The Dolphin Leukemia Inhibitory Factor (LIF) yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Dolphin LIF applications are for cell culture, ELISA standard, and Western Blot Control. Dolphin LIF yeast-derived recombinant protein can be purchased in multiple sizes. Dolphin LIF Specifications: (Molecular Weight: 19.7 kDa) (Amino Acid Sequence: SPLPITPVNA TCATRHPCHS NLMNQIKNQL AQLNSSAKAL FILYYTAQGE PFPNNLDKLC SPNVTDFPPF HANGTERARL VELYRIIAYL GASLGNITRD QKVLNPSAHS LHSKLNATAD VMRGLLSNVL CRLCSKYHVA HVDVAYGPDT SGKDVFQKKK LGCQLLGKYK QVIAVVAQAF (180)) (Gene ID: 101318472). For research use only. Made in the USA