Human κ light chains are antibody fragments that regulate immunological responses in cells. Increased expression of κ light chains has been linked to chronic lymphocytic leukemia . The variable fragment of the κ light chain gene has also been associated with vaccine-induced antibody response to the polysaccharide coat in Haemophilus influenzae type b . Anti-Human κ Light Chains (Bound and Free-Alkaline Phosphatase antibody is specific for human κ light chain when tested against human IgA, IgG, IgM, IgGλ, IgAλ, IgMλ, Bence Jones κ and λ myeloma proteins.
