Evidence map›Paper›PMID 33257675›Full record

ArticleNature communications2020

Light-driven formation of manganese oxide by today's photosystem II supports evolutionarily ancient manganese-oxidizing photosynthesis.

Petko Chernev, Sophie Fischer, Jutta Hoffmann, Nicholas Oliver, Ricardo Assunção, Boram Yu, Robert L Burnap, Ivelina Zaharieva, Dennis J Nürnberg, Michael Haumann and 1 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
5.7field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Structure of HEPES-Reduced δ‑MnOChemistry of materials : a publication of the American Chemical Society · 2026
    Article
  3. Article
  4. Review
  5. Characterizing Biogenic MnOx Produced byLife (Basel, Switzerland) · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. Competitive interaction of Mn(II) and Fe(II) cations with the high-affinity Mn-binding site of the photosystem II: evolutionary aspect.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Time-resolved comparative molecular evolution of oxygenic photosynthesis.Biochimica et biophysica acta. Bioenergetics · 2021
    Article
  15. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 3 countries.

Petko ChernevPhysics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
Sophie FischerPhysics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
Jutta HoffmannPhysics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
Nicholas OliverPhysics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
Ricardo AssunçãoPhysics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
Boram YuPhysics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
Robert L BurnapDepartment of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, 74078-4034, USA.ORCID http://orcid.org/0000-0001-6715-5961
Ivelina ZaharievaPhysics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.ORCID http://orcid.org/0000-0002-4745-5307
Dennis J NürnbergPhysics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.ORCID http://orcid.org/0000-0001-8644-3424
Michael HaumannPhysics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
Holger DauPhysics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany. holger.dau@fu-berlin.de.ORCID http://orcid.org/0000-0001-6482-7494
Freie Universität Berlin · DEOklahoma State University · USUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Water oxidation and concomitant dioxygen formation by the manganese-calcium cluster of oxygenic photosynthesis has shaped the biosphere, atmosphere, and geosphere. It has been hypothesized that at an early stage of evolution, before photosynthetic water oxidation became prominent, light-driven formation of manganese oxides from dissolved Mn(2+) ions may have played a key role in bioenergetics and possibly facilitated early geological manganese deposits. Here we report the biochemical evidence for the ability of photosystems to form extended manganese oxide particles. The photochemical redox processes in spinach photosystem-II particles devoid of the manganese-calcium cluster are tracked by visible-light and X-ray spectroscopy. Oxidation of dissolved manganese ions results in high-valent Mn(III,IV)-oxide nanoparticles of the birnessite type bound to photosystem II, with 50-100 manganese ions per photosystem. Having shown that even today's photosystem II can form birnessite-type oxide particles efficiently, we propose an evolutionary scenario, which involves manganese-oxide production by ancestral photosystems, later followed by down-sizing of protein-bound manganese-oxide nanoparticles to finally yield today's catalyst of photosynthetic water oxidation.

Indexed as

Light2,6-DichloroindophenolAtmosphereCatalysisEvolution, MolecularIonsKineticsManganeseManganese CompoundsModels, MolecularOxidation-ReductionOxidesOxygenPhotosynthesisPhotosystem II Protein ComplexSpinacia oleracea2,6-DichloroindophenolbirnessiteIonsManganeseManganese Compoundsmanganese oxideOxidesOxygenPhotosystem II Protein Complex

Identifiers

PMID33257675
PMCPMC7705724
OpenAlexW3107587669

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.