The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.
Requirements for Phosphorylation of Map Kinase During Meiosis in Xenopus Oocytes
Abstract
Mitogen-activated protein (MAP) kinases are activated in response to a variety of extracellular stimuli by phosphorylation on tyrosine and threonine residues. Xp42 is a Xenopus laevis MAP kinase that is activated during oocyte maturation. Modified forms of Xp42 that lacked enzymatic activity or either of the phosphorylation sites were expressed in Xenopus oocytes. When meiotic maturation was induced with progesterone, each mutant Xp42 was phosphorylated, indicating that at least one kinase was activated that can phosphorylate Xp42 on tyrosine and threonine. Phosphorylation of one residue is not strictly dependent on phosphorylation of the other.
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
Rapid and efficient site-specific mutagenesis without phenotypic selection.
Kunkel, T. A. (1985) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.82.2.488 · Cited by 7,206
[19] Rapid and efficient site-specific mutagenesis without phenotypic selection
Kunkel, T. A., Roberts, J. D., & Zakour, R. A. (1987) · Methods in Enzymology · doi:10.1016/0076-6879(87)54085-x · Cited by 5,261
The Protein Kinase Family: Conserved Features and Deduced Phylogeny of the Catalytic Domains
Hanks, S. K., Quinn, A. M., & Hunter, T. (1988) · Science · doi:10.1126/science.3291115 · Cited by 5,039
Boulton, T. G., Nye, S. H., Robbins, D. J., Ip, N. Y., Radzlejewska, E., Morgenbesser, S. D., DePinho, R. A., Panayotatos, N., Cobb, M. H., & Yancopoulos, G. D. (1991) · Cell · doi:10.1016/0092-8674(91)90098-j · Cited by 1,897
A C-terminal signal prevents secretion of luminal ER proteins
Munro, S., & Pelham, H. R. B. (1987) · Cell · doi:10.1016/0092-8674(87)90086-9 · Cited by 1,721
Anderson, N. G., Maller, J. L., Tonks, N. K., & Sturgill, T. W. (1990) · Nature · doi:10.1038/343651a0 · Cited by 1,063
Payne, D. M., Rossomando, A. J., Martino, P., Erickson, A. K., Her, J. H., Shabanowitz, J., Hunt, D. F., Weber, M. J., & Sturgill, T. W. (1991) · The EMBO Journal · doi:10.1002/j.1460-2075.1991.tb08021.x · Cited by 1,040
Isolation of Monoclonal Antibodies Specific for Human c-myc Proto-Oncogene Product
Evan, G. I., Lewis, G. K., Ramsay, G., & Bishop, J. M. (1985) · Molecular and Cellular Biology · doi:10.1128/mcb.5.12.3610-3616.1985 · Cited by 794
An Insulin-Stimulated Protein Kinase Similar to Yeast Kinases Involved in Cell Cycle Control
Boulton, T. G., Yancopoulos, G. D., Gregory, J. S., Slaughter, C., Moomaw, C., Hsu, J., & Cobb, M. H. (1990) · Science · doi:10.1126/science.2164259 · Cited by 707
Dissection of the protein kinase cascade by which nerve growth factor activates MAP kinases
Gómez, N., & Cohen, P. (1991) · Nature · doi:10.1038/353170a0 · Cited by 569
Cited by
Ultrasensitivity in the mitogen-activated protein kinase cascade.
Huang, C. Y., & Ferrell, J. E. (1996) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.93.19.10078 · Cited by 1,186
Sweatt, J. D. (2001) · Journal of Neurochemistry · doi:10.1046/j.1471-4159.2001.00054.x · Cited by 1,131
The MAP kinase cascade is essential for diverse signal transduction pathways
Nishida, E., & Gotoh, Y. (1993) · Trends in Biochemical Sciences · doi:10.1016/0968-0004(93)90019-j · Cited by 1,076
Activation of p42 Mitogen-activated Protein Kinase in Hippocampal Long Term Potentiation
English, J. D., & Sweatt, J. D. (1996) · Journal of Biological Chemistry · doi:10.1074/jbc.271.40.24329 · Cited by 579
Qiu, M.-S., & Green, S. H. (1992) · Neuron · doi:10.1016/0896-6273(92)90033-a · Cited by 472
Metadata
- Authors
- Posada, J., & Cooper, J. A.
- Venue
- Science
- Published
- 1992-01-10
- Volume
- 255
- Issue
- 5041
- Pages
- 212-215
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2025781389
- Cited by
- 311
- References
- 40
- FWCI
- 18.96
- 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: Requirements for Phosphorylation of Map Kinase During Meiosis in Xenopus Oocytes. https://app.cochat.ai/papers/10.1126/science.1313186
- The paper
- Posada, J., & Cooper, J. A. (1992). Requirements for Phosphorylation of Map Kinase During Meiosis in Xenopus Oocytes. Science. https://doi.org/10.1126/science.1313186
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.