Recombinant Mouse LIF (Animal-Free)
Induced production of IL-6 from M1 cells by Mouse LIF. Cell proliferation was measured to calculate the ED50, which is as expected less than 1 ng/ml.
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PODS® Growth Factors
The product is currently not available as PODS®, please check back in the future.Animal-Free
This product is produced with no animal derived raw products. All processing and handling employs animal free equipment and animal free protocols.Description
Leukemia Inhibitory Factor (LIF) is a member of the interleukin-6 (IL-6) family that is made by a variety of adult and embryonic tissues. LIF signals through the glycoprotein 130 (gp130)/LIF receptor (LIFR) heterodimer to activate STAT3 and MAPK signaling. LIF functions during hematopoietic differentiation, neuronal cell differentiation, kidney development, and inflammatory processes. The application of mouse LIF to long-term culture systems promotes mouse embryonic stem cell (ESC) self-renewal and pluripotency, similar to the functional activity of FGF-2 in human ESC cell culture systems.Activity Assay
Mouse LIF (Animal-Free) is fully biologically active when compared to standard. The activity is determined by the induce production of IL-6 from M1 cells and it is typically less than 1 ng/ml. This corresponds to an expected specific activity of 1 x 106 units/mg.AA Sequence
MSPLPITPVN ATCAIRHPCH GNLMNQIKNQ LAQLNGSANA LFISYYTAQG EPFPNNVEKL CAPNMTDFPS FHGNGTEKTK LVELYRMVAY LSASLTNITR DQKVLNPTAV SLQVKLNATI DVMRGLLSNV LCRLCNKYRV GHVDVPPVPD HSDKEAFQRK KLGCQLLGTY KQVISVVVQA FAlternative Names
Leukocyte Inhibitory Factor, leukemia inhibitory factor, cholinergic differentiation factorProduct Details | |
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Length | 181 aa |
Molecular Weight | 19.8 kDa |
Structure | Monomer |
Source | E. coli |
Accession Number | P09056 |
Purity | ≥95% determined by reducing and non-reducing SDS-PAGE |
Endotoxin Level | ≤1.00 EU/μg as measured by kinetic LAL |
Formulation | Lyophilized from a sterile (0.2 micron) filtered aqueous solution containing 0.1% Trifluoroacetic Acid (TFA) |
Reconstitution | Centrifuge vial before opening. When reconstituting the product, gently pipet and wash down the sides of the vial to ensure full recovery of the protein into solution. It is recommended to reconstitute the lyophilized product with sterile 10 mM acetic acid at 0.1 mg/ml, which can be further diluted into other aqueous solutions. |
Stability and Storage |
12 months from date of receipt when stored at -20°C to -80°C as supplied. 1 month when stored at 4°C after reconstituting as directed. 3 months when stored at -20°C to -80°C after reconstituting as directed. |