IgA immunoglobulin complex, circulating
A protein complex composed of two identical immunoglobulin heavy chains of an IgA isotype and two identical immunoglobulin light chains, held together by disulfide bonds, sometimes complexed with J chain or J chain and secretory component, and present in the extracellular space, in mucosal areas or other tissues, or circulating in the blood or lymph.
GO:0042571
immunoglobulin complex, circulating
is_a
GO:0071745
IgA immunoglobulin complex
is_a
IgA antibody
exact
IgA1 antibody
narrow
IgA2 antibody
narrow