Application Note: Leukemia Inhibitory Factor Recombinant Protein has been tested by biological activity and is suitable as a control for polyclonal or monoclonal anti-Leukemia Inhibitory Factor in immunological assays.
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Other Performance Data: Endotoxin Level: Measured by kinetic LAL analysis and is typically ≤ 1 EU/μg protein. Biologic Activity: The activity is determined by its ability to induce proliferation of TF-1 cells and is typically less than 0.07 ng/mL.
Physical State: Lyophilized
Purity and Specificity: Leukemia Inhibitory Factor purity was determined to be greater than 98% as determined by reducing and non-reducing SDS-pAGE.
Background: Human Leukemia Inhibitory Factor (LIF) is member of the IL-6 family and is made by a variety of tissues. Human LIF signals through gp130 to activate STAT3 in human ESCs . In mouse ESCs, LIF promotes self-renewal and pluripotency, but in human cells there is no indication that LIF has the same function. Instead, FGF-basic (FGF-2) and Activin A are used to promote self-renewal and pluripotent potential. Recombinant human LIF is a non-glycosylated protein, containing 181 amino acids, with a molecular weight of 19.9 kDa.
Low Endotoxin: Yes
Other: User Optimized