Immunoglobulin J chain
UniProtKB accession: P01591
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Go to UniProtKB: P01591
UniProtKB description: 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 dimers and/or larger polymers. It also helps to bind these immunoglobulins to secretory component.
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Structure Features
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