84-1010-92　［取扱停止］Chorionic Gonadotropin, Human, alpha (hCGa) 1ml　C5069-46

特徴

• 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 alpha- and beta-subunits.
• The alpha-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.
• Applications:Suitable for use in ELISA.
• Other applications not tested.
• Recommended Dilution:ELISA: 1:350,000 (Titer)Optimal dilutions to be determined by the researcher.
• Storage and Stability:May be stored at 4°C for short-term only.
• For long-term storage and to avoid repeated freezing and thawing, add sterile glycerol (40-50%), aliquot and store at -20°C.
• Aliquots are stable for at least 12 months at -20°C.
• For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
• Further dilutions can be made in assay buffer.