United States Biological's Pab Rb x human Smad3 (Mothers against decapentaplegic homolog 3, SMAD family member 3) antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Western Blot. The Pab Rb x human Smad3 (Mothers against decapentaplegic homolog 3, SMAD family member 3) antibody was generated using SMAD3 as the antigen and it reacts with Homo Sapiens, and Human.