The Feline IL-4 Biotinylated yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Feline IL-4 Biotinylated applications are for cell culture. Feline IL-4 Biotinylated yeast-derived recombinant protein can be purchased in multiple sizes. Feline IL-4 Biotinylated Specifications: (Molecular Weight: 12.6 kDa) (Amino Acid Sequence: QNFNNTLKEI IKTLNILTAR NDSCMELTVM DVLAAPKNTS DKEIFCRATT VLRQIYTHHN CSTKFLKGLD RNLSSMANRT CSVNEVKKCT LKDFLERLKA IMQKKYSKH (109)) (Gene ID: 751514). For research use only. Made in the USA