Anti-Human IgM (μ-chain specific) antibody produced in goat

whole antiserum

MDL number:

Quality Level

biological source


antibody form

whole antiserum

antibody product type

secondary antibodies




15 mM sodium azide


indirect ELISA: 1:100,000



shipped in

dry ice

storage temp.


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General description

Immunoglobulin M (IgM) is the major component of antibodies. It is the first antibody to be secreted during a primary antibody response, which is expressed in the human fetus. IgM is produced by B1 cells, which is found in blood.


The antibody preparation is specific for human IgM when tested against purified human IgA, IgG, Bence Jones Kappa and Bence Jones Lambda light chains

Biochem/physiol Actions

IgM antibodies are present as pentamers in the serum and are produced in response to antigens.
Immunoglobulin M (IgM) pentamer activates the classical pathway of complement activation and lysis of red blood cells. Monoclonal IgM antibodies provides protection against systemic infection and autoimmune diseases. It does not cross human placenta. IgM regulates B cell development.

Physical form

Supplied as a liquid containing 15 mM sodium azide as a preservative.

Storage and Stability

For continuous use, store at 2-8 °C for up to one month. For extended storage, the solution may be frozen in working aliquots. Repeated freezing and thawing is not recommended. Storage in "frost-free" freezers not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Role of natural and immune IgM antibodies in immune responses
Boes M, et al.
Molecular Immunology, 37(18), 1141-1149 (2000)
The immunological development of the human fetus
Van FR, et al.
The Journal of Experimental Medicine, 122(6), 1173-1188 (1965)
The importance of natural IgM: scavenger, protector and regulator
Ehrenstein MR and Notley, Clare A
Nature Reviews: Immunology, 10(11), 778-778 (2010)
E J Wiersma et al.
Journal of immunology (Baltimore, Md. : 1950), 160(12), 5979-5989 (1998-06-24)
Previous studies have discerned two forms of polymeric mouse IgM: moderately cytolytic (complement-activating) pentamer, which contains J chain, and highly cytolytic hexamer, which lacks J chain. To investigate the relationships among polymeric structure, J chain content, and cytolytic activity, we...

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