• Nature
  • Source
  • Amino Acid Sequence
    • Species
    • Molecular weight
      36 kDa
    • Amino acids
      22 to 165


Our Abpromise guarantee covers the use of ab126652 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Biological activity

    Activity: Lot specific IU/mg (ELISA) 

  • Applications



  • Purity
    >= 50 % SDS-PAGE.
    Column Chromatography
  • Form
  • Additional notes
    All Human source materials have tested negative for HIV antibodies, HCV antibodies, HAV antigen, HBsAg and HIV (PCR). No test guarantees a product to be non-infectious. Therefore, all material derived from Human fluids or tissues should be considered as potentially infectious.
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. After reconstitution store at -20ºC. Avoid freeze / thaw cycles.

    Constituent: 0.4% Ammonium bicarbonate

    This product is an active protein and may elicit a biological response in vivo, handle with caution.

  • Reconstitution
    Reconstitute using neutral pH buffer of choice. Avoid extreme high or low pH.

General Info

  • Alternative names
    • anterior pituitary glycoprotein hormones common subunit alpha
    • CG alpha
    • CG-ALPHA
    • CGB
    • CGB3
    • CGB5
    • CGB7
    • choriogonadotropin alpha chain
    • Chorionic gonadotrophin chain beta
    • chorionic gonadotrophin subunit alpha
    • chorionic gonadotropin beta 3 subunit
    • Chorionic gonadotropin beta chain
    • Chorionic gonadotropin beta subunit
    • chorionic gonadotropin, alpha polypeptide
    • chorionic gonadotropin, beta polypeptide
    • chorionic gonadotropin, beta polypeptide 3
    • Follicle stimulating hormone alpha chain
    • follicle-stimulating hormone alpha chain
    • follicle-stimulating hormone alpha subunit
    • follitropin alpha chain
    • FSH Alpha
    • FSH-alpha
    • FSHA
    • glycoprotein hormones alpha chain
    • glycoprotein hormones, alpha polypeptide
    • GPHa
    • GPHA1
    • HCG
    • hCGB
    • Human Chorionic Gonadotropin
    • LHA
    • LSH alpha
    • LSH-alpha
    • luteinizing hormone alpha chain
    • lutropin alpha chain
    • Thyroid stimulating hormone alpha chain
    • thyroid-stimulating hormone alpha chain
    • thyrotropin alpha chain
    • TSH Alpha
    • TSH-alpha
    • TSHA
    see all
  • Relevance
    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.
  • Cellular localization


This product has been referenced in:
  • Haslam C  et al. Label-Free Sensors Based on Graphene Field-Effect Transistors for the Detection of Human Chorionic Gonadotropin Cancer Risk Biomarker. Diagnostics (Basel) 8:N/A (2018). Read more (PubMed: 29316718) »
  • Islam K  et al. A Label-Free and Ultrasensitive Immunosensor for Detection of Human Chorionic Gonadotrophin Based on Graphene FETs. Biosensors (Basel) 7:N/A (2017). Read more (PubMed: 28704926) »

See all 2 Publications for this product

Customer reviews and Q&As

Thank you for contacting us. The "1 amino acid" was actually an error, it is the default if not value is entered in the system. Thank you for bringing this to our attention, it has been corrected to show that this product is indeed full lengt...

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Thank you for your reply. I will be happy to help you further. You can call our main number (888)-77-ABCAM (22226) and ask for me. If for some reason I am unavailable, any of my colleagues will be happy to help you further. Our US Scientific Support li...

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Thank you for contacting us.

All three of these proteins (ab51782, ab77874, and ab126652) are full length native human hCG with a molecular weight of 36.7 kDa, consisting of the alpha and beta chains (UniProt: P01215 and P01233). The proteins...

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Thank you for contacting us.

I can confirm that ab126652 hCG protein (Active), HCG antigen, has been tested for theuse in ELISA.

I hope this information is helpful to you. Please do not hesitate to contact us if you need any ...

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