The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.
Procedure for Identifying Nonsense Mutations
Open accessAbstract
A method has been devised for the rapid identification of nonsense mutations (UAG, UAA, UGA codons) in Salmonella . The mutations to be tested are reverted, and the revertants are replica-printed onto lactose plates spread with lawns of tester strains. These tester strains contain F′ lac episomes with nonsense mutations in the episomal Z gene. The revertants are infected with the episome from the tester strain lawn. Because S. typhimurium is unable to ferment lactose, only those revertants which have nonsense suppressors are able to grow on lactose. If colonies appear on the lactose plate, it may be concluded that the original strain carries a nonsense mutation, since nonsense suppressors suppress the mutant phenotype.
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
ACETYLORNITHINASE OF ESCHERICHIA COLI: PARTIAL PURIFICATION AND SOME PROPERTIES
Vogel, H. J., & Bonner, D. M. (1956) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)65874-0 · Cited by 3,991
INDEPENDENT FUNCTIONS OF VIRAL PROTEIN AND NUCLEIC ACID IN GROWTH OF BACTERIOPHAGE
Hershey, A. D., & Chase, M. (1952) · Journal of General Physiology · doi:10.1085/jgp.36.1.39 · Cited by 1,601
Genetic Code: The ‘Nonsense’ Triplets for Chain Termination and their Suppression
BRENNER, S., STRETTON, A. O. W., & KAPLAN, S. (1965) · Nature · doi:10.1038/206994a0 · Cited by 366
Ames, B. N., & Hartman, P. E. (1963) · Cold Spring Harbor Symposia on Quantitative Biology · doi:10.1101/sqb.1963.028.01.049 · Cited by 282
Self-citationISOLATION OF BIOCHEMICALLY DEFICIENT MUTANTS OF BACTERIA BY PENICILLIN
Davis, B. D. (1948) · Journal of the American Chemical Society · doi:10.1021/ja01192a520 · Cited by 274
CONCENTRATION OF BIOCHEMICAL MUTANTS OF BACTERIA WITH PENICILLIN1
Lederberg, J., & Zinder, N. (1948) · Journal of the American Chemical Society · doi:10.1021/ja01192a521 · Cited by 247
Ochre mutants, a new class of suppressible nonsense mutants
Brenner, S., & Beckwith, J. (1965) · Journal of Molecular Biology · doi:10.1016/s0022-2836(65)80131-0 · Cited by 219
Classification of aminotransferase (C gene) mutants in the histidine operon
Whitfield, H. J., Martin, R. G., & Ames, B. N. (1966) · Journal of Molecular Biology · doi:10.1016/0022-2836(66)90103-3 · Cited by 219
Self-citationFrameshift Mutagenesis in Salmonella
Ames, B. N., & Whitfield, H. J. (1966) · Cold Spring Harbor Symposia on Quantitative Biology · doi:10.1101/sqb.1966.031.01.030 · Cited by 216
Self-citationWEIGERT, M. G., & Garen, A. (1965) · Nature · doi:10.1038/206992a0 · Cited by 172
Cited by
Starai, V. J., & Escalante-Semerena, J. C. (2004) · Journal of Molecular Biology · doi:10.1016/j.jmb.2004.05.010 · Cited by 260
Wang, L., Elliott, M., & Elliott, T. (1999) · Journal of Bacteriology · doi:10.1128/jb.181.4.1211-1219.1999 · Cited by 117
Cheng, S., Sinha, S., Fan, C., Liu, Y., & Bobik, T. A. (2011) · Journal of Bacteriology · doi:10.1128/jb.01473-10 · Cited by 104
UGA Nonsense Mutations in Salmonella typhimurium
Roth, J. R. (1970) · Journal of Bacteriology · doi:10.1128/jb.102.2.467-475.1970 · Cited by 84
Self-citationWang, L., Wilson, S., & Elliott, T. (1999) · Journal of Bacteriology · doi:10.1128/jb.181.19.6033-6041.1999 · Cited by 80
Metadata
- Authors
- Berkowitz, D., Hushon, J. M., Whitfield, H. J., Roth, J., & Ames, B. N.
- Venue
- Journal of Bacteriology
- Publisher
- American Society for Microbiology
- Published
- 1968-07
- Volume
- 96
- Issue
- 1
- Pages
- 215-220
- ISSN
- 0021-9193 (ISSN-L)
- 1098-5530
- OpenAlex
- W1547139981
- Cited by
- 290
- References
- 14
- FWCI
- 10.79
- 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: Procedure for Identifying Nonsense Mutations. https://app.cochat.ai/papers/10.1128/jb.96.1.215-220.1968
- The paper
- Berkowitz, D., Hushon, J. M., Whitfield, H. J., Roth, J., & Ames, B. N. (1968). Procedure for Identifying Nonsense Mutations. Journal of Bacteriology. https://doi.org/10.1128/jb.96.1.215-220.1968
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.