kappa Immunoglobulin Definition

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Kappa Immunoglobulin: One of the light chains of the immunoglobulins with a molecular weight of approximately 22 kD. They constitute about 60% of all light chains and can be recognized serologically as well as by their specific amino acid sequence.

Synonym: kappa immunoglobulin subgroup vk 21, kappa immunoglobulin subgroup vk 12, kappa chain immunoglobulins.