• Product name

  • Description

    Sheep polyclonal to Haptoglobin
  • Host species

  • Tested applications

    Suitable for: Double Immunodiffusion, RID, Immunoelectrophoresismore details
  • Species reactivity

    Reacts with: Mouse, Rat, Rabbit, Goat, Horse, Cat, Dog, Human, Pig
    Does not react with: Chicken, Guinea pig, Cow
  • Immunogen

    Human haptoglobin purified from serum. All Hp types (Hp1-1, Hp1-2 and Hp2-2) are present in the immunogen.


  • Form

  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage buffer

    pH: 7.40
    Preservative: 0.1% Sodium azide
    Constituents: 0.1% EACA, 0.01% Benzamidine, 0.0292% EDTA
  • Concentration information loading...
  • Purity

    IgG fraction
  • Purification notes

    Antiserum is prepared by immunisation of sheep with Human Haptoglobin and, if necessary, adsorbed to monospecificity by use of solid-phase adsorbents. An immunoglobulin fraction is then produced. The titre is adjusted so that inter-batch variation is within10%. The product is 0.2µm filtered.
  • Clonality

  • Isotype

  • Light chain type

  • Research areas


Our Abpromise guarantee covers the use of ab8968 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
Double Immunodiffusion Use at an assay dependent dilution. 10µL antiserum vs 5µL serum
RID Use at an assay dependent dilution. (and Rocket IEP) 2µL antiserum/cm² gel vs 5µL neat – 1/10 dilution human serum.
The use of 3% PEG 6000 with 1.2%agarose in a suitable buffer (such as TBE or Tris-barbital pH >8.2) is recommended. Suitability for use in nephelometry, immunohistochemical procedures, enzyme-linked immunosorbent assays and Western blot has not been assessed but use in such assays should not necessarily be excluded.
Immunoelectrophoresis Use at an assay dependent dilution. 100µL antiserum vs 5µL serum
Rocket Immunoelectrophoresis Use at an assay dependent concentration.


  • Function

    As a result of hemolysis, hemoglobin is found to accumulate in the kidney and is secreted in the urine. Haptoglobin captures, and combines with free plasma hemoglobin to allow hepatic recycling of heme iron and to prevent kidney damage. Haptoglobin also acts as an Antimicrobial; Antioxidant, has antibacterial activity and plays a role in modulating many aspects of the acute phase response. Hemoglobin/haptoglobin complexes are rapidely cleared by the macrophage CD163 scavenger receptor expressed on the surface of liver Kupfer cells through an endocytic lysosomal degradation pathway.
    Uncleaved haptoglogin, also known as zonulin, plays a role in intestinal permeability, allowing intercellular tight junction disassembly, and controlling the equilibrium between tolerance and immunity to non-self antigens.
  • Tissue specificity

    Expressed by the liver and secreted in plasma.
  • Involvement in disease

  • Sequence similarities

    Belongs to the peptidase S1 family.
    Contains 1 peptidase S1 domain.
    Contains 2 Sushi (CCP/SCR) domains.
  • Cellular localization

  • Information by UniProt
  • Database links

  • Alternative names

    • Binding peptide antibody
    • BP antibody
    • Haptoglobin alpha chain antibody
    • Haptoglobin alpha(1S) beta antibody
    • Haptoglobin alpha(2FS) beta antibody
    • Haptoglobin beta chain antibody
    • Haptoglobin, alpha polypeptide antibody
    • Haptoglobin, beta polypeptide antibody
    • HP antibody
    • HP2 ALPHA2 antibody
    • HP2ALPHA2 antibody
    • HPA1S antibody
    • HPT antibody
    • HPT_HUMAN antibody
    • MGC111141 antibody
    • Zonulin antibody
    see all


This product has been referenced in:

  • Williams LM  et al. The development of diet-induced obesity and glucose intolerance in C57BL/6 mice on a high-fat diet consists of distinct phases. PLoS One 9:e106159 (2014). WB ; Mouse . Read more (PubMed: 25170916) »
  • Caperna TJ  et al. Identification and characterization of a nuclear factor-? B-p65 proteolytic fragment in nuclei of porcine hepatocytes in monolayer culture. Domest Anim Endocrinol 45:154-62 (2013). WB ; Pig . Read more (PubMed: 24011531) »
See all 3 Publications for this product

Customer reviews and Q&As


Thank you for your enquiry. All the information we have regarding ab8968 is located on the online datasheet. Ab8968 is 225.00 USD/255.00 Euro. We do not routinely offer free or trial sized samples for testing purposes. Our policy at Abcam is that if an antibody does not work as specified on the datasheet, we will offer a replacement or reimbursement. Should you decide to test an antibody in an application for which we do not have any information, please let us know how you get on and in return we will forward a GBP10/ USD15/ EUR15 Amazon gift voucher. If you have any more questions, please contact us again.

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