The Ovine IL-4 yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Ovine IL-4 applications are for cell culture, ELISA standard, and Western Blot Control. Ovine IL-4 yeast-derived recombinant protein can be purchased in multiple sizes. Ovine IL-4 Specifications: (Molecular Weight: 12.6 kDa) (Amino Acid Sequence: HKCDITLEEI IKTLNILTSR KNSCMELPVA DVFAAPKNAT EKETFCRAGI ELRRIYRSHM CLNKFLGGLD RNLSSLASKT CSVNEAKTST STLRDLLERL KTIMKEKYSK C (111)) (Gene ID: 443327). For research use only. Made in the USA