LIF Protein (AA 24-203)

Catalog No. ABIN2018196

This Recombinant LIF protein is expressed in Escherichia coli (E. coli).

Quick Overview for LIF Protein (AA 24-203) (ABIN2018196)

Target: LIF (Leukemia Inhibitory Factor (LIF))

Protein Type: Recombinant

Biological Activity: Active

Origin: Mouse

Source: Escherichia coli (E. coli)

Purity: > 95 % by SDS-PAGE and HPLC analyses.

Product Details

Protein Characteristics: AA 24-203

Characteristics: ED50 < 0.01 ng/mL, measured by a cell differentiation assay using M1 cells, corresponding to a specific activity of > 1.0x 10^8 units/mg.

Endotoxin Level: < 0.2 EU/μg, determined by LAL method.

Application Details

Restrictions: For Research Use only

Handling

Format: Lyophilized

Reconstitution: Reconstituted in ddH2O at 100 μg/mL.

Buffer: Lyophilized after extensive dialysis against 50 mM Tris, 150 mM NaCl, pH 8.0.

Storage: -80 °C

Storage Comment: Lyophilized recombinant mouse Leukemia Inhibitory Factor (rmLIF) remains stable up to 6 months at -80 °C from date of receipt. Upon reconstitution, rmLIF should be stable up to 2 weeks at 4 °C or up to 3 months at -20 °C.

Expiry Date: 6 months

Target Details

Target: LIF (Leukemia Inhibitory Factor (LIF))

Background: Leukemia Inhibitory Factor (LIF) is a pleiotropic cytokine belonging to the long four-helix bundle cytokine superfamily. LIF shares tertiary structure with several other cytokines, including Interleukin-6 (IL-6), Oncostatin M, ciliary neurotropic factor, and cardiotrophin-1, and their functions in vivo are also redundant to some extent. LIF can bind to the common receptor of IL-6 subfamily, gp130, and then recruit its own receptor LIF Receptor to form a ternary complex. The basal expression of LIF in vivo is low, and its expression is induced by pro-inflammatory factors, including lipopolysaccharide, IL-1, and IL-17, and inhibited by anti-inflammatory agents, including IL-4 and IL-13. The functions of LIF include proliferation of primordial germ cells, regulation in blastocyst implantation and early pregnancy, and maintenance of pluripotent embryonic stem cells.Recombinant mouse Leukemia Inhibitory Factor (rmLIF) produced in E. coli is a single non-glycosylated polypeptide chain containing 180 amino acids. A fully biologically active molecule, rmLIF has a molecular mass of 19.9 kDa analyzed by reducing SDS-PAGE.
Synonyms: CDF, HILDA, D-FACTOR, Differentiation- stimulating factor, Melanoma-derived LPL inhibitor, MLPLI, Emfilermin, Leukemia inhibitory factor, LIF, DIA

Molecular Weight: 19.9 kDa, observed by reducing SDS-PAGE.

UniProt: P09056

Pathways: JAK-STAT Signaling, Positive Regulation of Peptide Hormone Secretion, Negative Regulation of Hormone Secretion, Stem Cell Maintenance, Growth Factor Binding