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IgM (Immunoglobulin Mu Heavy Chain) (B-Cell Marker) Antibody [DA4-4; same as SA-DA4 or HB57]

In Stock
Catalog Number Formulation Size Price
3507-MSM2-P0
Purified Ab with BSA and Azide at 200ug/ml
20ug
$229.00
3507-MSM2-P1
Purified Ab with BSA and Azide at 200ug/ml
100ug
$519.00
3507-MSM2-P1ABX
Purified Ab WITHOUT BSA and Azide at 1.0mg/ml
100ug
$519.00
Flat Rate Domestic: $60 | Orders outside the US - Contact Us for Order Information | Ships next business day

Applications & Dilutions

Applications Tested Dillution Protocol Note
Flow Cytometry (Flow)
1-2ug/million cells
Immunofluorescence (IF)
1-3ug/ml
Immunohistochemistry (IHC)
1-2ug/ml
30 min at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95°C followed by cooling at RT for 20 minutes

Summary

Recognizes a protein of 75kDa, identified as mu heavy chain of human immunoglobulins. It does not cross-react with alpha (IgA), gamma (IgG), epsilon (IgE), or delta (IgD), heavy chains, T-cells, monocytes, granulocytes, or erythrocytes. This MAb is useful in the identification of leukemias, plasmacytomas, and certain non-Hodgkin's lymphomas. The most common feature of these malignancies is the restricted expression of a single heavy chain class. Demonstration of clonality in lymphoid infiltrates indicates that the infiltrate is clonal and therefore malignant.

Product Properties & Targets

Antibody Type
Host
Mouse
Species Reactivity
Research Areas
Isotype / Light Chain
IgG1 / Kappa
Cellular Localization
Cell membrane, Secreted
Gene Name
Positive Control
293T, Raji or hPBL cells. Tonsil or Spleen.
Immunogen
Heavy chain of human IgM
Alternate Names
Immunoglobulin heavy constant mu, Ig mu chain C region, Ig mu chain C region BOT, Ig mu chain C region GAL, Ig mu chain C region OU, AGM1; IGHM; Constant Region of Heavy Chain of IgM; Ig Mu Chain C Region

Database Links

Entrez Gene ID
SwissProt

Additional Information

Clone
DA4-4; same as SA-DA4 or HB57
Chromosome Location
14q32.33
Mol. Weight of Antigen
50-75kDa

Functions

  • Constant region of immunoglobulin heavy chains. Immunoglobulins, also known as antibodies, are membrane-bound or secreted glycoproteins produced by B lymphocytes. In the recognition phase of humoral immunity, the membrane-bound immunoglobulins serve as receptors which, upon binding of a specific antigen, trigger the clonal expansion and differentiation of B lymphocytes into immunoglobulins-secreting plasma cells. Secreted immunoglobulins mediate the effector phase of humoral immunity, which results in the elimination of bound antigens (PubMed:22158414, PubMed:20176268). The antigen binding site is formed by the variable domain of one heavy chain, together with that of its associated light chain. Thus, each immunoglobulin has two antigen binding sites with remarkable affinity for a particular antigen. The variable domains are assembled by a process called V-(D)-J rearrangement and can then be subjected to somatic hypermutations which, after exposure to antigen and selection, allow affinity maturation for a particular antigen (PubMed:17576170, PubMed:20176268). IgM antibodies play an important role in primary defense mechanisms. They have been shown to be involved in early recognition of external invaders like bacteria and viruses, cellular waste and modified self, as well as in recognition and elimination of precancerous and cancerous lesions. The membrane-bound form is found in the majority of normal B-cells alongside with IgD. Membrane-bound IgM induces the phosphorylation of CD79A and CD79B by the Src family of protein tyrosine kinases. It may cause death of cells by apoptosis. It is also found in soluble form, which represents about 30% of the total serum immunoglobulins where it is found almost exclusively as a homopentamer. After the antigen binds to the B-cell receptor, the secreted form is secreted in large amounts (PubMed:3137579, PubMed:16895553).

Key References

  • Maruyama S, et. al. Activation of human B cells and inhibition of their terminal differentiation by monoclonal anti-mu antibodies. Journal of Immunology 1985; 135(1):192-9.
  • Rudich SM, et. al. Human B cell activation. Evidence for diverse signals provided by various monoclonal anti-IgM antibodies. Journal of Experimental Medicine, 1985; 162(4):1236-55.

Storage & Stability

Antibody with azide - store at 2 to 8°C. Antibody without azide - store at -20 to -80°C. Antibody is stable for 24 months. Non-hazardous. No MSDS required.

Limitations

This antibody is available for research use only and is not approved for use in diagnosis.

Supplied as

200ug/ml of Ab Purified from Bioreactor Concentrate by Protein A/G. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.

Warranty

There are no warranties, expressed or implied, which extend beyond this description. Company is not liable for any personal injury or economic loss resulting from this product.

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