The Bee Abaecin yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Bee Abaecin applications are for cell culture, ELISA standard, and Western Blot Control. Bee Abaecin Specifications: (Molecular Weight: 3.9 kDa) (Amino Acid Sequence: YVPLPNVPQP GRRPFPTFPG QGPFNPKIKW PQGY). For research use only. Made in the USA