FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (5): 126-129.doi: 10.7506/spkx1002-6630-200905029

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Construction of Plant Expression Vector of Salmon Calcitonin (sCT) and Calcitonin Gene-related Peptide (CGRP) Fusion Gene

YU Qiong,WANG Chao,LI Rong-tian,PING Wen-xiang,SUN Yi-ning,LI Hong-li   

  1. (Key Laboratory of Molecular Biology, College of Heilongjiang Province, College of Life Science, Heilongjiang University, Harbin
    150080, China)
  • Received:2008-03-20 Revised:2008-10-28 Online:2009-03-01 Published:2010-12-29
  • Contact: YU Qiong E-mail:yuqiong00001@163.com

Abstract:

The fusion gene of sCT and CGRP was designed according to the principles of genetic engineering method and the bias codon used by plant. An AMV RNA4 5'-UTR sequence and a 6×His tag were added before the gene, and the Gly was added at the end of the fusion gene. The fusion gene was obtained from pUC(AMV / CGRP / msCT) by Sac I and Sma I digestion, then cloned into plant expression vector pBI121 by T4 DNA ligase to construct recombinant plasmid pBI AMV / CGRP / msCT, and transformed into E.coli DH5α to be kept. The gene sequencing indicated that the expression vector pBI AMV / CGRP / msCT has been successfully constructed.

Key words: salmon calcitonin, calcitonin gene-related peptide, genetic engineering, fusion expression, hypertension, osteoporosis

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