›› 2013, Vol. 40 ›› Issue (1): 21-24.

Previous Articles     Next Articles

Cloning and Construction of Eukaryotic Expression Vector of Chicken ST3GAL Ⅰ Gene

LIU Yuan-yuan, WANG Jun-ya, ZHANG Xiao-juan, CHEN Li-peng, YUE Xu-long, GAO Wen-ming, LI Shuang-liang, CUI Bao-an, LI Xin-sheng   

  1. College of Husbandry and Veterinary, Henan Agricultural University, Zhengzhou 450002, China
  • Received:2012-07-26 Online:2013-01-20 Published:2013-01-14

Abstract: Total RNA was extracted from intestinal of chicken by the method of Trizol. The α-2, 3-sialyltransferase Ⅰ(ST3GAL Ⅰ) gene’s cDNA was amplified by reverse transcription polymerase chain reaction with specific primer. The amplified fragment was cloned into pGEM-T easy vector, then got the recombinant plasmid. Sub-cloning the ORF of ST3GAL Ⅰ gene of pGEM-ST3GAL Ⅰ and inserted the eukaryotic expression vector pcDNA3.1(+). The target segment in recombinant plasmid was confirmed by PCR, restriction enzyme digestion and sequencing methods. The results indicated that ST3GAL Ⅰ gene was 1029 bp in length, the result of sequence was consistent with the sequence which included in GenBank, and without any mutation and deletion of codon. The length and directions of gene which inserted to eukaryotic expression vector pcDNA3.1 (+) were all correct. The recombinant eukaryotic expression vector pcDNA3.1(+)-ST3GAL Ⅰ had been constructed successfully, which laid the foundation for further eukaryotic expressing and studying of functional of ST3GAL Ⅰ gene.

Key words: avain influenza virus; receptor; α-2,3-sialyltransferase Ⅰ; eukaryotic expression vector

CLC Number: