Evolutionary Trajectory of the Tet(X) Family: Critical Residue Changes towards High-Level Tigecycline Resistance

Autor: Chao-Yue Cui, Qian He, Qiu-Lin Jia, Cang Li, Chong Chen, Xiao-Ting Wu, Xiao-Jing Zhang, Zhuo-Yu Lin, Zi-Jian Zheng, Xiao-Ping Liao, Barry N. Kreiswirth, Ya-Hong Liu, Liang Chen, Jian Sun
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: mSystems, Vol 6, Iss 3 (2021)
Druh dokumentu: article
ISSN: 2379-5077
DOI: 10.1128/mSystems.00050-21
Popis: The newly emerged tigecycline-inactivating enzymes Tet(X3) and Tet(X4), which are associated with high-level tigecycline resistance, demonstrated significantly higher activities in comparison to that of the prototypical Tet(X) enzyme, threatening the clinical efficacy of tigecycline as a last-resort antibiotic to treat multidrug-resistant (MDR) Gram-negative bacterial infections. However, the molecular mechanisms leading to high-level tigecycline resistance remain elusive.
Databáze: Directory of Open Access Journals