has role protective antigen role protective antigen Coccidioides spp. protein PEP1 protein Protegen ID: 794; NCBI Protein GI: 73915320; NCBITaxon: 199306 Allen Xiang Groups of C57BL/6 mice (20 per group) vaccinated with rPep1 (1 mug per dose) plus adjuvant and challenged with an intranasal inoculum began to die at about 14 to 16 days but then showed significantly greater survival than the control mice [PubMed: 16369008]. Oliver He