›› 2016, Vol. 43 ›› Issue (12): 3085-3093.doi: 10.16431/j.cnki.1671-7236.2016.12.001

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Cloning and Sequence Analysis of Ankyrin Genes from Orf Virus GDZC Strain

GE Shi-kun, ZHANG Kai-zhao, LIU Jian-xin, WANG Qing-nan, YU Meng, TAO Pan, NING Zhang-yong   

  1. College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
  • Received:2016-06-16 Online:2016-12-20 Published:2016-12-22

Abstract:

To investigate the role of ankyrin proteins encoding by Orf virus (ORFV) in the immune modulation to host infection, five ankyrin (ANK) genes of ORFV GDZC strain were amplified using specific primers by PCR amplification and cloning from the viral genome DNA which extracted from virus infection cells,and their sequences and coding protein structure bioinformatics analysis were performed. The results showed that ORFV008, ORFV123, ORFV126, ORFV128 and ORFV129 consisted of 516, 525, 497, 501 and 516 amino acids, respectively, which shared a nucleotide identity of 98.3%, 98.7%, 97.9%, 97.3% and 98.0% with those of ORFV OV-SA00 strain, respectively. All of five ANK proteins contained ANK and F-box structural domain that showed they were structure conservative proteins. The analysis of protein transmembrane showed that ORFV123 and ORFV128 had no potential transmembrane domains, while the ORFV129, ORFV008 and ORFV126 had one, two and three potential transmembrane domains, respectively. And these ANK proteins had no signal peptide. These results provided the basic data for further study of the ANK proteins in the pathogenic and immune evasion mechanisms of ORFV.

Key words: Orf virus; ANK protein; cloning; sequence analysis

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