Cited by 236Origins and Evolution of LifePaleontology and Stratigraphy of FossilsTrace Elements in Health

Modern proteomes contain putative imprints of ancient shifts in trace metal geochemistry

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Dupont, Christopher L., Yang, Song, Palenik, Brian, Bourne, Philip E.·2006·Proceedings of the National Academy of Sciences

Abstract

Because of the rise in atmospheric oxygen 2.3 billion years ago (Gya) and the subsequent changes in oceanic redox state over the last 2.3-1 Gya, trace metal bioavailability in marine environments has changed dramatically. Although theorized to have influenced the biological usage of metals leaving discernable genomic signals, a thorough and quantitative test of this hypothesis has been lacking. Using structural bioinformatics and whole-genome sequences, the Fe-, Zn-, Mn-, and Co-binding metallomes of 23 Archaea, 233 Bacteria, and 57 Eukarya were constructed. These metallomes reveal that the overall abundances of these metal-binding structures scale to proteome size as power laws with a unique set of slopes for each Superkingdom of Life. The differences in the power describing the abundances of Fe-, Mn-, Zn-, and Co-binding proteins in the proteomes of Prokaryotes and Eukaryotes are similar to the theorized changes in the abundances of these metals after the oxygenation of oceanic deep waters. This phenomenon suggests that Prokarya and Eukarya evolved in anoxic and oxic environments, respectively, a hypothesis further supported by structures and functions of Fe-binding proteins in each Superkingdom. Also observed is a proliferation in the diversity of Zn-binding protein structures involved in protein-DNA and protein-protein interactions within Eukarya, an event unlikely to occur in either an anoxic or euxinic environment where Zn concentrations would be vanishingly low. We hypothesize that these conserved trends are proteomic imprints of changes in trace metal bioavailability in the ancient ocean that highlight a major evolutionary shift in biological trace metal usage.

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Crossref · 10.1073/pnas.0605798103

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  • Based on eukaryotic cellular requirements, geochemical modeling, and late emergence of eukaryotic Zn metalloenzymes, it was believed that Zn concentrations in early oceans would have been a possible barrier to eukaryotic evolution.

    “Similarly, based on eukaryotic cellular requirements, geochemical modeling, and the late emergence of eukaryotic Zn metalloenzymes, it was believed that Zn concentrations in the early oceans would have been a possible barrier to eukaryotic evolution (Williams and Frausto da Silva 2002;2003;Saito et al., 2003;Dupont et al., 2006;2010;Williams and Rickaby, 2012).”

    From Trace elements at the intersection of marine biological and geochemical evolution (2016) · cites this paper as Dupont et al., 2006

  • Loss or gain of FF or FSF can be viewed as key evolutionary events that in many cases appear to track fundamental shifts in paleomarine redox chemistry.

    “The loss or gain of these FF or FSF can be viewed as key evolutionary events that in many cases appear to track fundamental shifts in paleomarine redox chemistry (Dupont et al., 2006;2010).”

    From Trace elements at the intersection of marine biological and geochemical evolution (2016) · cites this paper as Dupont et al., 2006

  • For proteins with metal-binding domains, it is possible to predict which metals occupy these domains, so evolutionary relationships between protein structures may reveal trends in metal acquisition.

    “For families whose proteins contain metal-binding domains, it is possible to predict which metals occupy these domains, such that evolutionary relationships between protein structures may be used to reveal trends in metal acquisition in biological systems.”

    From Trace elements at the intersection of marine biological and geochemical evolution (2016) · cites this paper as Dupont et al., 2006

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Authors
Dupont, C. L., Yang, S., Palenik, B., & Bourne, P. E.
Affiliations
  • Scripps Institution of Oceanography (US)
  • Departments of ‡Chemistry and Biochemistry and
  • Marine Biology Research Division,
  • San Diego Supercomputer Center (US)
Venue
Proceedings of the National Academy of Sciences
Published
2006-11-21
Volume
103
Issue
47
Pages
17822-17827
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2134705864
Cited by
236
References
37
Citations by year
2026: 6 · 2025: 9 · 2024: 8 · 2023: 12 · 2022: 19 · 2021: 12 · 2020: 8 · 2019: 10 · 2018: 13 · 2017: 18 · 2016: 13 · 2015: 5 · 2014: 15 · 2013: 9 · 2012: 11
FWCI
6.12
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of General Medical Sciences (GM63208, P01GM063208)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
Keywords
trace metal bioavailability, metallome, metal-binding proteins, iron-binding proteins, zinc-binding proteins, Great Oxidation Event, ocean redox state, anoxic oceans, protein-DNA interactions, protein-protein interaction, power law, proteome evolution
MeSH terms
Animals, Bacterial Proteins, Eukaryotic Cells, Metals, Oxidation-Reduction, Seawater, Trace Elements, Geologic Sediments, Evolution, Molecular, Computational Biology, Archaeal Proteins, Proteome

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