Synthesis
Kappa light-chain molecules are constructed from approximately 40 functional Vκ gene segments (chromosome 2), five Jκ gene segments and a single Cκ gene. Lambda molecules (chromosome 22) are constructed from about 30 Vλ gene segments and four pairs of functional Jλ gene segments and a Cλ gene.
Light chains are incorporated into immunoglobulin molecules during B-cell development and are expressed initially on the surface of pre B-cells. Production of light chains occurs throughout the rest of B-cell development and in plasma cells, where secretion is highest.
Read more about this topic: Serum Free Light Chain Measurement
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