Separation of Legionella pneumophila Proteases and Purification of a Protease Which Produces Lesions Like Those of Legionnaires’ Disease in Guinea Pig Lung Conlan, J. W. and Baskerville, A. and Ashworth, L. A. E.,, 132, 1565-1574 (1986), doi = https://doi.org/10.1099/00221287-132-6-1565, publicationName = Microbiology Society, issn = 1350-0872, abstract= Six discrete protease activities were recovered from the supernatant broth of Legionella pneumophila cultures by ion-exchange chromatography. One of these demonstrated in vitro activity against collagen, casein and gelatin. When administered into the lungs of guinea-pigs this protease elicited lesions which were pathologically similar to those seen in clinical and experimentally induced Legionnaires’ disease., language=, type=