Production
The production of free immunoglobulin light chains in normal individuals is approximately 500 mg/day from bone marrow and lymph node cells. There is approximately 40% excess immunoglobulin light-chain production over immunoglobulin heavy-chain synthesis. Possibly this is simply to allow proper conformation of the intact immunoglobulin molecules, but an immunological role for the free light chains has also been proposed. There are approximately twice as many kappa-producing plasma cells as lambda plasma cells. Kappa free-light chains are normally monomeric, while lambda free-light chains tend to be dimeric, joined by disulphide bonds. Polymeric forms of both types of free light chain can also occur.
Read more about this topic: Serum Free Light Chain Measurement
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