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Subcellular localization of Pfs16, a Plasmodium falciparum gametocyte antigen

Published online by Cambridge University Press:  06 April 2009

D. A. Baker ,
O. Daramola ,
M. V. McCrossan ,
J. Harmer  and
G. A. T. Targett
D. A. Baker
Affiliation:
Department of Medical Parasitology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT
O. Daramola
Affiliation:
Department of Medical Parasitology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT
M. V. McCrossan
Affiliation:
Department of Medical Parasitology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT
J. Harmer
Affiliation:
Department of Medical Parasitology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT
G. A. T. Targett
Affiliation:
Department of Medical Parasitology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT
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Summary

We have used immunoelectron microscopy to investigate the subcellular location of Pfs16 in Plasmodium falciparum. It was detected in the outer membrane region of gametocytes and more specifically on the parasitophorous vacuole membrane (pvm), since, during gametogenesis when the pvm disintegrates, the majority of the antigen was detected on the remains of this membrane in multilaminated whorls and not on the gamete plasma membrane. The antigen was also present on other gametocyte cellular structures, including those which we believe to be Garnham bodies, present in the host cell cytoplasm of some gametocytes. The antigen was present too on the membrane surrounding cytostomes and the resulting food vacuoles in the parasite cytoplasm.

Keywords

Plasmodium falciparummalariaparasitophorous vacuole membraneGarnham bodiescytostomeimmunogold labelling
Type
Research Article
Information
Parasitology , Volume 108 , Issue 2 , February 1994 , pp. 129 - 137
Copyright
Copyright © Cambridge University Press 1994

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