YhjC is a novel transcriptional regulator required for Shigella flexneri virulence   Wanwu Li, Lingyan Jiang, Xiaoqian Liu, Rui Guo, Shuai Ma, Jingting Wang, Shuangshuang Ma, Shujie Li, Huiying Li   Virulence   2021 Dec;12(1):1661-1671