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Mol Biochem Parasitol. 1994 Jun;65(2):259-70.

Expression of a hydrophilic surface protein in infective stages of Leishmania major.

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  • 1Department of Biochemistry, Imperial College of Science, Technology and Medicine, London, UK.

Abstract

A family of differentially expressed genes from Leishmania major contains one sequence (Gene B) that encodes a novel, hydrophilic protein found on the surface of infective parasite stages. The 177-residue, acidic Gene B protein is characterised by an amino acid repetitive element, comprising 45% of the total molecule, that is related to the cell-wall binding domain of protein A from Staphylococcus aureus. No identifiable signal peptide, membrane-spanning domain or consensus for glycosylphosphatidylinositol anchor attachment to the cell surface is found elsewhere in the deduced protein sequence. In vitro, the Gene B protein fractionates with the parasite cell surface glycoconjugates, lipophosphoglycan and the glycoinositolphospholipids. This protein is the first characterised surface peptide marker for infective stages of the Leishmania life cycle.

PMID:
7969267
[PubMed - indexed for MEDLINE]
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