The Equine EGF yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Equine EGF applications are for cell culture, ELISA standard, and Western Blot Control. Equine EGF yeast-derived recombinant protein can be purchased in multiple sizes. Equine EGF Specifications: (Molecular Weight: 5.4 kDa) (Amino Acid Sequence: NSYQECSQSY DGYCLHGGKC VYLVQVDTHA CNCVVGYVGE RCQHQDLR (48)) (Gene ID: 106782874). For research use only. Made in the USA