Salmonella uses sulfate reductases with unique catalytic activity to promote gut colonization in mice

Nature Microbiology, Published online: 05 August 2026; doi:10.1038/s41564-026-02443-y Extracytoplasmic MopB-family sulfate reductases using Fe–S clusters instead of molybdenum as a cofactor enable sulfate assimilation in Salmonella to support gut colonization and virulence, and help to counter host-imposed oxidative stress.