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Science 17 May 1985:
Vol. 228. no. 4701, pp. 879 - 882
DOI: 10.1126/science.3890178
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Articles

Science, Vol 228, Issue 4701, 879-882
Copyright © 1985 by American Association for the Advancement of Science

articles

Expression of the major surface antigen of Plasmodium knowlesi sporozoites in yeast

S Sharma and GN Godson

The circumsporozite protein, a surface antigen of the sporozoite stage of the monkey malarial parasite Plasmodium knowlesi, was expressed in the yeast Saccharomyces cerevisiae by using an expression vector containing the 5' regulatory region of the yeast alcohol dehydrogenase I gene. It was necessary to eliminate the entire 5' upstream region of the parasite DNA to obtain the expression of this protein. Only the circumsporozoite precursor was produced by the yeast transformants, as detected by immunoblotting. About 55 and 20 percent of the circumsporozoite protein produced in yeast was associated wtih the 25,000 g and 150,000 g particulate fractions, respectively. The protein could be solubilized in Triton X-100 and was stable in solubilized extracts.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Anchoring of an Immunogenic Plasmodium falciparum Circumsporozoite Protein on the Surface of Dictyostelium discoideum.
C. D. Reymond, C. Beghdadi-Rais, M. Roggero, E. A. Duarte, C. Desponds, M. Bernard, D. Groux, H. Matile, C. Bron, G. Corradin, et al. (1995)
J. Biol. Chem. 270, 12941-12947
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