They are simple proteins combined with nonprotein groups (prosthetic groups).
They are simple proteins combined with nonprotein groups (prosthetic groups).
它们是由简单蛋白质结合非蛋白的基团（辅基）组成的。
They are simple proteins combined with nonprotein groups (prosthetic groups).
它们是由简单蛋白质结合非蛋白的基团（辅基）组成的。