Recombinant LIF，Mouse

Specifications

Product Data
Species	Mouse
Expression Host	E. coli
Expression cDNA Clone or AA Sequence	Protein Sequence (showhide) SPLPITPVNATCAIRHPCHGNLMNQIKNQLAQLNGSANALFISYYTAQGEPFPNNVEKLCAPNMTDFPSFHGNGTEKTKLVELYRMVAYLSASLTNITRDQKVLNPTAVSLQVKLNATIDVMRGLLSNVLCRLCNKYRVGHVDVPPVPDHSDKEAFQRKKLGCQLLGTYKQVISVVVQAF with polyhistidine tag at the N-terminus.
Tag	His Tag (N-term)
Predicted MW	The protein has a calculated MW of 20.68 kDa. The protein migrates as 17-25 kDa under reducing condition (SDS-PAGE analysis).
Purity	>95% as determined by SDS-PAGE.
Buffer	The protein was lyophilized from a 0.2 µm filtered solution containing 1X PBS, pH 7.4.
Applications	Cell culture
Storage	Lyophilized protein should be stored at -20°C for 1 year. Upon reconstitution, store at 2°C to 8°C for up to 1 week. Further dilute in a buffer containing a carrier protein or stabilizer (e.g. 0.1% BSA, 10%FBS, 5%HSA or 5% trehalose solution), protein aliquots should be stored at -20°C or -80°C for 3-6 months. Avoid repeated freeze/thaw cycles.
Bioactivity	Measure by its ability to induce IL-6 secretion in M1 cells. The ED₅₀ for this effect is <0.5 ng/mL. The specific activity of recombinant mouse LIF is > 2 x 10⁶ IU/mg.
Endotoxin	<0.1 EU per 1 μg of the protein by the LAL method.
Reference Data
UniProt ID	P09056
Synonyms	leukemia inhibitory factor, Differentiation-stimulating factor, D factor, Melanoma-derived LPL inhibitor (MLPLI), Interleukin 6 family cytokine
Summary	Leukemia inhibitory factor (LIF) is a pleiotropic glycoprotein, belonging to the IL-6 receptor family. Mouse LIF shares 79% sequence homology with human LIF. LIF is a 19.7 kDa protein containing 202 amino acid which high expression in human liver, bone, uterus, kidney and the central nervous system. LIF is a inducer of differentiation in M1 leukaemia cells, osteoblasts and glia. Not only stimulates proliferation of DA1 cells inhibit proliferation of corticotrophs and promote cell survival in some cell types but also induces apoptosis in others.

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