has role protective antigen role protective antigen Neisseria meningitidis protein LctP Oliver He Protegen ID: 600; NCBI Protein GI: 254667969; NCBITaxon: 662598 A total of 11 meningococcal proteins that are necessary for establishing systemic infection were expressed as recombinant antigens and assessed for their ability to protect mice against live bacterial challenge against N. meningitidis; the lactate permease (LctP) elicited protective immunity [PubMed: 15964482]. protein Allen Xiang