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Mol Biochem Parasitol. 1996 Dec 20;83(2):201-10.

The MIC1 microneme protein of Toxoplasma gondii contains a duplicated receptor-like domain and binds to host cell surface.

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INSERM U42, Villeneuve d' Ascq, France.


The cDNA encoding the Toxoplasma gondii microneme protein MIC1 and the corresponding gene have been cloned and sequenced. The MIC1 gene contains three introns. The cDNA encodes a 456 amino acid (aa) sequence, with a typical signal sequence and no other trans-membrane domain. The protein contains a tandemly duplicated domain with conservation of cysteines and presents distant homology with the Plasmodium sp. microneme protein TRAP-SSP2. The MIC1 protein from tachyzoite lysates and a PMAL recombinant expressing the N-terminal duplicated domain of the protein bound to the surface of putative host cells, suggesting a possible involvement of MIC1 in host cell binding/recognition.

[Indexed for MEDLINE]

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