This antibody shows strong reaction in RIA with hCG and b-hCG with some reactivity on hLH (12 %) and b-hLH (34 %). No reaction with hFSH, hTSH, a-hCG and a-hLH.Aff. Const.:1.6 x 10e9m (Ka)
Purification
Ion exchange chromatography
Immunogen
hCG. Spleen cells from an immunised BALB/c mouse were fused with cells of the mouse myeloma cell line P3 - NS1/1 - Ag 4.1.
Immunohistochemistry on paraffin sections. ELISA: 1:100 - 1:500. Western Blot: Non-reducing conditions. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Concentration
1.0 mg/mL
Buffer
Containing 0.09 % Sodium Azide
Preservative
Sodium azide
Precaution of Use
This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Handling Advice
Avoid repeated freezing and thawing.
Storage
4 °C/-20 °C
Storage Comment
Store the antibody undiluted at 2-8 °C for one month or (in aliquots) at -20 °C for longer.
Human chorionic gonadotropin (hCG) is a glycoprotein hormone produced by trophoblastic cells of the placenta beginning 10 to 12 days after conception. Maintenance of the fetus in the first trimester of pregnancy requires the production of hCG, which binds to the corpus luteum of the ovary which is stimulated to produce progesterone which in turn maintains the secretory endometrium. hCG is present only in trace amounts in non pregnant urine and sera. It 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.Synonyms: CGB, CGB3, Choriogonadotropin subunit beta, beta hCG, hCG-beta