›› 2017, Vol. 44 ›› Issue (11): 3130-3136.doi: 10.16431/j.cnki.1671-7236.2017.11.003

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Construction and Expression of the Eukaryotic Expression Plasmid and Mutant of β2 Adrenergic Receptor of Pig

ZHANG Hai-jie1,2, XIE Hua-jie1,2, JIANG Li-jie1,2, LIAN Jun-wei1,2, LIU Min1,2, Min Tian-qi1,2, WANG Zhi-qiang1,2   

  1. 1. Laboratory of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China;
    2. Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
  • Received:2017-07-17 Online:2017-11-20 Published:2017-11-21

Abstract:

This study was aimed to construct the eukaryotic expression plasmid of β2 adrenergic receptor (β2AR) and mutants including D130N, C285S and D130N/C285S and demonstrate the plasmids could be expressed in HEK293T successfully. The β2AR gene was amplified by PCR from pig genome DNA, then subcloned into pcDNA3.1(+) vector by homologous recombination to construct the eukaryotic expression plasmid, added the c-myc tag in the plasmid which named myc-pcDNA3.1(+)-β2AR. We made the eukaryotic expression vector as the template to construct the mutant, transfected the plasmids into HEK293T, extracted the protein and demonstrated the expression by Western blotting. The results of sequencing showed that the 130th amino acid had been mutate from aspartic acid to asparagine, the 285th amino acid had been mutate from cysteine to serine. Also, we confirmed that the plasmids could be expressed in HEK293T successfully. The results showed that the recombinant plasmid myc-pcDNA3.1(+)-β2AR, myc-pcDNA3.1(+)-β2AR-D130N, myc-pcDNA3.1(+)-β2AR-C285S and myc-pcDNA3.1(+)-β2AR-D130N/C285S were constructed correctly and could be expressed in HEK293T, which laid the foundation for further studies on the function and the pharmacology activity of β2AR.

Key words: pig; β2AR gene; eukaryotic expression vector; mutant; Western blotting

CLC Number: