Thermo Fisher Scientific Human LIF Recombinant Protein, PeproTech

Applications

Tested Dilution

Publications

Western Blot (WB)

Assay-dependent

-

ELISA (ELISA)

Assay-dependent

-

Functional Assay (Functional)

Assay-dependent

-

In vitro Assay (IV)

-

View 56 publications 56 publications

Miscellaneous PubMed (Misc)

-

View 7 publications 7 publications

Product Specifications

Species

Human

Published species

Bovine, Human, Mouse, Pig, 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

19.7 kDa

Class

Recombinant

Type

Protein

Purity

≥ 98% by SDS-PAGE gel and HPLC analyses.

Endotoxin concentration

<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

Unconjugated Unconjugated Unconjugated

Form

Lyophilized

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.