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Description

Light chains covalently bound to a pair of heavy chains to form an antibody molecule. Immunoglobulin light chains occur in two types, kappa or lambda. Light chain's mass is about 25,000 Daltons per mole. Each light chain consists of about 250 amino-acids long. These are usually designated by the Greek letters kappa and lambda. The ratio of kappa to lambda found in the immunoglobulin population varies by species.