Construction and expression of aspartic protease from Onchocerca volvulus as ompA fusion protein in a mutant strain of Salmonella typhimurium

Jolodar, Abbas, and Miller, David J. (2002) Construction and expression of aspartic protease from Onchocerca volvulus as ompA fusion protein in a mutant strain of Salmonella typhimurium. Genetics and Molecular Biology, 25 (1). pp. 97-101.

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Abstract

Two constructions in pHS164 vector were designed to permit expression of OV7A and OV4A inserts encoding the N-terminal and C-terminal portion of an aspartic protease from Onchocerca volvulus, respectively. A novel 39 kD protein ompA-OV7A fusion protein was stably expressed as ompA fusion in a modified strain of Salmonella typhimurium strain SL5000 and E.coli strain JM109. Expression of the fusion protein in bacterial strains harboring the constructs were evaluated by western blotting. E.coli and Salmonella lysates were fractionated by 10% SDS-PAGE gel and then immobilized to nitrocellulose membrane by electroblotting. Primary polyclonal antibody generated in rats against the GST-OV7A fusion protein was used in the Western blots. It remains to be seen whether the fusion protein expressed in vivo will promote effective immune response.

Item ID: 13530
Item Type: Article (Refereed Research - C1)
Keywords: aspartic protease; nematode; parasite; Salmonella
ISSN: 1415-4757
Date Deposited: 06 Dec 2010 06:35
FoR Codes: 06 BIOLOGICAL SCIENCES > 0601 Biochemistry and Cell Biology > 060107 Enzymes @ 100%
SEO Codes: 92 HEALTH > 9299 Other Health > 929999 Health not elsewhere classified @ 100%
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