Evidence map›Paper›PMID 34362891›Full record

ArticleNature communications2021

Timing the evolution of antioxidant enzymes in cyanobacteria.

Joanne S Boden, Kurt O Konhauser, Leslie J Robbins, Patricia Sánchez-Baracaldo

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
14.2field-weighted citation impact, top 1% 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

67 citing papers in PubMed, 134 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. An early diverging SQR enzyme in AntarcticMicrobiology spectrum · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. On the non-oxygenic origins of thylakoids.Communications biology · 2025
    Review
  17. A diverse Palaeoproterozoic microbial ecosystem implies early eukaryogenesis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  18. Exploring productivity hotspots in the Precambrian biosphere.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  19. Review
  20. Review

7 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 3 countries.

Joanne S BodenSchool of Geographical Sciences, University of Bristol, Bristol, United Kingdom.ORCID http://orcid.org/0000-0003-0412-3668
Kurt O KonhauserDepartment of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB, Canada.
Leslie J RobbinsDepartment of Earth and Planetary Sciences, Yale University, New Haven, CT, USA.ORCID http://orcid.org/0000-0002-6931-5743
Patricia Sánchez-BaracaldoSchool of Geographical Sciences, University of Bristol, Bristol, United Kingdom. p.sanchez-baracaldo@bristol.ac.uk.ORCID http://orcid.org/0000-0002-5216-2664
University of Bristol · GBPlanetary Science Institute · USUniversity of Alberta · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ancestors of cyanobacteria generated Earth's first biogenic molecular oxygen, but how they dealt with oxidative stress remains unconstrained. Here we investigate when superoxide dismutase enzymes (SODs) capable of removing superoxide free radicals evolved and estimate when Cyanobacteria originated. Our Bayesian molecular clocks, calibrated with microfossils, predict that stem Cyanobacteria arose 3300-3600 million years ago. Shortly afterwards, we find phylogenetic evidence that ancestral cyanobacteria used SODs with copper and zinc cofactors (CuZnSOD) during the Archaean. By the Paleoproterozoic, they became genetically capable of using iron, nickel, and manganese as cofactors (FeSOD, NiSOD, and MnSOD respectively). The evolution of NiSOD is particularly intriguing because it corresponds with cyanobacteria's invasion of the open ocean. Our analyses of metalloenzymes dealing with reactive oxygen species (ROS) now demonstrate that marine geochemical records alone may not predict patterns of metal usage by phototrophs from freshwater and terrestrial habitats.

Indexed as

Evolution, MolecularAntioxidantsBayes TheoremCoenzymesCopperCyanobacteriaFresh WaterIronManganeseNickelOxidative StressPhylogenyReactive Oxygen SpeciesSuperoxide DismutaseSuperoxidesZincAntioxidantsCoenzymesCopperIronManganeseNickelReactive Oxygen SpeciesSuperoxide DismutaseSuperoxidesZinc

Identifiers

PMID34362891
PMCPMC8346466
OpenAlexW3189362170

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.