PP14 protein (placental protein 14) GdA placental protein 14 GD PEP progesterone-associated endometrial protein progestagen-associated endometrial protein (placental protein 14, pregnancy-associated endometrial a glycodelin-A PEG glycodelin-S pregnancy-associated endometrial alpha-2 globulin PAEG PP14 alpha uterine protein ZIF-1 GdS GdF zona-binding inhibitory factor-1 glycodelin-F glycodelin