The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
High-efficiency transformation of mammalian cells by plasmid DNA.
Open accessAbstract
We describe a simple calcium phosphate transfection protocol and neo marker vectors that achieve highly efficient transformation of mammalian cells. In this protocol, the calcium phosphate-DNA complex is formed gradually in the medium during incubation with cells and precipitates on the cells. The crucial factors for obtaining efficient transformation are the pH (6.95) of the buffer used for the calcium phosphate precipitation, the CO2 level (3%) during the incubation of the DNA with the cells, and the amount (20 to 30 micrograms) and the form (circular) of DNA. In sharp contrast to the results with circular DNA, linear DNA is almost inactive. Under these conditions, 50% of mouse L(A9) cells can be stably transformed with pcDneo, a simian virus 40-based neo (neomycin resistance) marker vector. The NIH3T3, C127, CV1, BHK, CHO, and HeLa cell lines were transformed at efficiencies of 10 to 50% with this vector and the neo marker-incorporated pcD vectors that were used for the construction and transduction of cDNA expression libraries as well as for the expression of cloned cDNA in mammalian 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
Kozak, M. (1986) · Cell · doi:10.1016/0092-8674(86)90762-2 · Cited by 4,741
In vivo sequence requirements of the SV40 early promoter region
Benoist, C., & Chambon, P. (1981) · Nature · doi:10.1038/290304a0 · Cited by 1,074
Cited by
The p21 Cdk-interacting protein Cip1 is a potent inhibitor of G1 cyclin-dependent kinases.
Wade Harper, J. (1993) · Cell · doi:10.1016/0092-8674(93)90499-g · Cited by 5,651
Structure of a cannabinoid receptor and functional expression of the cloned cDNA
Matsuda, L. A., Lolait, S. J., Brownstein, M. J., Young, A. C., & Bonner, T. I. (1990) · Nature · doi:10.1038/346561a0 · Cited by 5,011
In Vivo Gene Delivery and Stable Transduction of Nondividing Cells by a Lentiviral Vector
Naldini, L., Blömer, U., Gallay, P., Ory, D., Mulligan, R., Gage, F. H., Verma, I. M., & Trono, D. (1996) · Science · doi:10.1126/science.272.5259.263 · Cited by 4,903
Monyer, H., Burnashev, N., Laurie, D. J., Sakmann, B., & Seeburg, P. H. (1994) · Neuron · doi:10.1016/0896-6273(94)90210-0 · Cited by 3,535
Heteromeric NMDA receptors: molecular and functional distinction of subtypes
Monyer, H., Sprengel, R., Schoepfer, R., Herb, A., Higuchi, M., Lomeli, H., Burnashev, N., Sakmann, B., & Seeburg, P. H. (1992) · Science · doi:10.1126/science.256.5060.1217 · Cited by 2,541
Metadata
- Authors
- Chen, C., & Okayama, H.
- Venue
- Molecular and Cellular Biology
- Publisher
- Informa UK Limited
- Published
- 1987-08
- Volume
- 7
- Issue
- 8
- Pages
- 2745-2752
- ISSN
- 0270-7306 (ISSN-L)
- 1098-5549
- OpenAlex
- W1954929088
- Cited by
- 5,373
- References
- 2
- FWCI
- 41.88
- 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: High-efficiency transformation of mammalian cells by plasmid DNA. https://app.cochat.ai/papers/10.1128/mcb.7.8.2745
- The paper
- Chen, C., & Okayama, H. (1987). High-efficiency transformation of mammalian cells by plasmid DNA. Molecular and Cellular Biology. https://doi.org/10.1128/mcb.7.8.2745
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.