Source:http://linkedlifedata.com/resource/umls/id/C2754992
GO: A polymeric IgA immunoglobulin complex that is complexed with one chain of secretory component (SC). Polymeric IgA is present in mucosal areas, having been transported via a transcytosis mechanism in mucosal epithelial cells relying on the polymeric Ig receptor, a portion of which then remains bound to the polymeric IgA as secretory component. [GOC:add, ISBN:0781765196, PMID:16362985]