The trimeric autotransporter adhesin Ata controls key virulence traits of .

is a Gram-negative pathogen that causes a multitude of nosocomial infections. The trimeric autotransporter adhesin (Ata) belongs to the superfamily of trimeric autotransporter adhesins which are important virulence factors in many Gram-negative species. Phylogenetic profiling revealed that is present in 78% of all sequenced isolates but only in 2% of the closely related species and .