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免疫球蛋白是具有抗体活性的血清糖蛋白,它是一种大分子化合物,分子中除氨基酸外,还有多糖类。目前认为在人或动物血清中的免疫球蛋白至少有五种类型。1968年世界卫生组织统一命名为免疫球蛋白(Immunoglobulin)即:IgG、IgM、IgD、IgE、IgA。有的还有亚型,即在本型后面分别列上阿拉伯数字,如IgG_1,IgG_2…它们都有类似IgG相仿的结构(IgG是血清中浓度最高的,每升血液约12克)。porter首先用木瓜蛋白酶水解IgG得到两种碎片,一为Fab段,另一碎片为Fc段。每一Fab段中含有一条轻链和重链
Immunoglobulin is an antibody activity of serum glycoprotein, which is a macromolecular compound, molecules in addition to amino acids, there are polysaccharides. At present there are at least five types of immunoglobulins in human or animal serum. 1968 World Health Organization unified name for immunoglobulin (Immunoglobulin) namely: IgG, IgM, IgD, IgE, IgA. There are subtypes, ie, Arabic numerals, such as IgG_1, IgG_2, etc., are listed on the back of this type. They all have similar IgG-like structures (IgG is the highest concentration in serum, about 12 grams per liter of blood). The porter first hydrolyzed IgG with papain to obtain two fragments, one Fab fragment and the other fragment Fc fragment. Each Fab segment contains one light and heavy chain