• Product name
    Anti-hCG beta 2 epitope antibody [INN-hCG-22]
  • Description
    Mouse monoclonal [INN-hCG-22] to hCG beta 2 epitope
  • Host species
  • Specificity
    Ab11389 shows strong reaction in RIA with hCG and beta hCG with some reactivity on hLH (12%) and beta hLH (34%). No reaction with hFSH, hTSH, alpha hCG and alpha hLH. Affinity constant = 1.6 x 109m (Ka).
  • Tested applications
    Suitable for: ELISA, IHC-P, WBmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Full length protein (Human).



Our Abpromise guarantee covers the use of ab11389 in the following tested applications.

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

Application Abreviews Notes
ELISA 1/100 - 1/500.
IHC-P Use at an assay dependent concentration.
WB Use at an assay dependent concentration. Use under non reducing condition. Predicted molecular weight: 17.7 kDa.


  • 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. The beta subunit of chorionic gonadotropin (CG) is encoded by 6 highly homologous genes which are arranged in tandem and inverted pairs on chromosome 19q13.3, and contiguous with the luteinizing hormone beta subunit gene.
  • Cellular localization
  • Database links
  • Alternative names
    • CG beta antibody
    • CGB antibody
    • Choriogonadotropin subunit beta antibody
    • Chorionic gonadotrophin chain beta antibody
    • hCGB antibody
    see all


ab11389 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

1-2 of 2 Abreviews or Q&A


DISCOUNT CODE: *** Expiration date: February 15, 2012 I am very pleased to hear you would like to submit an Abreview for ab11388 in IP. This code will give you 1 free primary antibody before the expiration date. To redeem this offer, please submit an Abreview for ab11388 in IP and include this code in the “Additional Comments” section so we know the Abreview is for this promotion. For more information on how to submit an Abreview, please visit the site: www.abcam.com/Abreviews. The code will be active once the Abreview has been submitted and can be redeemed in one of the following ways: 1) Call to place your order and mention the code to our customer service department; 2) Include the code in your fax order; 3) Place your order on the web and enter the promotional code. Any feedback that you can provide will be greatly appreciated, whether positive or negative. If you have any further questions, please do not hesitate to contact us. We look forward to receiving your Abreview and wish you luck with your research. The terms and conditions applicable to this offer can be found here: www.abcam.com/collaborationdiscount.  

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Thank you for your enquiry. We do not have a recommended dilution on our datasheet so I would advise to try a range of dilutions in a preliminary experiment (e.g. 1:100, 1:500, 1:1000, 1:2000) and optimise the dilution according to the results of your preliminary experiment. I hope this information helps, please let us know how you get on or if you need any further advice,

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