The Bee MCDP 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 MCDP applications are for cell culture, ELISA standard, and Western Blot Control. Bee MCDP yeast-derived recombinant protein can be purchased in multiple sizes. Bee MCDP Specifications: (Molecular Weight: 2.6 kDa) (Amino Acid Sequence: IKCNCKRHVI KPHICRKICG KNG (23)) (Gene ID: 406134). For research use only. Made in the USA