Transcriptional Regulator FabR Is Associated with the Virulence of Non-typeable Haemophilus influenzae in Host-Pathogen Interactions.
Deletion of fabR reduced host cell adherence, increased serum sensitivity, enhanced IgG deposition, and decreased vitronectin binding compared with the wild-type strain, and ΔfabR mutants from multiple NTHi strains showed increased metabolic activity, indicating a conserved role for FabR in metabolic regulation.