Identification of surface membrane proteins and surface membrane antigens of plasmodium chabaudi merozoites.

Surface membrane proteins of viable merozoites of Plasmodium chabaudi were iodinated by the Iodogen method and analysed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Thirteen surface membrane proteins ranging from 22 to 270 kDa were thus identified. Most of these proteins could be immunoprecipitated by sera of mice immunized with extracts of P. chabaudi. A few, however, were precipitated only by sera of mice challenged with living parasites after immunization.