Alpha-Fetoprotein (AFP) is a Mr 70,000 glycoprotein, produced at high levels by the fetal liver, transcriptionally repressed after birth.

• 甲胎蛋白(Alpha-Fetoprotein，AFP)是个70kDa的糖蛋白，在胎儿期由胎肝大量合成，在出生后则表达急剧下降。