Comparative proteomic analysis of the PhoP regulon in Salmonella enterica serovar Typhi versus Typhimurium. oleh Richelle C Charles, Jason B Harris, Michael R Chase, Lauren M Lebrun, Alaullah Sheikh, Regina C LaRocque, Tanya Logvinenko, Sean M Rollins, Abdullah Tarique, Elizabeth L Hohmann, Ian Rosenberg, Bryan Krastins, David A Sarracino, Firdausi Qadri, Stephen B Calderwood, Edward T Ryan