JCHAIN Antilichaam / Immunoglobuline J keten

Immunoglobulin J chain, also known as IGJ and IGCJ, is a secreted polypeptide which is the first immunoglobulin-related polypeptide expressed during the embryogenesis and differentiation of B cells in the fetal liver. The joining Immunoglobulin J chain is a small polypeptide, expressed by mucosal and glandular plasma cells, which regulates polymer formation of immunoglobulin (Ig) A and IgM. Immunoglobulin J chain / IGJ serves to link two monomer units of either IgM or IgA. In the case of IgM, the J chain-joined dimer is a nucleating unit for the IgM pentamer, and in the case of IgA, it induces larger polymers. Immunoglobulin J chain / IGJ also helps to bind these immunoglobulins to the secretory component. J-chain incorporation into polymeric IgA (pIgA, mainly dimers) and pentameric IgM endows these antibodies with several salient features. Immunoglobulin J chain / IGJ is involved in creating the binding site for pIgR / SC in the Ig polymers, not only by determining the polymeric quaternary structure but also by interacting directly with the receptor protein. Both the immunoglobulin J chain / IGJ and the pIgR/SC are key proteins in secretory immunity.

Western blot: 0.5-1 µg/mL, Immunohistochemistry (FFPE) : 2-5 µg/mL, Immunofluorescence: 5 µg/mL, Flow cytometry: 1-3ug/million cells, ELISA: 0.1-0.5 µg/mL

P01591

Human, Mouse, Rat

An E.coli-derived human recombinant protein (amino acids Q23-D159) was used as the immunogen for the JCHAIN antibody.

WB, IHC-P, IF, FACS, ELISA

Antigen affinity purified

Antigen affinity purified

Lyophilized from 1X PBS with 2% Trehalose

This JCHAIN antibody is available for research use only.

After reconstitution, the JCHAIN antibody can be stored for up to one month at 4°C. For long-term, aliquot and store at -20°C. Avoid repeated freezing and thawing.

0.5 mg/mL if reconstituted with 0.2ml sterile DI water

Optimal dilution of the JCHAIN antibody should be determined by the researcher.

Immunofluorescent staining of FFPE human U-2 OS cells with JCHAIN antibody (green) and DAPI nuclear stain (blue) . HIER: steam section in pH6 citrate buffer for 20 min.