Recombinant Murine Leukemia Inhibitory Factor
Product Specifications
Background
Leukemia inhibitory factor (LIF) is a member of Interleukin 6 family. This protein is mainly expressed in the trophectoderm of the developing embryo, with its receptor LIFR expressed throughout the inner cell mass. LIF has the capacity to induce terminal differentiation in leukemic cells. Its activities include the induction of hematopoietic differentiation in normal and myeloid leukemia cells, the induction of neuronal cell differentiation, and the stimulation of acute-phase protein synthesis in hepatocytes. LIF is used in mouse embryonic stem cell culture, because that removal of LIF pushes stem cells toward differentiation, but they retain their proliferative potential or pluripotency. It is also used in phase II clinical trial, which can assist embryo implantation in women who have failed to become pregnant despite assisted reproductive technologies (ART) . Mature mouse LIF shares 78 % a.a. sequence identity with Human LIF.
Product Name Alternative
Differentiation-stimulating Factor, D factor, Melanoma-derived LPL Inhibitor , MLPLI
Gene ID
16878
UniProt
P09056
Target
SPLPITPVNA TCAIRHPCHG NLMNQIKNQL AQLNGSANAL FISYYTAQGE PFPNNVEKLC APNMTDFPSF HGNGTEKTKL VELYRMVAYL SASLTNITRD QKVLNPTAVS LQVKLNATID VMRGLLSNVL CRLCNKYRVG HVDVPPVPDH SDKEAFQRKK LGCQLLGTYK QVISVVVQAF
Purification
> 98 % by SDS-PAGE and HPLC analyses.
Endotoxin
Less than 1 EU/ug of rMuLIF as determined by LAL method.
Bioactivity
8
Storage Conditions
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.- 12 months from date of receipt, -20 to -70 °C as supplied.- 1 month, 2 to 8 °C under sterile conditions after reconstitution.- 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculated Molecular Weight
Approximately 19.9 kDa, a single non-glycosylated polypeptide chain containing 180 amino acids.
Formulation
Lyophilized from a 0.2 μm filtered concentrated solution in 20 mM PB, pH 7.4, with 0.02 % TWEEN 20.
Host or Source
Escherichia coli
Curated Selection
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