Description：The purified total Mouse IgA can be used as a negative control for antibodies in Western blot, immunoprecipitation, and immunohistochemistry, etc.Purification：Purified by affinity chromatography.Form：Purified Mouse IgA in PBS, pH 7.3, 0.01% sodium azide. Purity：Greater than 95% as determined by reducing SDS-PAGE.Directions for Use：Please minimize freeze-thaw cycles.Storage/Stability：Store it at -20°C to -80°C for one year. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.