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Ultrastructural localization of phosphoglycerate kinase in adult Clonorchis sinensis

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Abstract

Phosphoglycerate kinase (PGK) is an enzyme that produces one ATP molecule in the glycolytic pathway. Clonorchis sinensis is largely dependent on glycolysis for energy production. We performed immunoelectron microscopy on adult C. sinensis by using mouse immune serum raised against recombinant C. sinensis PGK. A high density of gold particles was found in the microvilli of the intestinal epithelium and in lamellae of the sperm duct. PGK was common in the somatic cells of intra-uterine eggs and in excreted products. It was localized with moderate intensity in muscular fibers of the subtegumental muscle layer, and in the myoepithelia of the intestine and excretory bladder. We suggest that PGK plays an essential role in C. sinensis energy production for movement via muscle contraction.

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Acknowledgement

This work was supported in part by the Research Institute for Biomedical and Pharmaceutical Sciences of Chung-Ang University (2002).

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Correspondence to Sung-Jong Hong.

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Hong, SJ., Shin, JK., Kang, SY. et al. Ultrastructural localization of phosphoglycerate kinase in adult Clonorchis sinensis . Parasitol Res 90, 369–371 (2003). https://doi.org/10.1007/s00436-003-0857-y

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  • DOI: https://doi.org/10.1007/s00436-003-0857-y

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