United States Biological's Pab Rb x human PKNOX1 (PBX/Knotted 1 Homeobox 1, Homeobox Protein PKNOX1, Human Homeobox Containing Protein, Pbx Regulating Protein 1, PREP1) (APC) antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Western Blot.