Parasitology Research

, Volume 92, Issue 2, pp 173–176

Recombinant expression of the larval excretory-secretory antigen TES-120 of Toxocara canis in the methylotrophic yeast Pichia pastoris

Short Communication

DOI: 10.1007/s00436-003-1020-5

Cite this article as:
Fong, MY. & Lau, YL. Parasitol Res (2004) 92: 173. doi:10.1007/s00436-003-1020-5


A gene encoding the larval excretory-secretory antigen TES-120 of the dog ascarid worm Toxocara canis was cloned into the methylotrophic yeast Pichia pastoris. Specificity of the recombinant TES-120 antigen produced by the yeast was investigated. Forty-five human serum samples from patients infected with differentparasitic organisms, including 8 cases of toxocariasis, were tested against the recombinant antigen in immunoblot assays. Results from the assays showed that the recombinant TES-120 antigen reacted with sera from toxocariasis patients only. This highly specific recombinant TES-120 antigen can potentially be used for the development of an inexpensive serodiagnostic assay for human toxocariasis.

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  1. 1.Department of Parasitology, Faculty of MedicineUniversity of MalayaKuala LumpurMalaysia