Mouse B7-1/CD80 Recombinant Protein expressed in Baculovirus with His-tag. Sequence domain: 37-246aa. Application (s) : SDS-PAGE. Endotoxin: < 1 EU per 1ug of protein (determined by LAL method) . Bioactivity: Measured by its binding ability in a functional ELISA with Mouse CTLA4 (CAT# PROTP09793-1) .