The SymE-SymR toxin-antitoxin system is a well-studied mechanism that functions in regulating gene expression under stress conditions. However, there are several synonyms used for this system depending on the study or research paper. The system is sometimes referred to as the SymE-SymR autoregulatory system, SymRS, SymE-Rv2827c, and Rv2827c-Rv2828c. Additionally, it is also known as the mazEF-like system due to its similarities to the mazEF system in Escherichia coli. Despite having multiple synonyms, the system's function remains the same, controlling bacterial survival during prolonged antibiotic exposure, and it is important for bacterial persistence during eradication therapy. Overall, knowing the various synonyms for this system is critical for scientific communication and research.