United States Biological's Pab Rb x human UBE4B (Ubiquitin Conjugation Factor E4 B, E4, UFD2, HDNB1, UBOX3, UFD2A) antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Western Blot. The Pab Rb x human UBE4B (Ubiquitin Conjugation Factor E4 B, E4, UFD2, HDNB1, UBOX3, UFD2A) antibody was generated using UBE4B as the antigen and it reacts with Homo Sapiens, and Human.