MeSH definition : The extracellular moiety of the POLYMERIC IMMUNOGLOBULIN RECEPTOR found alone or complexed
with IGA or IGM, in a variety of external secretions (tears, bile, colostrum.) Secretory
component is derived by proteolytic cleavage of the receptor during transcytosis.
When immunoglobulins IgA and IgM are bound to the receptor, during their transcytosis
secretory component becomes covalently attached to them generating SECRETORY IMMUNOGLOBULIN
A or secretory IMMUNOGLOBULIN M.;
MeSH synonym : secretory piece;
Wikipedia link : https://en.wikipedia.org/wiki/Secretory piece;
The extracellular moiety of the POLYMERIC IMMUNOGLOBULIN RECEPTOR found alone or complexed
with IGA or IGM, in a variety of external secretions (tears, bile, colostrum.) Secretory
component is derived by proteolytic cleavage of the receptor during transcytosis.
When immunoglobulins IgA and IgM are bound to the receptor, during their transcytosis
secretory component becomes covalently attached to them generating SECRETORY IMMUNOGLOBULIN
A or secretory IMMUNOGLOBULIN M.