Background: Immunoglobulins are a group of proteins that have important role in defense against microorganisms. Immunoglobulins consist of heavy and light chains. In human, immunoglobulin light chain comprises of two isotypes: Kappa (K) and lambda (λ) based on amino acid differences in carboxylic end of their constant region. Marked changes in the K to λ ratio can happen in monocl...
