has role protective antigen role protective antigen Chlamydia muridarum protein MOMP Oliver He Protegen ID: 435; NCBI Protein GI: 1518659; NCBITaxon: 83560 Allen Xiang Female BALB/c mice were immunized with chlamydial major outer membrane protein (MOMP) mixed with cholera toxin and CpG oligodeoxynucleotide adjuvants by either the IN or TCI routes. Both intranasal and transcutaneous immunization protected mice against respiratory challenge with Chlamydia [PubMed: 16153755]. protein