ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2017, Vol. 48 ›› Issue (6): 1076-1084.doi: 10.11843/j.issn.0366-6964.2017.06.012

Previous Articles     Next Articles

Survey on Detection and Analyses of Cap Antigenicity Prediction of Porcine Circovirus Type 3 Isolated from Partial Provinces of Southern China

ZHAN Yang1,2, WANG Dong-liang1,2#, WANG Nai-dong1,2#, JIANG Yi-fan1,2, HUANG Kun1,2, CUI Shang-jin3, JIANG Ping4,5, YANG Yi1,2,5*   

  1. 1. College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China;
    2. Research Center of Reverse Vaccinology and Laboratory of Functional Proteomics, Changsha 410128, China;
    3. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    4. College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China;
    5. Jiangsu Nannong Hi-tech Co., LTD., Jiangyin 214405, China
  • Received:2017-01-09 Online:2017-06-23 Published:2017-06-23

Abstract:

A novel genotype of porcine circovirus type 3 (PCV3) has recently been found to be widely distributed in several states in America. In order to confirm that whether PCV3 has been distributed in southern China, and make prediction about whether the PCV2 vaccines have protective effect on PCV3. In this study, nested-PCR was used for detection of PCV3 samples collected from partial provinces of southern China, PyMol and web server were used to analyze the structure of the PCV3 capsid protein (Cap). PCV3 was detected in the pigs with PDNS-like syndrome, and these pigs in farms of several provinces of southern China were co-infected with both PCV 2 and PCV 3. Analyses of the primary sequences and the 3-Dimensional (3D) structures of both PCV 2 and PCV 3 Cap demonstrates large, distinct differences in their antigenic epitopes, suggesting cross-protection between PCV2 and PCV3 is impossible. Therefore, the development of novel vaccines will most likely be required to control PCV3 prevalence and infections on farms.

CLC Number: