Evaluation of drug-free methods for the detection of gene silencing in Saccharomyces cerevisiae

Autor: Kholoud Shaban, Safia Mahabub Sauty, Ashley Fisher, Ashley Cheng, Krassimir Yankulov
Rok vydání: 2023
Předmět:
Zdroj: Biochemistry and Cell Biology. 101:125-130
ISSN: 1208-6002
0829-8211
DOI: 10.1139/bcb-2022-0243
Popis: Multiple studies in Saccharomyces cerevisiae have measured the levels of gene silencing by inserting the URA3 gene at various loci and selecting against URA3-expressing cells by 5-flouroorotic acid (5-FOA). However, 5-FOA affects the cellular pools of dNTPs and can produce side effects. To circumvent this issue, we and others have introduced drug-free techniques to detect silent and active gene states. In this study, we compared three drug-free methods based on the expression of fluorescent reporters in the VIIL telomere of S. cerevisiae. Our results point out that only one of these methods is suitable for large-scale drug-free analyses of gene silencing.
Databáze: OpenAIRE