Recombinant Human LIF stimulates proliferation in the TF‑1 human erythroleukemic cell line in a dose-dependent manner (orange line). Proliferation elicited by 0.3 ng/mL Recombinant Human LIF is neutralized (green ...read more
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.
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Reconstitute at 0.2 mg/mL in sterile PBS.
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for LIFR alpha Antibody [Unconjugated]
leukemia inhibitory factor receptor alpha
leukemia inhibitory factor receptor
LIF R alpha
LIF R beta
The activities of the pleiotropic cytokine LIF are mediated through a high-affinity heterodimeric receptor complex consisting of two membrane glycoproteins: an alpha subunit (LIF R alpha , also known as LIF R beta and CD118) that binds LIF with low affinity and the 130 kDa (gp130) subunit that does not bind LIF by itself, but is required for high-affinity binding of LIF by the complex. The gp130 subunit was first described as the signal transducing subunit of the high-affinity IL-6 receptor complex. Besides LIF, the high-affinity heterodimeric LIF receptor complex has been shown to mediate the activities of oncostatin M (OSM), cardiotrophin-1 and ciliary neurotrophic factor (CNTF).
Human LIF R alpha cDNA encodes a 1097 amino acid (aa) residue precursor type I membrane protein with a 44 aa residue signal peptide, a 789 aa residue extracellular domain, a 26 aa residue transmembrane domain, and a 238 aa residue cytoplasmic domain. LIF R alpha is a member of the cytokine receptor family and has extensive homology to gp130. The extracellular domain of LIF R alpha has two cytokine receptor domains and three fibronectin type III repeats. In mouse, mRNAs encoding a soluble LIF R alpha and lacking transmembrane and intracellular domains, have been isolated. Soluble LIF R alpha has been shown to bind LIF and has LIF antagonistic activity.
Bazan, J.F. (1990) Proc. Natl. Acad. Sci. USA 87:6934.
Gearing, D.P. (1994) Guidebook to Cytokines and Their Receptors, Academic Press, p130.
Pennica D. et al. (1995) J. Biol. Chem. 270:10915.
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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