The Bovine TGF-alpha yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Bovine TGF-alpha applications are for cell culture, ELISA standard, and Western Blot Control. Bovine TGF-alpha yeast-derived recombinant protein can be purchased in multiple sizes. Bovine TGF-alpha Specifications: (Molecular Weight: 5.5 kDa) (Amino Acid Sequence: VVSHFNDCPD SHSQFCFHGT CRFLVQEEKP ACVCHSGYVG ARCEHADLLA (50)) (Gene ID: 540388). For research use only. Made in the USA