DotA is essential for intracellular growth in Legionella [1]. DotA is thought to play an important role in regulating initial phagosome trafficking decisions either upon or immediately after macrophage uptake [2].

1: The Legionella pneumophila global regulatory protein LetA affects DotA and Mip. Shi C, Forsbach-Birk V, Marre R, McNealy TL; Int J Med Microbiol. 2006;296:15-24. PMID:16423685

2: Legionella pneumophila DotA protein is required for early phagosome trafficking decisions that occur within minutes of bacterial uptake. Roy CR, Berger KH, Isberg RR; Mol Microbiol. 1998;28:663-674. PMID:9632267