Mice immunized with recombinant PiaA were protected against systemic challenge to a degree similar to those immunized with an existing protein vaccine candidate, PdB (a genetically modified pneumolysin toxoid). Immunization with a combination of both PiuA and PiaA resulted in additive protection and was highly protective against systemic infection with S. pneumoniae (Brown et al., 2001).
COG
COG0614P, under P: Inorganic ion transport and metabolism
Brown et al., 2001: Brown JS, Ogunniyi AD, Woodrow MC, Holden DW, Paton JC. Immunization with components of two iron uptake ABC transporters protects mice against systemic Streptococcus pneumoniae infection. Infection and immunity. 2001; 69(11); 6702-6706. [PubMed: 11598041].