MEK1 [pS298] PAb; Unconjugated Polyclonal antibody specific to Human, Mouse, Rat MEK1 [pS298]. This antibody is validated for use in Western Blot. Anti-MEK1 [pS298] recognizes the expressed product of the MAP2K1 gene. Catalog number 44460G is same antibody as former catalog number 44460. 44460G contains 50% glycerol, which improves the stability and longevity of this antibody.