1、Exp . 3 Electrophoresis of serum-globin on cellulose acetate membrane,血清蛋白的醋酸纤维素薄膜电泳胡 斌,Aim(目的),Study the knowledge of electrophoresis(了解电泳的一般知识) Master the theory and method of cellulose acetate electrophoresis to separate serum proteins(掌握醋酸纤维素薄膜电泳分离血清蛋白的原理和方法),1. Electrophoresis,Electron Molecula
2、r weight Figure电荷 分子量 形状,pHpI, -,1. Electrophoresis,Electron Molecular weight Figure电荷 分子量 形状,pHpI, -,2、血清蛋白质的等电点及分子量,血清蛋白质,等电点,分子量,清蛋白,1 球蛋白,2 球蛋白, 球蛋白, 球蛋白,4.64,5.06,5.06,5.12,6.857.3,69,000,200,000,300,000,90,000150,000,156,000950,000,Materials,Cellulose acetate (28 cm) Electrophoresis buffer (电泳
3、缓冲液,PH=8.6) Protein staining solution (染色液,含氨基黑) poaching solution (漂洗液,乙醇),Methods,1、Preparing for the cellulose acetate(准备醋酸纤维素薄膜),2、Loading samples (serum or globin)(上样),3、Electrophoresis (110 V 4560 min),4、Staining (染色) 2-5min,5、Destaining (脱色) 3次,Results,Make certain every band on cellulose corresponding to which kind of serum protein,+,_,?,?,?,?,?,?,?,?,?,Thinking and Discussion,1. 电泳后,条带上各为何种蛋白,并分析原因;,2. 电泳过程中,点样端至于何极,为什麽?,3. 根据自己的实验结果,分析可能存在的原因。,