Anti-Human Kappa (κ) Light Chain Antibody

Goat-derived polyclonal immunoglobulins from Antibodies.com target the constant region of human kappa light chains, the smaller polypeptide component paired with heavy chains in intact antibody molecules. This unconjugated reagent at 1 mg is affinity purified to minimize nonspecific interactions during immunolabeling, supporting clear signal in assays such as ELISA, Western blot, immunohistochemistry, and immunofluorescence.

Researchers employ anti-kappa reagents alongside anti-lambda counterparts to evaluate light chain restriction in B-cell populations, characterize monoclonal gammopathies, and assess immunoglobulin expression in lymphoid tissues. The polyclonal format recognizes multiple epitopes across the kappa chain, providing robust detection even when individual epitopes are partially masked by somatic hypermutation or structural variation.

Supplied as a liquid affinity-purified preparation, the antibody pairs readily with user-selected secondary reporters, enzymes, or fluorophores for diverse experimental designs. Each lot is validated for the listed applications, and the unconjugated presentation allows laboratories to configure detection chemistry according to their platform, whether chromogenic, fluorescent, or chemiluminescent readout is required.