Genetic and biochemical characterization of the cell wall hydrolase activity of the major secreted protein of Lactobacillus rhamnosus GG. oleh Ingmar J J Claes, Geert Schoofs, Krzysztof Regulski, Pascal Courtin, Marie-Pierre Chapot-Chartier, Thomas Rolain, Pascal Hols, Ingemar von Ossowski, Justus Reunanen, Willem M de Vos, Airi Palva, Jos Vanderleyden, Sigrid C J De Keersmaecker, Sarah Lebeer