Protein Synthesis Initiation Factor 4E, phosphorylated (Ser209) (eIF 4E, Eukaryotic Translation Initiation Factor)

May be stored at 4 °C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 °C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. 

Recogznies endogenous levels of human Protein Synthesis Initiation Factor 4E at ~25kD only when phosphorylated at Ser209. Species Crossreactivity: mouse, rat and monkey