The Pab Rb x human SPI1 (Transcription Factor PU.1, 31kD-transforming Protein) (MaxLight 490) antibody from United States Biological is a Rabbit Polyclonal antibody to SPI1. This antibody recognizes Homo Sapiens, and Human antigen. The Pab Rb x human SPI1 (Transcription Factor PU.1, 31kD-transforming Protein) (MaxLight 490) antibody has been shown to work in the following applications: Western Blot.