The Type II Secretion System of Legionella pneumophila Elaborates Two Aminopeptidases, as Well as a Metalloprotease That Contributes to Differential Infection among Protozoan Hosts

Ombeline Rossier, Jenny Dao and Nicholas P. Cianciotto

Applied and Environmental Microbiology 74 ( 3 ): 753 - 761 , 2008