• Product name

    Human alpha 2 Macroglobulin ELISA Kit
    See all alpha 2 Macroglobulin kits
  • Detection method

  • Precision

    Sample n Mean SD CV%
    Overall 4.4%
    Sample n Mean SD CV%
    Overall 8.1%
  • Sample type

    Cell culture supernatant, Saliva, Milk, Cerebral Spinal Fluid
  • Assay type

    Sandwich (quantitative)
  • Sensitivity

    = 2 ng/ml
  • Range

    1 ng/ml - 25 ng/ml
  • Recovery

    98 %

  • Assay time

    4h 00m
  • Assay duration

    Multiple steps standard assay
  • Species reactivity

    Reacts with: Human
  • Product overview

    Abcam’s alpha 2 Macroglobulin Human in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of alpha 2 Macroglobulin in saliva, milk, cerebrospinal fluid and cell culture supernatants.

    An alpha 2 Macroglobulin specific antibody has been precoated onto 96-well plates and blocked. Standards or test samples are added to the wells and subsequently an alpha 2 Macroglobulin specific biotinylated detection antibody is added and then followed by washing with wash buffer. Streptavidin-Peroxidase Conjugate is added and unbound conjugates are washed away with wash buffer. TMB is then used to visualize Streptavidin-Peroxidase enzymatic reaction. TMB is catalyzed by Streptavidin-Peroxidase to produce a blue color product that changes into yellow after adding acidic stop solution. The density of yellow coloration is directly proportional to the amount of alpha 2 Macroglobulin captured in plate.

    The entire kit may be stored at -20°C for long term storage before reconstitution - Avoid repeated freeze-thaw cycles.

  • Tested applications

    Suitable for: Sandwich ELISAmore details
  • Platform




Our Abpromise guarantee covers the use of ab108883 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
Sandwich ELISA Use at an assay dependent concentration.


  • Representative Standard Curve using ab108883.



This product has been referenced in:

  • Whiten DR  et al. Single-Molecule Characterization of the Interactions between Extracellular Chaperones and Toxic a-Synuclein Oligomers. Cell Rep 23:3492-3500 (2018). Read more (PubMed: 29924993) »
  • Sturtzel C  et al. The transcription factor MEF2C negatively controls angiogenic sprouting of endothelial cells depending on oxygen. PLoS One 9:e101521 (2014). Read more (PubMed: 24988463) »
See all 2 Publications for this product

Customer reviews and Q&As

1-3 of 3 Abreviews or Q&A


Unfortunately, I can confirm that the antibodies used in these kits have been raised against recombinant protein and purified proteins. The exact epitope of the antibodies have not been investigated further. We are therefore not able to provide you with any information as to the site of recognition involved.

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Abreview for alpha 2 Macroglobulin Human ELISA Kit

Excellent Excellent 5/5 (Ease of Use)

Sample: Human Cell (HepG2)
Specification: HepG2
Amount of Sample: 0.125ug standard µg
Type of Kit Used: ELISA
Positive control: Provided alpha 2 Macroglobulin standard
Did you use the Abcam Kit protocol?: Yes

Additional data
Additional Notes: Recognized human A2M. Did not recognize bovine A2M in FBS.

Abcam user community

Verified customer

Submitted Jul 03 2012


Thank you for your inquiry. ab108884 is an alpha 1 microglobulin human ELISA kit, Swiss Prot P02760. Alpha1-microglobulin (1M), also called protein HC, is a tubular plasma and tissue protein that belongs to the lipocalin transport protein superfamily for small hydrophobic molecules. It contains 184 amino acids and weighs 26-kDa (1-2). Mature 1M and bikunin (urinary trypsin inhibitor) result from a common precursor (3). (1) Grubb AO et al. (1983) Biol Chem. 258:14698-14707 (2) Ekström B and Berggård I. (1977) J Biol Chem 252:8048-8057 (3) Vetr H and Gebhard W (1990) Biol Chem Hoppe Seyler. 371:1185-1196 https://www.abcam.com/alpha-1-Microglobulin-Human-ELISA-Kit-ab108884.html http://www.uniprot.org/uniprot/P02760#PRO_0000017886 ab108883 is an is an alpha 2 macroglobulin human ELISA kit, Swiss Prot P01023. It's a major serum protein. (1) Pineda-Salgado L et al (2005) Gene Expr Patterns. 6(1):3-10 (2) Jensen PE et al (2004) Biocim Biophys Acta. 5; 1690(3): 203-7 (3) Yang AH et al (1997) Nephrol Dial Transplant 12(3): 465-9 (4) Shiota G et al (1995) J Med 26(5-6): 295-308. https://www.abcam.com/alpha-2-Macroglobulin-Human-ELISA-Kit-ab108883.html http://www.uniprot.org/uniprot/P01023 ab108823 is a complement C3 human ELISA kit, Swiss Prot P01024.  Complement protein C3 is the fourth component to attach in the complement reaction sequence. It is a beta-globulin with a sedimentation coefficient of 5.5 and a molecular weight of 185,000. (1) Sahu A et al. (2001) Immunol. Rev. 180: 35-48 (2) Sacks S et al. 92003) J Mol Med. 81(7): 404-10 (3) Ramos-Casals M et al. (2004) Rheumatology (Oxford). (4) Gardinali M et al. (1998) Clin.Immunol.Immunopathol .87(3): 97-303 https://www.abcam.com/Complement-C3-Human-ELISA-kit-ab108823.html http://www.uniprot.org/uniprot/P01024 ab108841 is a fibrinogen human ELISA kit, Swiss Prot P02671, P02675, and P02679.  Fibrinogen (FBG) is a homodimer of molecular mass 340 kDa, made up of two sets of α, β, γ polypeptide chains, and synthesized in the parenchymal cell of the hepatocyte and in the megakaryocyte (1). FBG plays a major role in coagulation, and both elevated and decreased levels have clinical significance. Upon cleavage by thrombin in the initial stages of coagulation activation, FBG self-assembles to yield a fibrin clot matrix that subsequently is crosslinked by factor XIIIa to form an insoluble network. FBG also binds to the platelet glycoprotein IIbIIIa receptor so as to form bridges between platelets, thus facilitating aggregation (2). Elevated plasma FBG has been identified as an independent risk factor for coronary atherosclerosis and ischemic heart disease (3, 4). Individuals with congenital absence of FBG, termed afibrinogenemia, have prolonged bleeding times. (1) Doolittle, R.F. (1984) Annu. Rev. Biochem 53:195 (2) Handley, D.A. and Hughes, T.E. (1997) Thromb. Res. 87:1 (3) Handa, K. et al. (1989) Atherosclerosis 77:209 (4) Mannucci, P.M. and Mari, D. (1993) Fibrinolysis 3:51 (5) Amiral J. (1995) Clin. Appl. Thrombosis Hemostasis 1:243 http://www.uniprot.org/uniprot/P02671 http://www.uniprot.org/uniprot/P02675 http://www.uniprot.org/uniprot/P02679 I hope this information helps.  Please contact us with any other questions.

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