The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Dicistronic targeting constructs: reporters and modifiers of mammalian gene expression.
Open accessAbstract
To investigate the activity of candidate regulatory molecules in mammalian embryogenesis, we have developed a general strategy for modifying and reporting resident chromosomal gene expression. The picornaviral internal ribosome-entry site was incorporated into gene targeting constructs to provide cap-independent translation of a selectable marker from fusion transcripts generated following homologous recombination. These promoterless constructs were highly efficient and have been used both to inactivate the stem-cell-specific transcription factor Oct-4 and to introduce a quantitative regulatory modification into the gene for a stem-cell maintenance factor, differentiation-inhibiting activity. In addition, the inclusion of a beta-galactosidase reporter gene in the constructs enabled accurate and sensitive detection of cellular sites of transcription. This has allowed visualization of putative "stem-cell niches" in which sources of elevated expression of differentiation-inhibiting activity were localized to the differentiated cells surrounding colonies of stem cells.
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
Gu, H., Zou, Y.-R., & Rajewsky, K. (1993) · Cell · doi:10.1016/0092-8674(93)90644-6 · Cited by 989
Cited by
Okano, M., Bell, D. W., Haber, D. A., & Li, E. (1999) · Cell · doi:10.1016/s0092-8674(00)81656-6 · Cited by 6,143
Nichols, J., Zevnik, B., Anastassiadis, K., Niwa, H., Klewe-Nebenius, D., Chambers, I., Schöler, H., & Smith, A. (1998) · Cell · doi:10.1016/s0092-8674(00)81769-9 · Cited by 3,392
Self-citationChanging potency by spontaneous fusion
Ying, Q.-L., Nichols, J., Evans, E. P., & Smith, A. G. (2002) · Nature · doi:10.1038/nature729 · Cited by 1,494
Self-citationGuerra, C., Schuhmacher, A. J., Cañamero, M., Grippo, P. J., Verdaguer, L., Pérez-Gallego, L., Dubus, P., Sandgren, E. P., & Barbacid, M. (2007) · Cancer Cell · doi:10.1016/j.ccr.2007.01.012 · Cited by 1,224
Differential regulation of mammalian Period genes and circadian rhythmicity by cryptochromes 1 and 2
Vitaterna, M. H., Selby, C. P., Todo, T., Niwa, H., Thompson, C., Fruechte, E. M., Hitomi, K., Thresher, R. J., Ishikawa, T., Miyazaki, J., et al. (1999) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.96.21.12114 · Cited by 690
Metadata
- Authors
- Mountford, P., Zevnik, B., Düwel, A., Nichols, J., Li, M., Dani, C., Robertson, M., Chambers, I., & Smith, A.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1994-05-10
- Volume
- 91
- Issue
- 10
- Pages
- 4303-4307
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2075832020
- Cited by
- 312
- References
- 1
- FWCI
- 4.29
- 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: Dicistronic targeting constructs: reporters and modifiers of mammalian gene expression. https://app.cochat.ai/papers/10.1073/pnas.91.10.4303
- The paper
- Mountford, P., Zevnik, B., Düwel, A., Nichols, J., Li, M., Dani, C., Robertson, M., Chambers, I., & Smith, A. (1994). Dicistronic targeting constructs: reporters and modifiers of mammalian gene expression. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.91.10.4303
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.
