摘要:
Immunization formulations comprising an antigen and an emulsan or emulsan analog are formed and can be administered to a host. The emulsan or emulsan analog is an adjuvant in the immunization formulation. The emulsan or emulsan analog is secreted from Acinetobacter calcoaceticus. In particular, the emulsan or emulsan analog is secreted from Acinetobacter calcoaceticus RAG-1. The emulsan analog is produced and secreted from Acinetobacter calcoaceticus cultured in the presence of varying fatty acid sources. The emulsan analog is also produced and secreted from mutants of Acinetobacter calcoaceticus, such as transposon mutants of Acinetobacter calcoaceticus RAG-1.