Biotechnology Bulletin ›› 2016, Vol. 32 ›› Issue (1): 149-155.doi: 10.13560/j.cnki.biotech.bull.1985.2016.01.025

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Cloning and Tissue-specific Expression of CAPN3 Gene in Yak

WANG Ying-jie1, 2, YAN Ping1, 2, PAN He-ping2, WU Xiao-yun1, 2, LI Ming-xia2   

  1. 1. College of Life Science and Engineering, Northwest University for Nationalities, Lanzhou 730030;
    2. Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050
  • Received:2015-04-14 Online:2016-01-09 Published:2016-01-22

Abstract: Using the longissimus of yak(Bos grunniens)back as material, the CDs sequence of yak CAPN3 gene was cloned by RT-PCR, and it was analyzed by bioinformatics. The results indicated that the length of CDs in yak CAPN3 gene was 2 469 bp and encoding 822 amino acid residues. Bioinformatics analysis showed that the protein encoded by CAPN3 was the non-secretory surface protein, containing 35 phosphorylation site, and mainly played a biological role in the cytoplasm and nuclei. The secondary structure was mainly composed of α-helices, random coil, extended chain and β-turn, having the structure domains of CysPc, calpain-Ⅲ and EFh families and no signal peptide. The CAPN3 of yak was the most similar with those of Bos taurus, Ovis aries and Sus scrofa in phylogenetic tree. Real-time PCR analysis revealed the expressions of CAPN3 in varied tissues. There were expressions in all 7 tissues, and they were high in the muscle and pancreas.

Key words: Bos grunniens, CAPN3 gene, cloning, bioinformatics, expression pattern