So I've colored in the glycines again in green, alanine in red, and the serines, the letter S, in purple. And you can see that the top repeat unit can be explained almost entirely by green and red, and the bottom repeat unit has a substantial amount of purple.
所以我再次用绿色标出甘氨酸 用红色标出丙氨酸 紫色的字母S代表丝氨酸 你可以看到顶部的重复单位 几乎全部可用绿色和红色显示 而下方的重复单位 则有很大一部分是紫色的