Western blot of GDP-L-fucose synthase Antibody at 2 ug/ml + EC109 whole cell lysate at 20 ug/ml. Secondary: Goat polyclonal to Rabbit IgG at 1:15000 dilution. Predicted band size:35 kDa. Observed band size:35 kDa. Additional bands at:27 kDa. We are unsure as to the identity of this extra band.  This image was taken for the unconjugated form of this product. Other forms have not been tested.