College of Veterinary Medicine; 1College
of Engineering, Northeast Agricultural University, 59 Mucai
Street, Xiangfang District, Harbin 150030, China; 2Hunan
Provincial Key Laboratory for Germplasm Innovation and Utilization
of Group; 3College of Veterinary Medicine, Hunan
Agricultural University, 1 Nongda Road, Furong Disctrict, Changsha
410128, China
§These
authors equally contributed to this study
* Corresponding author:
E-mails:
rxfemail@yahoo.com.cn
Abstract
Viral protein 2 (VP2) of
porcine parvovirus (PPV) is the major viral structural protein and responsible
for eliciting neutralizing antibodies in immunized animals. In this study, the
gene encoding VP2 of
PPV was amplified by PCR. The VP2 gene was then
cloned into the prokaryotic expression vector, pET-32a followed by expression in
Escherichia coli
Rosetta.
The
VP2 protein expression was analyzed by sodium dodecyl sulfate-polyacrylamide gel
electrophoresis.
Rabbit polyclonal antiserum was generated using the recombinant
VP2 protein. The optimal titer of the anti-VP2 antibody was determined by ELISA.
The anti-VP2 antibody was able to distinguish PPV from other viruses in ELISA.