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人绒毛膜促性腺激素(hCG)是糖蛋白激素家庭成员之一,并归属于生长因子的半胱氨酸家族。像该家族的其他成员一样,hCG由α-链(在该糖蛋白激素家族所有成员中是共同的)与特异的β-链非共价结合组成的异质二聚体分子。hCG起始表达于早期胚泡,着床后由合胞滋养层表达。hCG刺激黄体生
Human chorionic gonadotropin (hCG) is a member of the family of glycoprotein hormones and belongs to the cysteine family of growth factors. Like other members of this family, hCG is a heterodimeric molecule composed of non-covalently bound a-chains (common among all members of the glycoprotein hormone family) and specific? -chains. hCG is initially expressed in early blastocysts and is expressed by syncytiotrophoblasts after implantation. hCG stimulate luteal