›› 2016, Vol. 43 ›› Issue (8): 1929-1937.doi: 10.16431/j.cnki.1671-7236.2016.08.001

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Cloning and Construction of Eukaryotic Expression Vector of Buffalo STAT4 Gene

ZHU Peng, PANG Chun-ying, DUAN An-qin, DENG Ting-xian, LU Xing-rong, LIANG Xian-wei   

  1. Guangxi Key Laboratory of Buffalo Genetics, Breeding and Reproduction, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning 530001, China
  • Received:2016-01-21 Online:2016-08-20 Published:2016-08-23

Abstract:

In order to elucidate the function and molecular mechanisms of buffalo signal transducer and activator of transcription 4 (STAT4) gene during folliculogenesis,embryogenesis and lactogenesis,buffalo STAT4 gene was studied with 3' -RACE,bio-informatics analysis,eukaryotic vector construction and cell transfection technologyin this study.The results showed that the coding region of buffalo STAT4 was 2 247 bp,3'-was 268 bp,and encoded 748 amino acids;BLAST analysis showed that the buffalo STAT4 gene shared 99%,99%,99%,95%,93%,93% and 92% of similar nucleotide sequence with that of Bos taurus, Capra hircus,Ovis aries,Sus scrofa,Equus caballus,Canis lupus and Homo sapiens,respectively.STAT4 protein was weakly acidic,without signal peptide,located in the cytoplasmic,and with the presence of STAT_int,STAT_alpha,STAT_bind and SH2_STAT4 domain.bta-miR-200a,bta-miR-2429 and bta-miR-2410 and so on were potential microRNAs of STAT4 3'-UTR.The buffalo STAT4 eukaryotic expression vector was successfully constructed,after transfected into HEK293T cell lines,STAT4-EGFP fusion protein was detectable.

Key words: buffalo; STAT4 gene; cloning; bio-informatics analysis; vector construction

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