The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Origin of Genes
Open accessAbstract
We discuss two tests of the hypothesis that the first genes were assembled from exons. The hypothesis of exon shuffling in the progenote predicts that intron phases will be correlated so that exons will be an integer number of codons and predicts that the exons will be correlated with compact regions of polypeptide chain. These predictions have been tested on ancient conserved proteins (proteins without introns in prokaryotes but with introns in eukaryotes) and hold with high statistical significance. We conclude that introns are correlated with compact features of proteins 15-, 22-, or 30-amino acid residues long, as was predicted by “The Exon Theory of Genes.”
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Gilbert, W. (1986) · Nature · doi:10.1038/319618a0 · Cited by 2,721
Self-citation
Cited by
The origin of new genes: Glimpses from the young and old
Long, M., Betrán, E., Thornton, K., & Wang, W. (2003) · Nature Reviews Genetics · doi:10.1038/nrg1204 · Cited by 933
Self-citationComparative Genome and Proteome Analysis of Anopheles gambiae and Drosophila melanogaster
Zdobnov, E. M., von Mering, C., Letunic, I., Torrents, D., Suyama, M., Copley, R. R., Christophides, G. K., Thomasova, D., Holt, R. A., Subramanian, G. M., et al. (2002) · Science · doi:10.1126/science.1077061 · Cited by 553
Bird, S., Zou, J., Wang, T., Munday, B., Cunningham, C., & Secombes, C. J. (2002) · Cytokine & Growth Factor Reviews · doi:10.1016/s1359-6101(02)00028-x · Cited by 266
The origin of the tRNA molecule: implications for the origin of protein synthesis
Di Giulio, M. (2004) · Journal of Theoretical Biology · doi:10.1016/j.jtbi.2003.07.001 · Cited by 93
Ikehara, K. (2002) · Journal of Biosciences · doi:10.1007/bf02703773 · Cited by 71
Metadata
- Authors
- Gilbert, W., de Souza, S. J., & Long, M.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1997-07-22
- Volume
- 94
- Issue
- 15
- Pages
- 7698-7703
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2021892978
- Cited by
- 235
- References
- 1
- FWCI
- 6.19
- Type
- journal article
- Language
- en
- Open access
- green
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Origin of Genes. https://app.cochat.ai/papers/10.1073/pnas.94.15.7698
- The paper
- Gilbert, W., de Souza, S. J., & Long, M. (1997). Origin of Genes. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.94.15.7698
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.