An immunoglobulin complex that is secreted into extracellular space and found in mucosal areas or other tissues or circulating in the blood or lymph. In its canonical form, a circulating immunoglobulin complex is composed of two identical heavy chains and two identical light chains, held together by disulfide bonds. Some forms of are polymers of the basic structure and contain additional components such as J-chain and the secretory component. (Gene Ontology, GO_0042571)
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5 proteins localized to the immunoglobulin complex, circulating cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.