Biotechnology Bulletin ›› 2015, Vol. 31 ›› Issue (3): 199-206.doi: 10.13560/j.cnki.biotech.bull.1985.2015.04.029

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Songjiang Sea Bass(Trachidermus fasciatus)Analysis of Gene Cloning and Expression of Coagulation Factor XI

Qi Qi Qi Yunyue Yang Hui Bi Caihong Han Xiaodi   

  1. (Shandong University, Weihai 264209)
  • Received:2014-08-26 Online:2015-03-16 Published:2015-03-16

Abstract: It was to clone the full length cDNA encoding coagulation factor XI(FXI)of Trachidermus fasciatus. A TfXI gene from Trachidermus fasciatus(TfXI)was cloned and characterized by RACE technology. The TfXI cDNA composed of 1 287 bp with a 13 bp of 5'-UTR, 1 143 bp open reading frame(ORF)and 131 bp 3'-UTR, encoded a polypeptide of 280 amino acids. Sequence alignment of TfXI showed the highest similarity of 63% with Haplochromis burtoni FXI protein. After LPS stimulation, transcripts of TfXI were significantly increased and reached to peak at 96 h p.i. It indicated that TfXI may play an important role in immune response of T. fasciatus during pathogen challenge.

Key words: Trachidermus fasciatus, coagulation factor XI, cloning, real time PCR