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Base substitution mutations induced by metabolically activated aflatoxin B1.
Open accessAbstract
We have determined the base substitutions generated by metabolically activated aflatoxin B1 in the lacI gene of a uvrB- strain of Escherichia coli. By monitoring over 70 different nonsense mutation sites, we show that activated aflatoxin B1 specifically induced GxC leads to TxA transversions. One possible pathway leading to this base change involves depurination at guanine residues. We consider this mechanism of mutagenesis in the light of our other findings that the carcinogens benzo[a]pyrene diol epoxide and N-acetoxyacetylaminofluorene also specifically induce GxC leads to TxA transversions.
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Cites
Mechanism of activation of a human oncogene
Tabin, C. J., Bradley, S. M., Bargmann, C. I., Weinberg, R. A., Papageorge, A. G., Scolnick, E. M., Dhar, R., Lowy, D. R., & Chang, E. H. (1982) · Nature · doi:10.1038/300143a0 · Cited by 1,393
Cited by
p53 Mutations in Human Cancers
Hollstein, M., Sidransky, D., Vogelstein, B., & Harris, C. C. (1991) · Science · doi:10.1126/science.1905840 · Cited by 8,018
Mutagenesis and inducible responses to deoxyribonucleic acid damage in Escherichia coli
Walker, G. C. (1984) · Microbiological Reviews · doi:10.1128/mmbr.48.1.60-93.1984 · Cited by 1,770
Aguilar, F., Hussain, S. P., & Cerutti, P. (1993) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.90.18.8586 · Cited by 489
Epidemiology and natural history of hepatocellular carcinoma
McGlynn, K. A., & London, W. T. (2005) · Best Practice & Research Clinical Gastroenterology · doi:10.1016/j.bpg.2004.10.004 · Cited by 373
Jones, P. A. (2002) · Oncogene · doi:10.1038/sj.onc.1205597 · Cited by 321
Metadata
- Authors
- Foster, P. L., Eisenstadt, E., & Miller, J. H.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1983-05
- Volume
- 80
- Issue
- 9
- Pages
- 2695-2698
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2019981881
- Cited by
- 274
- References
- 1
- FWCI
- 7.53
- Type
- journal article
- Language
- en
- Open access
- green
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- Foster, P. L., Eisenstadt, E., & Miller, J. H. (1983). Base substitution mutations induced by metabolically activated aflatoxin B1. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.80.9.2695
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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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