The DOI matches its Crossref record.
The Presence of Fibroblast Growth Factor in the Frog Egg: Its Role as a Natural Mesoderm Inducer
Abstract
A complementary DNA clone corresponding to a 4.2-kilobase transcript that is present in the Xenopus oocyte and newly transcribed in the neurula stages of development has been isolated. This messenger RNA encodes a 155-amino acid protein that is 84% identical to the human basic fibroblast growth factor (bFGF). When expressed in Escherichia coli and purified, the Xenopus FGF induced mesoderm in animal cell blastomeres as measured by muscle actin expression. Immunoblots with an antibody to a Xenopus FGF peptide show that the oocyte and early embryo contain a store of the FGF polypeptide at high enough concentrations to induce mesoderm. The presence of FGF in the oocyte, together with the apparent lack of a secretory signal sequence in the protein, suggest that the regulation of mesoderm induction may involve novel mechanisms that occur after the translation of FGF.
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
Cited by
Trophic factors and neuronal survival
Barde, Y.-A. (1989) · Neuron · doi:10.1016/0896-6273(89)90040-8 · Cited by 1,625
Amaya, E., Musci, T. J., & Kirschner, M. W. (1991) · Cell · doi:10.1016/0092-8674(91)90616-7 · Cited by 1,085
Self-citationFORMATION AND FUNCTION OF SPEMANN'S ORGANIZER
Harland, R., & Gerhart, J. (1997) · Annual Review of Cell and Developmental Biology · doi:10.1146/annurev.cellbio.13.1.611 · Cited by 839
Fibroblast Growth Factor Signaling during Early Vertebrate Development
Böttcher, R. T., & Niehrs, C. (2005) · Endocrine Reviews · doi:10.1210/er.2003-0040 · Cited by 540
Mignatti, P., Morimoto, T., & Rifkin, D. B. (1992) · Journal of Cellular Physiology · doi:10.1002/jcp.1041510113 · Cited by 451
Metadata
- Authors
- Kimelman, D., Abraham, J. A., Haaparanta, T., Palisi, T. M., & Kirschner, M. W.
- Venue
- Science
- Published
- 1988-11-18
- Volume
- 242
- Issue
- 4881
- Pages
- 1053-1056
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1965918354
- Cited by
- 363
- References
- 0
- FWCI
- 17.28
- Type
- journal article
- Language
- en
- Open access
- closed
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: The Presence of Fibroblast Growth Factor in the Frog Egg: Its Role as a Natural Mesoderm Inducer. https://app.cochat.ai/papers/10.1126/science.3194757
- The paper
- Kimelman, D., Abraham, J. A., Haaparanta, T., Palisi, T. M., & Kirschner, M. W. (1988). The Presence of Fibroblast Growth Factor in the Frog Egg: Its Role as a Natural Mesoderm Inducer. Science. https://doi.org/10.1126/science.3194757
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.