Human Chorionic Gonadotropin (HCG) is a glycoprotein which is secreted in large quantities by normal trophoblasts. It is present only in trace amounts in non-pregnant urine and sera, but rises sharply during pregnancy. HCG is composed of two non-identical, non-covalently linked polypeptide chains designated as the a-and b-subunits. The a-subunit of HCG is nearly identical to that of thyroid stimulating hormone (TSH), follicle stimulating hormone (FSH), and luteinizing hormone (LH). A germ cell tumor which is positive for cytokeratin, placental alkaline phosphatase (PLAP), and HCG but negative for EMA and AFP is probably a choriocarcinoma.

Suitable for use in FLISA. Other applications have not been tested.

Optimal dilutions to be determined by the researcher.

Store product at 4°C in the dark. DO NOT FREEZE! Stable at 4°C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: MaxLight™650 conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.

Note: Applications are based on unconjugated antibody.

HCG affinity purified from pregnancy urine

Supplied as a liquid in PBS, pH 7.2. No preservative added. Labeled with MaxLight™650.

Chromatographically purified

Recognizes human Chorionic Gonadotropin. Typical specificity: hCG: 100%, hCGa: 0%, hCGb: 0%, hLH: 80%, hTSH: 65%, FSH:~2%.