An IgA1 immunoglobulin complex, circulating (human) that is composed of two identical immunoglobulin heavy chains of the secretory isoform of the IgA1 isotype and two identical immunoglobulin light chains (kappa or lambda), held together by disulfide bonds, and present in the extracellular space, in mucosal areas or other tissues, or circulating in the blood or lymph.
[GOC:add, ISBN:0781765196, PMID:16362985, PRO:ADD]
IgA1 heavy chain protein, secretory isoform (human)
An IgA1 heavy chain protein, secretory isoform that is encoded in the genome of human. This is a translation product of an IgA1 mRNA polyadenylated at a site 5' to the membrane exons, thus preventing their incorporation the final spliced mRNA.
[GOC:add, PRO:ADD, PRO:DAN]