• Product name
    10X Blocking Buffer
  • Tested applications
    Suitable for: ICC, WB, ELISA, In-Cell ELISA, ICC/IFmore details
    Unsuitable for: Flow Cyt
  • General notes
    Description: A casein-based blocking solution buffered to pH 7.5. An efficient blocking solution to reduce non-specific background staining in immunoassay techniques including western blot, immunocytochemistry, sandwich ELISA and in-cell ELISA.

    Preparation: Dilute to 1X in deionized water or PBS (e.g. 1mL 10X blocking buffer + 9mL water/PBS). Diluting in PBS instead of water makes a somewhat more stringent blocking buffer due to the presence of salt in the PBS. Blocking Buffer is pH 7.5. The user should determine empirically whether dilution in water or PBS is most appropriate for the assay at hand. Use diluted block solution promptly. The diluted block solution can be stored at 4C for short periods of time.
    Shelf life for the 10X stock is 1 year.



Our Abpromise guarantee covers the use of ab126587 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
ICC Use at an assay dependent concentration.
WB Use at an assay dependent concentration.
ELISA Use at an assay dependent concentration.
In-Cell ELISA Use at an assay dependent concentration.
ICC/IF Use at an assay dependent concentration.
  • Application notes
    Is unsuitable for Flow Cyt.
  • Images

    • Primary :

      All Lanes : top membranes with Anti AMPK pThr172 + Thr183 (ab133448) at 1/1000. Bottom membranes with Anti AMPKa (ab110036) at 1/1000

      Lane 1 = AMPKa1 protein

      Lane 2 = C2C12 cells treated with AICAR

      Lane 3 = untreated C2C12 cells

      Secondary: Goat polyclonal to Rabbit IgG – H&L – Pre-Adsorbed (HRP) and Goat polyclonal to Mouse IgG – H&L – Pre-Adsorbed (HRP) at 1:10,000 developed using the ECL technique.

      Performed under reducing conditions (50mM DTT – Sample heated at 60ºC). Predicted band size for AMPKa: 64 kDa Observed band size for AMPKa: 64 kDa

      Left membrane All blocking steps = 1X blocking reagent ab126587 diluted in PBST

      Right membrane All blocking steps = 5% Milk in PBST Exposure time : 5 minutes


    This product has been referenced in:
    • Bobarnac Dogaru GL  et al. The role of Hedgehog-responsive fibroblasts in facial nerve regeneration. Exp Neurol 303:72-79 (2018). IHC . Read more (PubMed: 29337143) »
    • Wang L  et al. Upregulation of microRNA-181b inhibits CCL18-induced breast cancer cell metastasis and invasion via the NF-?B signaling pathway. Oncol Lett 12:4411-4418 (2016). Read more (PubMed: 28105154) »

    See all 2 Publications for this product

    Customer reviews and Q&As

    The the lab has confirmed this blocking solution is casein based with no BSA, so it may be an option for your ELISA if this is a concern for you.

    Please let me know if you have any further questions!

    Thank you for contacting us.

    Yes – in our experience, as with PBS, the extra salt in TBS will make a more stringent block/ prevent non specific binding.

    I hope this information is helpful to you. Pl...

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    1. ab126420, the components of the blocking buffer are proprietary, and the solution is a standard blocking solution.

    2. ab111542: The blocking solution in the kit is the same as the 10X blocking solution sold separately (ab126587). It is...

    Read More

    Thank you for contacting us.

    In this case a casein block was used as BSA and serums would cause high background. We do carry a casein based blocking solution, ab126587,which we have used extensively and feel is a superior product in ICC. M...

    Read More


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