Alpha-fetoprotein (AFP, α-fetoprotein) is a protein which in humans is encoded by the AFP gene.
This gene encodes alpha-fetoprotein, a major plasma protein produced by the yolk sac and the liver during fetal life. The protein is thought to be the fetal counterpart of serum albumin, and the alpha-fetoprotein and albumin genes are present in tandem on chromosome 4. Alpha...