Biotechnology Bulletin ›› 2019, Vol. 35 ›› Issue (12): 94-104.doi: 10.13560/j.cnki.biotech.bull.1985.2019-0447

• Orginal Article • Previous Articles     Next Articles

Eukaryotic Expression of BMPR1B in Sheep and Identification of Its Interaction Proteins

JIA Jian-lei1, CHEN Qian1, JIN Ji-peng2, YUAN Zan1, ZHANG Li-ping2   

  1. 1. College of Agriculture and Animal Husbandry,Qinghai University,Xining 810016;
    2. Gansu Agricultural University,College of Animal Science and Technology,Lanzhou 730070
  • Received:2019-05-21 Online:2019-12-26 Published:2019-12-03

Abstract: This work aims to study the roles and pathways of BMPR1B protein and its interactive protein in the development and ovulation of sheep ovarian oocyte. By constructing the eukaryotic expression system of BMPR1B gene and characterizing BMPR1B protein,CoIP-MS technology was used to identify the specifically interactive proteins with BMPR1B in ewe ovarian extract,and the target protein interaction network was established. Then we used bioinformatics to analyze and predict the interaction pathways of BMPR1B protein and its interaction proteins in the development and ovulation of sheep ovarian oocyte. There were 23 proteins from ewes ovary extract that were correlated with BMPR1B,while 6 target proteins(BMP2,BMP4,GDF5,GDF9,RhoD and HSP10)specifically interacted with BMPR1B. Bioinformatics analysis showed that the target protein constituted complex and close interactions with TGF-β signal transduction pathway,ovarian steroid generation pathway and MAPK signal transduction pathway,and the metabolic pathways of BMPR1B protein regulating the development and ovulation of sheep oocytes was designed based on the results of their interactions. BMPR1B protein interacts with Smads family proteins in lambing trait pathway and plays an important role in the development and ovulation of sheep oocyte.

Key words: ewes, BMPR1B, protein-protein interactions, CoIP-MS, bioinformatics