Product Description

Human IgM Polyclonal Antibody

Sizes: 50µl, 100µl

Catalogue Numbers: BS79139-50, BS79139-100

Product: 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Swiss-Prot: P01871

Host: Rabbit

Reactivity: Human

Applications: WB

All Applications: WB,1:200 - 1:1000

Background: Immunoglobulins (Ig) are the antigen recognition molecules of B cells. An Ig molecule is made up of 2 identical heavy chains and 2 identical light chains joined by disulfide bonds so that each heavy chain is linked to a light chain and the 2 heavy chains are linked together. Each Ig heavy chain has an N-terminal variable (V) region containing the antigen-binding site and a C-terminal constant (C) region, encoded by an individual C region gene, that determines the isotype of the antibody and provides effector or signaling functions. The heavy chain V region is encoded by 1 each of 3 types of genes: V genes, joining (J) genes, and diversity (D) genes. The C region genes are clustered downstream of the V region genes within the heavy chain locus on chromosome 14. The IGHM gene encodes the C region of the mu heavy chain, which defines the IgM isotype. Naive B cells express the transmembrane forms of IgM and IgD on their surface. During an antibody response, activated B cells can switch to the expression of individual downstream heavy chain C region genes by a process of somatic recombination known as isotype switching. In addition, secreted Ig forms that act as antibodies can be produced by alternative RNA processing of the heavy chain C region sequences. Although the membrane forms of all Ig isotypes are monomeric, secreted IgM forms pentamers, and occasionally hexamers, in plasma.

Purification and Purity: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Storage and Stability: Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.

Specificity: Unmodification

Bioworld Molecular Weight: 80KDa

Note: For research use only, not for use in diagnostic procedure.

Extra Notes: Western blot analysis of extracts of Raji cells, using Human IgM antibody at 1:500 dilution.
Secondary antibody: HRP Goat Anti-Rabbit IgG at 1:10000 dilution.
Lysates/proteins: 25ug per lane.
Blocking buffer: 3% non-fat dry milk in TBST.
Detection: ECL Basic Kit.
Exposure time: 30s.

Alternative Name: IGHM; AGM1; MU; VH

Immunogen: Recombinant fusion protein of human IGHM(P01871).

Conjugate: Unconjugated

Modification: Unmodified