特異性：Recognizes endogenous levels of human SEK1/MKK4 only when phosphorylated at serine 257 and threonine 261. Does not crossreact with the corresponding phosphorylated residues of MEK1, MEK2 or MKK3. Species Crossreactivity
純度：Affinity Purified Purified by Protein A and peptide affinity chromatography.
形状：Supplied as a liquid in 10mM sodium HEPES, pH 7.5, 150mM sodium chloride, 0.1mg/ml BSA, 50% glycerol
