Evidence map›Paper›PMID 39250667›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2024

Iron: Life's primeval transition metal.

Jena E Johnson, Theodore M Present, Joan Selverstone Valentine

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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.

  1. A frameshift mutation drives divergent biosynthesis of metallophores inbioRxiv : the preprint server for biology · 2026
    Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. FeNature communications · 2025
    Article
  10. Ferroptosis and cancer: when iron turns against tumors.Cellular and molecular life sciences : CMLS · 2025
    Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Iron and Cell Death.Advances in experimental medicine and biology · 2025
    Review
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

3 authors.

Jena E Johnson *Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109.ORCID 0000-0001-8842-100X
Theodore M Present *Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125.ORCID 0000-0002-4747-2174
Joan Selverstone ValentineDivision of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125.ORCID 0000-0002-7174-925X

Funding

NASA | NASA Headquarters (NASA HQ) 80NSSC18K1060NSF (NSF) 2142509Simons Foundation (SF) 668346
6 · The paper itself

Abstract

Modern life requires many different metal ions, which enable diverse biochemical functions. It is commonly assumed that metal ions' environmental availabilities controlled the evolution of early life. We argue that evolution can only explore the chemistry that life encounters, and fortuitous chemical interactions between metal ions and biological compounds can only be selected for if they first occur sufficiently frequently. We calculated maximal transition metal ion concentrations in the ancient ocean, determining that the amounts of biologically important transition metal ions were orders of magnitude lower than ferrous iron. Under such conditions, primitive bioligands would predominantly interact with Fe(II). While interactions with other metals in certain environments may have provided evolutionary opportunities, the biochemical capacities of Fe(II), Fe-S clusters, or the plentiful magnesium and calcium could have satisfied all functions needed by early life. Primitive organisms could have used Fe(II) exclusively for their transition metal ion requirements.

Indexed as

IronMagnesiumTransition ElementsIronMagnesiumTransition Elementsancient bioligand metal bindingArchean metal ion bioavailabilityevolution of early lifemetalloenzyme functional analysisprimitive enzymes

Identifiers

PMID39250667
PMCPMC11420189

What OpenQuestion holds

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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.