. hongdechloris grown under white or far-red light by cryo-electron microscopy. The structure showed that, far-red PSI binds 83 Chl a and 7 Chl f, and Chl f are associated at the periphery of PSI but not in the electron transfer chain. The appearance of Chl f is well correlated with the expression of PSI genes induced under far-red light. These results indicate that Chl f functions to harvest the far-red light and enhance uphill energy transfer, and changes in the gene sequences are essential for the binding of Chl f.

Date: 2020
References: Add references at CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.nature.com/articles/s41467-019-13898-5 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-019-13898-5

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-019-13898-5

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().