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Cell--cell interactions in conjugating Escherichia coli: role of traT protein in surface exclusion.
Open accessAbstract
Escherichia coli cells carrying the F sex factor are poor recipients in conjugation. This phenomenon is called surface exclusion. Two F cistrons, traS and traT, are independently responsible for part of the whole mechanism. The traS gene product reduces DNA transfer within stable mating aggregates. The traT gene product, pTraT, results in a greatly reduced ability to form stable mating aggregates, and thus also leads to reduced DNA transfer within the cell population. pTraT is a 25,000-dalton protein incorporated into the cell envelope outer membrane. It is found in 29,000-84,000 copies per cell, depending on the plasmid expressing it. There is a parallel variation in recipient ability. Models for surface exclusion are discussed.
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Cited by
Rodriguez-Siek, K. E., Giddings, C. W., Doetkott, C., Johnson, T. J., Fakhr, M. K., & Nolan, L. K. (2005) · Microbiology · doi:10.1099/mic.0.27499-0 · Cited by 432
Capsules and their traits shape phage susceptibility and plasmid conjugation efficiency
Haudiquet, M., Le Bris, J., Nucci, A., Bonnin, R. A., Domingo-Calap, P., Rocha, E. P. C., & Rendueles, O. (2024) · Nature Communications · doi:10.1038/s41467-024-46147-5 · Cited by 72
Systematic, high-throughput characterization of bacteriophage gene essentiality on diverse hosts
Chen, J., Nilsen, E. D., Chitboonthavisuk, C., Corban, J. E., Yang, M., Mo, C. Y., & Raman, S. (2025) · Cell Host & Microbe · doi:10.1016/j.chom.2025.06.018 · Cited by 16
Multi-conflict islands are a widespread trend within Serratia spp.
Cummins, T., Songra, S., Garrett, S. R., Blower, T. R., & Mariano, G. (2024) · Cell Reports · doi:10.1016/j.celrep.2024.115055 · Cited by 8
Structure of the conjugation surface exclusion protein TraT
Chen, N., Bukys, A., Lundgren, C. A. K., Deme, J. C., El Sayyed, H., Kapanidis, A. N., Lea, S. M., & Berks, B. C. (2025) · Communications Biology · doi:10.1038/s42003-025-09102-8 · Cited by 4
Metadata
- Authors
- Achtman, M., Kennedy, N., & Skurray, R.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1977-11
- Volume
- 74
- Issue
- 11
- Pages
- 5104-5108
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2009893405
- Cited by
- 204
- References
- 0
- FWCI
- 5.66
- Type
- journal article
- Language
- en
- Open access
- green
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- Achtman, M., Kennedy, N., & Skurray, R. (1977). Cell--cell interactions in conjugating Escherichia coli: role of traT protein in surface exclusion. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.74.11.5104
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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