Kawamoto, S.; Shibano, Y.; Fukushima, J.; Ishii, N.; Morihara, K.; Okuda, K.
Site-directed mutagenesis of Glu-141 and His-223 in Pseudomonas aeruginosa elastase: catalytic activity, processing, and protective activity of the elastase against Pseudomonas infection (1993), Infect. Immun., 61, 1400-1405.