Human hookworm infection is one of the most significant parasitic infections, and a leading global cause of anemia and malnutrition of adults and children in rural areas of the tropics and subtropics. Necator americanus secretory protein (Na-ASP1), which is a potential vaccine candidate against hookworm infections, has been expressed in Pichia pastoris. Na-ASP1 protein was expressed extracellulary by employing the leader sequence of the alpha-mating factor of Saccharomyces cerevisiae. Most of the protein produced by single copy clones was secreted outside the cell. The Na-ASP1 steady state mRNA levels of the clones were correlated to their Na-ASP1 gene copy number. However, increasing gene copy number of Na-ASP1 protein in P. pastoris saturated secretory capacity and therefore, decreased the amount of secreted protein in clones harboring multiple copies of Na-ASP1 gene.
CITATION STYLE
Inan, M., Fanders, S. A., Zhang, W., Hotez, P. J., Zhan, B., & Meagher, M. M. (2007). Saturation of the Secretory Pathway by Overexpression of a Hookworm (Necator americanus) Protein (Na-ASP1) (pp. 65–75). https://doi.org/10.1007/978-1-59745-456-8_5
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