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Human CellExp™ LIF, mouse recombinant

Affects cell growth and development
Catalog #: 7268
$295.00

Product Details

Cat # +Size 7268-10
Size 10 μg
Alternate Name LIF, CDF, DIA, HILDA, MLPLI
Gene Symbol LIF
Gene ID 16878
Accession # P09056
Source HEK 293 cells
Appearance Lyophilized powder
Physical Form Description Sterile filtered through a 0.22 micron filter. Lyophilized from 1 x PBS, pH 7.4. Generally 5-8% Mannitol or trehalose is added as a protectant before lyophilization.
Molecular Weight Calculated MW of 20.7 kDa with no tags. The predicted N-terminus is Ser 24. DTT-reduced Protein migrates as 33-45 kDa due to different glycosylation.
Purity by SDS-PAGE ≥92%
Endotoxin Level < 0.1 ng/μg of protein (<1EU/μg) by LAL method
Biological Activity Measured by its ability to inhibit the proliferation of M1 mouse myeloid leukemia cells. The ED50 for this effect is typically 0.3-1.2 ng/ml
Reconstitution Instructions Centrifuge the vial prior to opening. Reconstitute in sterile deionized water to a concentration of 50 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.
Handling Centrifuge the vial prior to opening.
Storage Conditions -20°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not to be used in humans

Details

Leukemia inhibitory factor, or LIF, an interleukin 6 class cytokine, is a protein in cells that affects cell growth and development. Leukemia Inhibitory Factor has several functions such as cholinergic neuron differentiation, control of stem cell pluripotency, bone & fat metabolism, mitogenesis of factor dependent cell lines & promotion of megakaryocyte production in vivo. Removal of LIF pushes stem cells toward differentiation, but they retain their proliferative potential or pluripotency. Therefore LIF is used in mouse embryonic stem cell culture. It is necessary to maintain the stem cells in an undifferentiated state, however genetic manipulation of embryonic stem cells allows for LIF independent growth, notably overexpression of the gene Nanog. LIF is not required for culture of human embryonic stem cells.


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