United States Biological's Pab Rb x human SPI1 (Transcription Factor PU.1, 31kD-transforming Protein) (FITC) antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Western Blot. The Pab Rb x human SPI1 (Transcription Factor PU.1, 31kD-transforming Protein) (FITC) antibody was generated using SPI1 as the antigen and it reacts with Homo Sapiens, and Human.