Description
Alternate Names: Leukocyte Inhibitory Factor Accession Number: P09056
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. Mouse LIF promotes mouse embryonic stem (ES) cell self-renewal and pluripotency in long-term cell culture systems, similar to the functional activity of FGF-basic in human ES cell culture systems.
Source: Genetically modified E.coli.
Predicted MW: Monomer, 20 kDa (181 aa)
AA Sequence: MSPLPITPVN ATCAIRHPCH GNLMNQIKNQ LAQLNGSANA LFISYYTAQG EPFPNNVEKL CAPNMTDFPS FHGNGTEKTK LVELYRMVAY LSASLTNITR DQKVLNPTAV SLQVKLNATI DVMRGLLSNV LCRLCNKYRV GHVDVPPVPD HSDKEAFQRK KLGCQLLGTY KQVISVVVQA F
Formulation: Lyophilized from a sterile (0.2 micron) filtered aqueous solution containing 0.1% Trifluoroacetic Acid (TFA)
Product Specifications*
*Lot-specific values for the following specifications are supplied with each product on its corresponding COA. The values provided here are minimum expected values to pass internal requirements.
Specification |
Method of Determination |
Acceptance Criteria |
Purity |
Reducing and Non-Reducing SDS PAGE |
≥95% |
Endotoxin |
Kinetic LAL |
≤1 EUs/µg |
Biological Activity |
IL-6 production by M1 cells |
≤1 ng/mL |
Preparation and Storage
Country of Origin: USA Shipping: Room temperature
Product Reconstitution: Sterile 10 mM acetic acid at 0.1 mg/mL
Instructions: Centrifuge vial before opening. Suspend the product by gently pipetting the above recommended solution down the sides of the vial. DO NOT VORTEX. Allow several minutes for complete reconstitution. For prolonged storage, dilute to working aliquots in a 0.1% BSA solution, store at -80°C and avoid repeat freeze thaws.
Expiration Date
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.
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