SDS-Page
(Figure. SDS-PAGE)
Leukemia Inhibitory Factor Active Protein | LIF active protein
Active Leukemia Inhibitory Factor (LIF)
PBS, pH7.4, containing 0.01% SKL, 1mM DTT, 5% Trehalose and Proclin300.
Stability: The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37 degree C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.
SDS-Page
(Figure. SDS-PAGE)
SDS-Page
(Figure. SDS-PAGE)
Western Blot (WB)
(Figure. Western Blot)
Western Blot (WB)
(Figure. Western Blot)
Biological Activity Testing
(Leukemia inhibitory factor (LIF), is an interleukin 6 class cytokine that affects cell growth by inhibiting differentiation. LIF as a cytokine also has another fuction including: the growth promotion and cell differentiation of different types of target cells, influence on bone metabolism, cachexia, neural development, embryogenesis and inflammation. Besides, Colony Stimulating Factor Receptor, Granulocyte (GCSFR) has been identified as an interactor of LIF, thus a binding ELISA assay was conducted to detect the interaction of recombinant mouse LIF and recombinant mouse GCSFR. Briefly, LIF were diluted serially in PBS, with 0.01% BSA (pH 7.4). Duplicate samples of 100L were then transferred to GCSFR-coated microtiter wells and incubated for 2h at 37. Wells were washed with PBST and incubated for 1h with anti-LIF pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody, wells were aspirated and washed 3 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37. Finally, add 50uL stop solution to the wells and read at 450nm immediately. The binding activity of LIF and GCSFR was shown in Figure 1, and this effect was in a dose dependent manner.Figure. The binding activity of LIF with GCSFR.)
Biological Activity Testing
(Leukemia inhibitory factor (LIF), is an interleukin 6 class cytokine that affects cell growth by inhibiting differentiation. LIF as a cytokine also has another fuction including: the growth promotion and cell differentiation of different types of target cells, influence on bone metabolism, cachexia, neural development, embryogenesis and inflammation. Besides, Colony Stimulating Factor Receptor, Granulocyte (GCSFR) has been identified as an interactor of LIF, thus a binding ELISA assay was conducted to detect the interaction of recombinant mouse LIF and recombinant mouse GCSFR. Briefly, LIF were diluted serially in PBS, with 0.01% BSA (pH 7.4). Duplicate samples of 100L were then transferred to GCSFR-coated microtiter wells and incubated for 2h at 37. Wells were washed with PBST and incubated for 1h with anti-LIF pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody, wells were aspirated and washed 3 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37. Finally, add 50uL stop solution to the wells and read at 450nm immediately. The binding activity of LIF and GCSFR was shown in Figure 1, and this effect was in a dose dependent manner.Figure. The binding activity of LIF with GCSFR.)
NCBI and Uniprot Product Information
Accurate Molecular Mass: 21kDa
Uniprot Description
LIF: LIF has the capacity to induce terminal differentiation in leukemic cells. Its activities include the induction of hematopoietic differentiation in normal and myeloid leukemia cells, the induction of neuronal cell differentiation, and the stimulation of acute-phase protein synthesis in hepatocytes. Belongs to the LIF/OSM family.
Protein type: Secreted; Secreted, signal peptide
Cellular Component: extracellular space; cytoplasm; extracellular region
Molecular Function: growth factor activity; leukemia inhibitory factor receptor binding; cytokine activity; receptor binding
Biological Process: transcription from RNA polymerase II promoter; maternal process involved in pregnancy; negative regulation of hormone secretion; leukemia inhibitory factor signaling pathway; tyrosine phosphorylation of Stat3 protein; decidualization; positive regulation of adrenocorticotropic hormone secretion; positive regulation of tyrosine phosphorylation of Stat3 protein; negative regulation of cell proliferation; positive regulation of MAPKKK cascade; astrocyte differentiation; regulation of cell differentiation; negative regulation of meiosis; positive regulation of cell proliferation; positive regulation of macrophage differentiation; muscle morphogenesis; positive regulation of astrocyte differentiation; positive regulation of peptidyl-serine phosphorylation of STAT protein; organ regeneration; stem cell maintenance; stem cell differentiation; positive regulation of peptidyl-serine phosphorylation; positive regulation of tyrosine phosphorylation of Stat1 protein; negative regulation of angiogenesis; positive regulation of peptidyl-tyrosine phosphorylation; retina development in camera-type eye; neuron development; positive regulation of transcription from RNA polymerase II promoter; immune response; blood vessel remodeling; alveolus development; embryo implantation; lung development
Research Articles on LIF
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Product Notes
The LIF lif (Catalog #AAA2122277) is an Active Protein and is intended for research purposes only. The product is available for immediate purchase. The immunogen sequence is Pro25~Phe203. AAA Biotech's Leukemia Inhibitory Factor can be used in a range of immunoassay formats including, but not limited to, Cell Culture, Activity Assays. Researchers should empirically determine the suitability of the LIF lif for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "Leukemia Inhibitory Factor, Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.Item has been added to Shopping Cart
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