has role in taxon Plasmodium falciparum erythrocytic merozoite protective antigen role protective antigen Hsp90 Allen Xiang protein Protegen ID: 657; NCBI Protein GI: 1093612; NCBITaxon: 5833 Oliver He A monkey vaccination trial using a Plasmodium falciparum protein fraction containing antigens of 90-110 kDa is reported. Three monkeys out of five resisted a heavy challenge dose of highly virulent parasites. Hsp90 was found in the immunoprecipitates obtained with SERP antisera. Interestingly, the response to hsp90 correlated with protection, high antibody titres being found only in the protected monkeys [PubMed: 8303938]. Plasmodium falciparum protein