The Chicken and Turkey 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. Chicken and Turkey TGF-alpha applications are for cell culture, ELISA standard, and Western Blot Control. Chicken and Turkey TGF-alpha yeast-derived recombinant protein can be purchased in multiple sizes. Chicken and Turkey TGF-alpha Specifications: (Molecular Weight: 5.7 kDa) (Amino Acid Sequence: VRSHFNECPD SHRQFCFHGT CRFLVQEDKP ACVCHSGYVG TRCEHADLLA (50)) (Gene ID: 414743 (Chicken); 100542303 (Turkey)). For research use only. Made in the USA