Exit of Plasmodium Sporozoites from Oocysts Is an Active Process That Involves the Circumsporozoite Protein

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Exit of Plasmodium Sporozoites from Oocysts Is an Active Process That Involves the Circumsporozoite Protein

Plasmodium sporozoites develop within oocysts residing in the mosquito midgut. Mature sporozoites exit the oocysts, enter the hemolymph, and invade the salivary glands. The circumsporozoite (CS) protein is the major surface protein of salivary gland and oocyst sporozoites. It is also found on the oocyst plasma membrane and on the inner surface of the oocyst capsule. CS protein contains a conser...

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The Plasmodium circumsporozoite protein is proteolytically processed during cell invasion

The circumsporozoite protein (CSP) is the major surface protein of Plasmodium sporozoites, the infective stage of malaria. Although CSP has been extensively studied as a malaria vaccine candidate, little is known about its structure. Here, we show that CSP is proteolytically cleaved by a papain family cysteine protease of parasite origin. Our data suggest that the highly conserved region I, fou...

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Monoclonal antibody identifies circumsporozoite protein of Plasmodium malariae and detects a common epitope on Plasmodium brasilianum sporozoites.

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Binding and invasion of liver cells by Plasmodium falciparum sporozoites. Essential involvement of the amino terminus of circumsporozoite protein.

Plasmodium sporozoites display circumsporozoite (CS) protein on their surface, which is involved in the attachment of sporozoites to liver cells. CS protein is a member of the thrombospondin type I repeat (TSR) domain family and possess a single copy of TSR domain toward its carboxyl terminus. We show by a direct measurement the correlation between the binding activity of various segments of th...

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ژورنال

عنوان ژورنال: PLoS Pathogens

سال: 2005

ISSN: 1553-7374

DOI: 10.1371/journal.ppat.0010009