The Pab Rb x human Osteonectin (ON, Basement-membrane Protein 40, BM-40, Secreted Protein Acidic and Rich in Cysteine, SPARC) (FITC) antibody from United States Biological is a Rabbit Polyclonal antibody to SPARC. This antibody recognizes Homo Sapiens, and Human antigen. The Pab Rb x human Osteonectin (ON, Basement-membrane Protein 40, BM-40, Secreted Protein Acidic and Rich in Cysteine, SPARC) (FITC) antibody has been shown to work in the following applications: Western Blot.