This Protein A purified antibody is suitable for ELISA and western blotting of human NAG-1 protein. This reagent is particularly useful to differentiate polymorphic forms of NAG-1 protein present in human serum samples. This antibody is useful in dual antibody immunometric assays (EIA). Expect bands in Western blots of approximately 14 and 28 kDa in size corresponding to NAG-1 monomer and dimer, respectively, using the appropriate cell lysate or extract. Specific conditions for reactivity should be optimized by the end user.