Name : LIF, Human

Product Concentration :

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.

Biological Activity :
LIF, Human (Cat. No. Z02681) stimulates cell proliferation of R&D TF-1 cells. The ED50 for this effect is less than 0.2ng/mL. 2 μg of LIF, Human (Cat. No. Z02681) was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie Blue staining LIF, Human 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. .hide { display: none!important; } .product_table_cart_div{ width: 100%; } .product_table_cart_div .unit{ display: block; font-weight: bold; min-width: 120px; text-align: left; width: 100px; } .form-control{ width: 45px; height: 30px; line-height: 30px; display: inline; padding: 0px 0px 0px 5px; } .product_table_cart_div .size-box{ padding: 4px 5px; border: 1px solid #cccccc; text-align: center; margin-right: 10px; } .product_table_cart_div span{ color: black !important; } .product_table_cart_div .price{ font-weight: 600; font-style: normal; color: #1D73DD; font-size: 30px; text-align: left; color: #F41D27 !important; } .product_table_cart_div .price-td{ padding-bottom:50px !important; } .btn-add-to-cart .button-face{ height: 40px; font-size: 16px; } .size-list div{ display: inline-block; } .ask-us{ color: #1D73DD; margin: 0 10px; } .btn-add-to-cart{ width: 180px; }

expression system :
E. coli

Tag :
LIF (Ser23-Phe202)Accession # P15018

Protein Accession No. :
P15018

Synonyms :
D factor; CDF; HILDA; D-FACTOR; Differentiation- stimulating factor; Melanoma-derived LPL inhibitor; MLPLI; Emfilermin; Leukemia inhibitory factor; DIA

Molecular Weight :
~19.7 kDa, on SDS-PAGE under reducing conditions.

Purity :
> 95% as analyzed by SDS-PAGE

Product Concentration :
Lyophilized after extensive dialysis against PBS.

Storage and Stability :
Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.

MedChemExpress (MCE) recombinant proteins include: cytokines, enzymes, growth factors, hormones, receptors, transcription factors, antibody fragments, etc. They are often essential for supporting cell growth, stimulating cell signaling pathways, triggering or inhibiting cell differentiation; and are useful tools for elucidating protein structure and function, understanding disease onset and progression, and validating pharmaceutical targets. At MedChemExpress (MCE), we strive to provide products with only the highest quality. Protein identity, purity and biological activity are assured by our robust quality control and assurance procedures.
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