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A Trichomonas vaginalis cDNA with partial protein sequence homology with a Plasmodium falciparum excreted protein
G E Garber1, L T Lemchuk-Favel, K C Meysick
1Department of Medicine, University of Ottawa, Ontario, Canada.
Applied Parasitology
|November 1, 1993
Abstract:
We have previously isolated two extracellular cysteine proteases (60 kDa, 30 kDa) from the cell filtrate of an isolate of Trichomonas vaginalis. All isolates tested produced a 60 kDa protease as demonstrated by immunoblot with cross-reacting rabbit serum. A T. vaginalis cDNA library was constructed using lambda gt11. A 760 bp T. vaginalis specific cDNA was sequenced and demonstrates partial protein sequence homology with an extracellular cysteine protease of Plasmodium falciparum. These results are consistent with the hypothesis that this protease may be important in the pathogenesis of T. vaginalis infection.