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Research Article

Identification and expression in Escherichia coli of merozoite stage-specific genes of the human malarial parasite Plasmodium falciparum

M J McGarvey, E Sheybani, M P Loche, L Perrin, and B Mach
PNAS June 1, 1984 81 (12) 3690-3694; https://doi.org/10.1073/pnas.81.12.3690
M J McGarvey
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E Sheybani
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M P Loche
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L Perrin
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B Mach
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Abstract

The key steps in the development of a malaria vaccine through gene cloning are the identification of the proteins involved in host protective immunity and the cloning, identification, and expression of the genes coding for these proteins. Recent data have indicated that certain proteins synthesized at the late schizont-merozoite stage of Plasmodium falciparum play a major role in malaria immunity. This paper reports the identification, in a cDNA library, of recombinant clones corresponding to genes expressed specifically during the late schizont-merozoite stage of P. falciparum development. The 132 cDNA clones thus identified out of 10,000 were found to correspond to only 12 different genes, probably representing most of the major schizont-merozoite specific genes. The stage-specific cDNAs can be efficiently expressed in Escherichia coli cells. The protein products of some of these clones are recognized by monoclonal antibodies specific for late schizont-merozoite proteins. We conclude that only a small set of genes is specifically induced in the schizont-merozoite stage and that the stage-specific cDNA clones we have isolated are very likely to include the genes coding for the immunologically relevant proteins of P. falciparum.

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Identification and expression in Escherichia coli of merozoite stage-specific genes of the human malarial parasite Plasmodium falciparum
M J McGarvey, E Sheybani, M P Loche, L Perrin, B Mach
Proceedings of the National Academy of Sciences Jun 1984, 81 (12) 3690-3694; DOI: 10.1073/pnas.81.12.3690

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Identification and expression in Escherichia coli of merozoite stage-specific genes of the human malarial parasite Plasmodium falciparum
M J McGarvey, E Sheybani, M P Loche, L Perrin, B Mach
Proceedings of the National Academy of Sciences Jun 1984, 81 (12) 3690-3694; DOI: 10.1073/pnas.81.12.3690
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