Detects mouse LIF in direct ELISAs and Western blots. In direct ELISAs and Western blots (non-reducing conditions), less than 5% cross‑reactivity with recombinant human (rh) LIF is observed. In direct ELISAs, no cross‑reactivity with rhCNTF, recombinant mouse (rm) G-CSF, rmIL-6, and rmOSM is observed.
Polyclonal Goat IgG
E. coli-derived recombinant mouse LIF
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
<0.10 EU per 1 μg of the antibody by the LAL method.
Recombinant Mouse LIF
Measured by its ability to neutralize LIF-induced IL-6 secretion in the M1 mouse myeloid leukemia cell line. The Neutralization Dose (ND50) is typically 10-60 ng/mL in the presence of 3 ng/mL Recombinant Mouse LIF.
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
IL-6 Secretion Induced by LIF and Neutralization by Mouse LIF Antibody. Recombinant Mouse LIF (Catalog # 8878-LF) stimulates IL-6 secretion in the M1 mouse myeloid leukemia cell line in a dose-dependent manner (orange line) as measured by the Mouse IL-6 Quantikine ELISA (Catalog # M6000B). IL-6 secretion elicited by 3 ng/mL Recombinant Mouse LIF is neutralized (green line) by increasing concentrations of Goat Anti-Mouse LIF Antigen Affinity-purified Polyclonal Antibody (Catalog # AF449). The ND50 is typically 10-60 ng/mL.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Leukemia inhibitory factor (LIF) was initially identified as a factor that inhibited the proliferation and induced the differentiation to macrophages of the murine myeloid leukemic cell line M1. Subsequent to its purification and molecular cloning, LIF was recognized to be a pleiotropic factor with multiple effects on both hematopoietic and non-hematopoietic cells. LIF has overlapping biological functions with OSM, IL-6, IL-11 and CNTF. All these cytokines utilize gp130 as a component in their signal transducing receptor complexes. Mouse LIF cDNA encodes a 203 amino acid residue polypeptide with a 23 amino acid signal peptide that is cleaved to yield a 180 amino acid mature mouse LIF. Native human and mouse LIF are highly glycosylated monomeric proteins. Both human and murine LIF protein sequences have multiple potential N- and O-linked glycosylation sites and six conserved cysteine residues that are involved in three intramolecular disulfide bridges.
R&D Systems personnel manually curate a database that contains references using R&D Systems products.
The data collected includes not only links to publications in PubMed,
but also provides information about sample types, species, and experimental conditions.
The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.