Objective: Snake bile is a normal Traditional Chinese Medicine. This research focuses on the principal transporter in charge of bile acid secretion- bile acid export pump(BSEP) in snake liver to identify BSEP in genetic and protein level. That could built up foundation for further study on bile metabolism and regulation.Methods: In genetic level, specific primers were designed based on bioinformatic prediction on genes coding BSEP in three kinds of snakes(Ophiophagus Hannah, Thamnophis sirtalis and Python b...