The Human 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. Human Leukemia Inhibitory Factor (LIF) applications are for cell culture, ELISA standard, and Western Blot Control. Human Leukemia Inhibitory Factor (LIF) yeast-derived recombinant protein can be purchased in multiple sizes. Human Leukemia Inhibitory Factor (LIF) Specifications: (Molecular Weight: 19.7 kDa) (Amino Acid Sequence: SPLPITPVNA TCAIRHPCHN NLMNQIRSQL AQLNGSANAL FILYYTAQGE PFPNNLDKLC GPNVTDFPPF HANGTEKAKL VELYRIVVYL GTSLGNITRD QKILNPSALS LHSKLNATAD ILRGLLSNVL CRLCSKYHVG HVDVTYGPDT SGKDVFQKKK LGCQLLGKYK QIIAVLAQAF (180)) (Gene ID: 3976). For research use only. Made in the USA