ArticleArchaea (Vancouver, B.C.)2002
Loss of genetic accuracy in mutants of the thermoacidophile Sulfolobus acidocaldarius.
Article in Archaea (Vancouver, B.C.), 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed.
- The Impact of Single-Stranded DNA-Binding Protein SSB and Putative SSB-Interacting Proteins on Genome Integrity in the Thermophilic CrenarchaeonInternational journal of molecular sciences · 2023Article
- How a Genetically Stable Extremophile Evolves: Modes of Genome Diversification in the Archaeon Sulfolobus acidocaldarius.Journal of bacteriology · 2017Article
- Molecular characteristics of spontaneous deletions in the hyperthermophilic archaeon Sulfolobus acidocaldarius.Journal of bacteriology · 2003Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To investigate how hyperthermophilic archaea can propagate their genomes accurately, we isolated Sulfolobus acidocaldarius mutants exhibiting abnormally high rates of spontaneous mutation. Our isolation strategy involved enrichment for mutator lineages via alternating selections, followed by screening for the production of spontaneous, 5-fluoro-orotate-resistant mutants in micro-colonies. Several candidates were evaluated and found to have high frequencies of pyrE and pyrF mutation and reversion. Neither an increased efficiency of plating of mutants on selective medium, nor the creation of a genetically unstable pyrE allele, could be implicated as the cause of these high frequencies. The strains had elevated frequencies of other mutations, and exhibited certain phenotypic differences among themselves. A large increase in sensitivity to DNA-damaging agents was not observed, however. These properties generally resemble those of bacterial mutator mutants and suggest loss of functions specific to genetic accuracy.
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Registered trials
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