Cited by 122Genomics and Phylogenetic StudiesOrigins and Evolution of LifeProtein Structure and Dynamics

Protein Superfamily Evolution and the Last Universal Common Ancestor (LUCA)

Ranea, Juan A. G., Sillero, Antonio, Thornton, Janet M., Orengo, Christine A.·2006·Journal of Molecular Evolution

Abstract

By exploiting three-dimensional structure comparison, which is more sensitive than conventional sequence-based methods for detecting remote homology, we have identified a set of 140 ancestral protein domains using very restrictive criteria to minimize the potential error introduced by horizontal gene transfer. These domains are highly likely to have been present in the Last Universal Common Ancestor (LUCA) based on their universality in almost all of 114 completed prokaryotic (Bacteria and Archaea) and eukaryotic genomes. Functional analysis of these ancestral domains reveals a genetically complex LUCA with practically all the essential functional systems present in extant organisms, supporting the theory that life achieved its modern cellular status much before the main kingdom separation (Doolittle 2000). In addition, we have calculated different estimations of the genetic and functional versatility of all the superfamilies and functional groups in the prokaryote subsample. These estimations reveal that some ancestral superfamilies have been more versatile than others during evolution allowing more genetic and functional variation. Furthermore, the differences in genetic versatility between protein families are more attributable to their functional nature rather than the time that they have been evolving. These differences in tolerance to mutation suggest that some protein families have eroded their phylogenetic signal faster than others, hiding in many cases, their ancestral origin and suggesting that the calculation of 140 ancestral domains is probably an underestimate.

Integrity signals

Registry

Crossref · 10.1007/s00239-005-0289-7

Cites

39 of 39 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ranea, J. A. G., Sillero, A., Thornton, J. M., & Orengo, C. A.
Affiliations
  • University College London (GB)
  • Consejo Superior de Investigaciones Científicas (ES)
  • European Bioinformatics Institute (GB)
Corresponding author
Ranea, Juan A. G.
Venue
Journal of Molecular Evolution
Published
2006-10
Volume
63
Issue
4
Pages
513-525
ISSN
  • 0022-2844 (ISSN-L)
  • 1432-1432
OpenAlex
W1973481154
Cited by
122
References
39
Citations by year
2026: 3 · 2025: 6 · 2024: 7 · 2023: 5 · 2022: 7 · 2021: 8 · 2020: 6 · 2019: 6 · 2018: 9 · 2017: 5 · 2016: 8 · 2015: 3 · 2014: 2 · 2013: 5 · 2012: 7
FWCI
2.69
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Molecular Evolution (publishedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
protein superfamilies, last universal common ancestor, remote homology detection, horizontal gene transfer, prokaryotic genomes, eukaryotic genomes, mutation tolerance, origin of cellular life
MeSH terms
Proteins, Temperature, Genetic Variation, Genome, Protein Structure, Tertiary, Evolution, Molecular, Gene Duplication

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review