IgM normally constitutes about 10% of serum immunoglobulins. IgM antibody is prominent in early immune responses to most antigens and is largely confined to plasma due to it's large size. Monomeric IgM is expressed as a membrane bound antibody on the surface of B cells and as a pentamer when secreted by plasma cells. Due to it's high valency IgM is more efficient than other isotypes is binding antigens with repeating epitopes (virus particles and red blood cells) and is more efficient than IgG in activiating the complement pathway. 

Immunoglobulin M

Rabbit IgM

~55 kDa  / ~25 kDa

Store at -20 °C. Stable for 12 months from date of receipt.

#M20001 His-Tag (2A8) Mouse mAb

#M20002 Myc-Tag (19C2) Mouse mAb

#M20003 HA-Tag (26D11) Mouse mAb

#M20004 GFP-Tag (7G9) Mouse mAb

#M20007 GST-Tag (12G8) Mouse mAb

#M20008 DYDDDDDK-Tag (3B9) Mouse mAb (Binds to same epitope as Sigma’s Anti-FLAG M2 Antibody)

#M20012 Anti-Myc-Tag Mouse mAb (Agarose Conjugated)

#M20013 Anti-HA-Tag Mouse mAb (Agarose Conjugated)

#M20018 Anti-DYKDDDDK-Tag Mouse Antibody (Agarose Conjugated) (Same as Sigma’s Anti-FLAG M2)

#M20118 Anti-DYKDDDDK-Tag Mouse Antibody (Magnetic Beads) (Same as Sigma’s Anti-FLAG M2)

Store at -20°C long term.