title: Isolate-specific S-antigen of Plasmodium falciparum contains a repeated sequence of eleven amino acids.
abstract: Antibodies raised against a Plasmodium falciparum protein expressed in Escherichia coli reacted with a 220,000-molecular weight antigen of mature blood-stage parasites. The protein resembles the sporozoite surface antigen being composed of tandem repeats of 11 amino acids. However, it is isolate-specific and the encoding gene is not detectable in strains that do not express the protein.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D000954:Antigens, Surface / Q000235:genetics; D001483:Base Sequence; D005796:Genes; D007526:Isoelectric Point; D008970:Molecular Weight; D010963:Plasmodium falciparum / Q000235:genetics / Q000276:immunology*; D013045:Species Specificity
chemical_list: D000954:Antigens, Surface