We have investigated the sensitivity to DNA-damaging agents of a strain of Saccharomyces cerevisiae containing a deletion of the RAD27 gene. The mutant strain is sensitive to a number of alkylating agents that modify DNA at a variety of positions, including one that produces primarily phosphotriesters. In contrast, the mutant strain is not sensitive to the oxidizing agent hydrogen peroxide. The introduction of a plasmid containing the FEN-1 gene (the human ortholog of the RAD27 gene) can substantially complement the sensitivity to alkylating agents observed in the mutant strain.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s0921-8777(00)00056-2 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A human antibody derived from original SARS-CoV-2 infection effectively neutralizes omicron.
Adv Biotechnol (Singap)
January 2024
Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200030, China.
SARS-CoV-2 (Severe acute respiratory syndrome coronavirus 2) Variants of Concern (VOCs), such as the Omicron sub-variants, present significant challenges in pandemic control due to their capacity to escape antibodies and breach vaccine protections. Discovering antibodies that can tolerate mutations in VOCs and understanding their underlying mechanisms is crucial for developing therapeutics for COVID-19 patients, particularly those for whom other therapies may be unsuitable. Here, we report the neutralization of the Omicron variant by FD20, a broadly active human monoclonal antibody.
View Article and Find Full Text PDFA yeast-based reverse genetics system to generate HCoV-OC43 reporter viruses encoding an eighth subgenomic RNA.
J Virol
January 2025
Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada.
Unlabelled: Coronaviruses have large, positive-sense single-stranded RNA genomes that challenge conventional strategies for mutagenesis. Yeast genetics has been used to manipulate large viral genomes, including those of herpesviruses and coronaviruses. This method, known as transformation-associated recombination (TAR), involves assembling complete viral genomes from dsDNA copies of viral genome fragments via homologous recombination in .
View Article and Find Full Text PDFEffect of halo-tolerance gene Hal5 on ethanol tolerance of .
BBA Adv
October 2024
Department of Biochemistry, Panjab University, Chandigarh 160014, India.
Hal5 gene is involved in halo-tolerance of during high salt stress. Ethanol stress and high salt stress have similarities, as both decrease the availability of water for cells and strain the osmotic homeostasis across the cell membrane. The Hal5 over-expression strain of yeast has more ethanol tolerance, but the Hal5 null mutant strain also has more ethanol tolerance than the wild-type strain.
View Article and Find Full Text PDFSynergistic effects of quaternary ammonium compounds and antibiotics on the evolution of antibiotic resistance.
Water Res
January 2025
Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Key Laboratory of Water Pollution Control and Environmental Safety, Hangzhou, Zhejiang, 310058, China. Electronic address:
The usage of quaternary ammonium compounds (QACs) as disinfectants has surged dramatically during the COVID-19 pandemic and thereafter. QACs can promote antimicrobial resistance, but the combined effects of QACs and antibiotics in driving resistance evolution were yet revealed. This study aimed to evaluate antibiotic resistance of wastewater microorganisms under coexposure to typical antibiotics and the most widely used QAC, dodecyl dimethyl benzyl ammonium chloride (DDBAC).
View Article and Find Full Text PDFCharacterization of novel mutations involved in the development of resistance to colistin in Salmonella isolates from retail pork in Shanghai, China.
Int J Food Microbiol
February 2025
MOST-USDA Joint Research Center for Food Safety and NMPA Key Laboratory for Testing Technology of Pharmaceutical Microbiology, Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address:
Salmonella is an important foodborne pathogen that poses a significant threat to food safety. This study aims to assess the prevalence, genomic features, and colistin-resistant mechanisms of Salmonella isolates collected from 118 retail pork samples from January 2021 to January 2022 in Shanghai, China. Overall, 46 (39.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!