Functional activation reveals a repressor-gated fourth type VI secretion system in clinical Pseudomonas aeruginosa
Liwen Wu, Yong Liu, Ruolin Huang, Ying Zhao, Junbo Liu, Ying An, Jingtong Su, Yiqiu Zhang, Xingyu Wang, Haoyu Zheng, Xia Liu, Tongtong Pei, Xiaoye Liang, Xiaotian Liu, Yu Xia, , Tao Dong
The paper identifies and characterizes a fourth type VI secretion system (H4-T6SS) in Pseudomonas aeruginosa, showing it is repressor-gated and contributes to inter- and intraspecific antagonism.
bioRxiv · Feb 12, 2026 · PreprintMicrobiology