M3( AA 12 3to 30 2 ) and M9( AA 10 78to 12 51) also have the ability to bind to human erythrocytes,but the binding was not affected by trypsin treatment and low p H buffer elu- tion.

• 而 M3,M9与红细胞结合不受胰酶影响 ,且不能被酸性缓冲液洗脱。