The Preparation Investigation on Human Annexin V Dimmer(diannexin) / 医学研究杂志

ABSTRACT

Objective To prepare human annexin V dimmer and make chance for its pharmacological research.Methods Pichia pastoris transformed by human annexin V gene was used in this investigation.The engineered yeast was cultured in BMGY media and induced with methanol media BMMY for secreting expression of human annexin V.The final BMMY media supernatant was adopted for preparation of human annexin V dimmer by ammonium sulfate precipitation,molecular sieve separation and ultra-filtration concentration.The purification process was monitored by SDS-PAGE and coomassie brilliant blue staining.Results Human annexin V was obtained after two days induction of pichia pastoris in BMMY media.The human annexin V dimmer was successfully prepared from culture supernant by serial ammonium sulfate precipitation,molecular sieve separation and ultra-filtration concentration.Conclusion We prepare the human annexin V dimmer(diannexin V)successfully.