The DOI matches its Crossref record.
A phage integrase directs efficient site-specific integration in human cells
Open accessAbstract
The integrase from the Streptomyces phage φC31 carries out efficient recombination between the attP site in the phage genome and the attB site in the host bacterial chromosome. In this paper, we show that the enzyme also functions in human cells. A plasmid assay system was constructed that measured intramolecular integration of attP into attB . This assay was used to demonstrate that in the presence of the φC31 integrase, precise unidirectional integration occurs with an efficiency of 100% in Escherichia coli and >50% in human cells. This assay system was also used to define the minimal sizes of attB and attP at 34 bp and 39 bp, respectively. Furthermore, precise and efficient intermolecular integration of an incoming plasmid bearing attP into an established Epstein–Barr virus plasmid bearing attB was documented in human cells. This work is a demonstration of efficient, site-specific, unidirectional integration in mammalian cells. These observations form the basis for site-specific integration strategies potentially useful in a broad range of genetic engineering applications.
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
Progress and problems with the use of viral vectors for gene therapy
Thomas, C. E., Ehrhardt, A., & Kay, M. A. (2003) · Nature Reviews Genetics · doi:10.1038/nrg1066 · Cited by 2,501
Synthetic circuits integrating logic and memory in living cells
Siuti, P., Yazbek, J., & Lu, T. K. (2013) · Nature Biotechnology · doi:10.1038/nbt.2510 · Cited by 531
Phage as agents of lateral gene transfer
Canchaya, C., Fournous, G., Chibani-Chennoufi, S., Dillmann, M.-L., & Brüssow, H. (2003) · Current Opinion in Microbiology · doi:10.1016/s1369-5274(03)00086-9 · Cited by 499
Chen, Z.-Y., He, C.-Y., Ehrhardt, A., & Kay, M. A. (2003) · Molecular Therapy · doi:10.1016/s1525-0016(03)00168-0 · Cited by 462
Site-specific integrase-mediated transgenesis in mice via pronuclear injection
Tasic, B., Hippenmeyer, S., Wang, C., Gamboa, M., Zong, H., Chen-Tsai, Y., & Luo, L. (2011) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1019507108 · Cited by 246
Metadata
- Authors
- Groth, A. C., Olivares, E. C., Thyagarajan, B., & Calos, M. P.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2000-05-09
- Volume
- 97
- Issue
- 11
- Pages
- 5995-6000
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W1988379532
- Cited by
- 495
- References
- 0
- FWCI
- 4.62
- 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: A phage integrase directs efficient site-specific integration in human cells. https://app.cochat.ai/papers/10.1073/pnas.090527097
- The paper
- Groth, A. C., Olivares, E. C., Thyagarajan, B., & Calos, M. P. (2000). A phage integrase directs efficient site-specific integration in human cells. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.090527097
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.