A protein complex composed of two identical immunoglobulin heavy chains of the IgW isotype and two identical immunoglobulin light chains, held together by disulfide bonds. An IgW immunoglobulin complex may be embedded in the plasma membrane or present in the extracellular space, in mucosal areas or other tissues, or circulating in the blood or lymph.
Source:ISBN:0781765196,
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Comment
Note that an IgW immunoglobulin complex has the function of antigen binding if a suitable antigen is available. Note that IgW is found in fish.