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Gibco
Human LIF, Animal-Free Recombinant Protein, PeproTech®
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Product Details
AF-300-05-500UG
Applications
Tested Dilution
Publications
Product Specifications
Species
Human
Published species
Human,
Rat
Expression System
E. coli
Amino acid sequence
SPLPITPVNA TCAIRHPCHN NLMNQIRSQL AQLNGSANAL FILYYTAQGE PFPNNLDKLC GPNVTDFPPF HANGTEKAKL VELYRIVVYL GTSLGNITRD QKILNPSALS LHSKLNATAD ILRGLLSNVL CRLCSKYHVG HVDVTYGPDT SGKDVFQKKK LGCQLLGKYK QIIAVLAQAF
Molecular weight
19.6 kDa
Class
Recombinant
Type
Protein
Purity
≥ 98% by SDS-PAGE gel and HPLC analyses.
Endotoxin concentration
<0.1 EU/µg
Activity
Determined by its ability to stimulate the proliferation of human TF-1 cells. The expected ED50 is ≤ 0.1 ng/ml, corresponding to a specific activity of ≥ 1 x 10^7 units/mg.
Conjugate
Form
Lyophilized
Amount
500 µg
Purification
purified
Contains
no preservative
Storage conditions
-20°C
Shipping conditions
Ambient
Product Specific Information
Recombinant Human LIF is a 19.7 kDa protein containing 180 amino acid residues, including three disulfide bonds.
This product is shipped at ambient temperature. For storage, handling and reconstitution information, please see the lot-specific Certificate of Analysis
Target Information
Leukemia inhibitory factor (LIF) is a 20 kDa protein that belongs to the IL-6 receptor family. It binds to a heterodimeric membrane receptor made up of a LIF-specific subunit, gp190 or LIFR, and the subunit gp130, which is shared with the other members of the IL-6 family. LIF expression has been observed in various tissues including thymus, lung, and neuronal tissue. LIF can be up-regulated by pro-inflammatory cytokines such as TNFα and IL-17, and elevated levels of LIF have been found in cases of rheumatoid arthritis, neural injury, systemic inflammation, and tuberculosis. LIF displays diverse biological effects, but is best known for its ability to inhibit the differentiation of embryonic stem cells in mice and contribute to stem cell self-renewal.Human and mouse LIF share 79% sequence homology and exhibit cross-species activity. However, LIF inhibition of stem cell differentiation appears to be mouse-specific.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Bioinformatics
Protein Aliases: cholinergic differentiation factor; D factor; differentiation inhibitory activity; differentiation-inducing factor; Differentiation-stimulating factor; hepatocyte-stimulating factor III; human interleukin in DA cells; Leukemia inhibitory factor; LIF; Melanoma-derived LPL inhibitor; MLPLI; unnamed protein product
Gene Aliases: CDF; DIA; HILDA; LIF; MLPLI
UniProt ID: (Human) P15018
Entrez Gene ID: (Human) 3976
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