Crossref journal-article
Cold Spring Harbor Laboratory
Genes & Development (246)
Abstract

Homologous integrations into a nonselectable target locus have been highly enriched for following DNA transfections into mammalian cells. The target gene, the SV40 early region in COS1 cells, provides transcription signals to activate a defective selectable marker, the gpt gene. We find that nearly half of the selected clones have integrated the gpt gene at the homologous sequence in the COS1 genome. This is an estimated 100-fold enrichment for homologous events compared with transfections in which the gpt gene is transcriptionally active. As shown for yeast integration events, a double-strand break at a position of homology between the transfected DNA and the genomic target is necessary to achieve a high frequency of homologous integrations. Furthermore, the arrangement of sequences at the integration site includes a repair of the double-strand gap, which was present on the transfected DNA, suggesting that similarities exist between yeast and mammalian integrations. The experimental design, in which a defective marker is activated following a homologous integration, may have general applications for gene targeting in mammalian cells.

Bibliography

Jasin, M., & Berg, P. (1988). Homologous integration in mammalian cells without target gene selection. Genes & Development, 2(11), 1353–1363.

Authors 2
  1. M Jasin (first)
  2. P Berg (additional)
References 22 Referenced 123
  1. {'key': '2021111319485304000_2.11.1353.1', 'first-page': '3246', 'article-title': 'Recombination of homologous DNA fragments transfected into mammalian cells occurs predominantly by terminal pairing.', 'volume': '6', 'year': '1986', 'journal-title': 'Mol. Cell. Biol.'} / Mol. Cell. Biol. / Recombination of homologous DNA fragments transfected into mammalian cells occurs predominantly by terminal pairing. (1986)
  2. {'key': '2021111319485304000_2.11.1353.2', 'first-page': '2520', 'article-title': 'Intramolecular recombination between transfected repeated sequences in mammalian cells is nonconservative.', 'volume': '6', 'year': '1986', 'journal-title': 'Mol. Cell. Biol.'} / Mol. Cell. Biol. / Intramolecular recombination between transfected repeated sequences in mammalian cells is nonconservative. (1986)
  3. 10.1038/330576a0
  4. 10.1016/0092-8674(81)90282-8
  5. 10.1073/pnas.77.7.3898
  6. 10.1016/0092-8674(85)90242-9
  7. {'key': '2021111319485304000_2.11.1353.7', 'first-page': '1020', 'article-title': 'Model for homologous recombination during transfer of DNA into mouse L cells: Role for DNA ends in the recombination process.', 'volume': '4', 'year': '1984', 'journal-title': 'Mol. Cell. Biol.'} / Mol. Cell. Biol. / Model for homologous recombination during transfer of DNA into mouse L cells: Role for DNA ends in the recombination process. (1984)
  8. 10.1073/pnas.82.5.1391
  9. Maniatis, T., E.F. Fritsch, and J. Sambrook. 1982. Molecular cloning: A laboratory manual. Cold Spring Harbor Laboratory, Cold Spring Harbor, New York.
  10. 10.1126/science.6251549
  11. 10.1073/pnas.78.4.2072
  12. 10.1073/pnas.80.14.4417
  13. {'key': '2021111319485304000_2.11.1353.13', 'first-page': '2695', 'article-title': 'Termination-reinitiation occurs in the translation of mammalian cell mRNAs.', 'volume': '6', 'year': '1986', 'journal-title': 'Mol. Cell. Biol.'} / Mol. Cell. Biol. / Termination-reinitiation occurs in the translation of mammalian cell mRNAs. (1986)
  14. 10.1073/pnas.76.10.4951
  15. 10.1101/SQB.1984.049.01.020
  16. 10.1038/317230a0
  17. 10.1073/pnas.84.19.6820
  18. 10.1016/0022-2836(75)90217-X
  19. 10.1016/0092-8674(83)90331-8
  20. 10.1016/0092-8674(87)90646-5
  21. 10.1016/0092-8674(86)90463-0
  22. 10.1016/0092-8674(84)90048-5
Dates
Type When
Created 18 years, 2 months ago (June 5, 2007, 5:15 p.m.)
Deposited 3 years, 9 months ago (Nov. 13, 2021, 10:50 p.m.)
Indexed 1 month, 1 week ago (July 14, 2025, 11:47 p.m.)
Issued 36 years, 9 months ago (Nov. 1, 1988)
Published 36 years, 9 months ago (Nov. 1, 1988)
Published Online 36 years, 9 months ago (Nov. 1, 1988)
Published Print 36 years, 9 months ago (Nov. 1, 1988)
Funders 0

None

@article{Jasin_1988, title={Homologous integration in mammalian cells without target gene selection.}, volume={2}, ISSN={1549-5477}, url={http://dx.doi.org/10.1101/gad.2.11.1353}, DOI={10.1101/gad.2.11.1353}, number={11}, journal={Genes & Development}, publisher={Cold Spring Harbor Laboratory}, author={Jasin, M and Berg, P}, year={1988}, month=nov, pages={1353–1363} }