TY - JOUR T1 - Cloning and Expression of Transforming Growth Factor Beta 1 of Guanzhong Dairy Goat and its Effect on Proliferation of Goat Peripheral Blood Mononuclear Cells (PBMCs) AU - , D.K. Chen AU - Shang, C.C. AU - , Y.Q. Zhao AU - , D.Y. Cao AU - , Y.L. Yao AU - , J. Luo JO - Journal of Animal and Veterinary Advances VL - 11 IS - 8 SP - 1127 EP - 1134 PY - 2012 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2012.1127.1134 UR - https://makhillpublications.co/view-article.php?doi=javaa.2012.1127.1134 KW - TGF-B1 KW -PBMCs KW -proliferation KW -dairy goat KW -physiological state KW -amino acid AB - Transforming Growth Factor beta 1 (TGF-β1) is a pleiotropic cytokine that affects diverse biologic processes. In this study, the goat TGF-β1 gene was cloned and sequenced with length of 1173 bp. The predicted peptide of goat TGF-β1 contained 390 amino acids and 29 amino acids signal peptide. Phylogenetic analysis of different species available in GenBankTM based on the complete amino acid sequences of TGF-β1 showed that the goat was clustered with sheep sistered to bovine. The TGF-β1 mature peptide including 112 amino acids was expressed with a fusion protein of approximately 32 kDa. The goat PBMCs were proliferative stimulated by recombinant TGF-β1 but the proliferation of PBMCs stimulated by ConA was inhibited under co-stimulation of recombinant TGF-β1. These results suggest that the goat recombinant TGF-β1 would play an important role in regulating the immune responses and sustaining the balance of organism physiological state. ER -