目的:建立分离纯化血红蛋白α、β链方法。方法:对二氯汞苯甲酸(CPMB)处理的血红蛋白经CM SepharoseFF柱分离出结合有CPMB的α、β链,然后分别过Bio-gel p6柱除去α、β链上结合的CPMB。TricineSDS--PAGE检测蛋白分子量、纯度,采用琼脂糖弥散法监测抑茵效应。结果:该法成功分离出具较高纯度的血红蛋白α、β链,二者均具有杀大肠杆菌活性。结论:本分离程序简单、经济,可得到高纯度的天然a、B链,有助于对其后续的进一步研究。
Objective: To establish a method for separating and purifying the alpha and beta subunits of human hemoglobin. Methotis: hemoglobin dealed with p-chloromercuribenzoate(CPMB)was applied to CM Sepharose FF column to get separated alpha-CPMB and beta-CPMB. Then CPMB was removed from alpha or beta chains by passing through Bio-gel p6 column respectively. The purified products were monitored by tricine SDS-PAGE. Agarose radial diffusion assay was used for their antimicrobial activity analysis. Results: High purity of alpha and beta chains were separated successfully, and the alpha and beta subunits of purified hemoglobin showed the activity against Escherichia coli. Conclusion: This isolation procedure was easy, economical and would be useful for the study of the multiple functions of hemoglobin and its frangments.