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Journal articles
Cloning and Expression of Gumboro VP2 Antigen in Aspergillus niger.
Abstract : BACKGROUND: Infectious Bursal Disease Virus (IBDV) causes a highly immunosuppressive disease in chickens and is a pathogen of major economic importance to the poultry industry worldwide. The VP2 protein is the major host-protective immunogen of IBDV and has been considered as a potential subunit vaccine against the disease. VP2 coding sequence was cloned in an inducible fungal vector and the protein was expressed in Aspergillus niger (A. niger). METHODS: Aiming at a high level of expression, a multicopy AMA1-pyrG-based episomal construct driven by a strong inducible promoter, glaA, was prepared and used in transformation of A. niger pyrG-protoplasts. SDS-PAGE and western blot analysis was carried out to confirm the expression of the protein. RESULTS: A number of pyrG (+) positive transformants were isolated and the presence of expression cassette was confirmed. Western blot analysis of one of these recombinant strains using monospecific anti-VP2 antibodies demonstrated the successful expression of the protein. The recombinant protein was also detected by serum obtained from immunized chicken. CONCLUSION: In the present study, we have generated a recombinant A. niger strain expressing VP2 protein intracellulary. This recombinant strain of A. niger may have potential applications in oral vaccination against IBDV in poultry industry.
Cited literature [32 references]
https://hal-riip.archives-ouvertes.fr/pasteur-00825962
Contributor : Khalaj Vahid <>
Submitted on : Saturday, May 25, 2013 - 7:06:48 AM
Last modification on : Wednesday, September 23, 2020 - 10:48:02 AM
Long-term archiving on: : Monday, August 26, 2013 - 2:55:08 AM
Contributor : Khalaj Vahid <>
Submitted on : Saturday, May 25, 2013 - 7:06:48 AM
Last modification on : Wednesday, September 23, 2020 - 10:48:02 AM
Long-term archiving on: : Monday, August 26, 2013 - 2:55:08 AM
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