Detects human IL-7 in Western blots. In ELISAs, does not cross-react with bovine FGF acidic, recombinant human (rh) G-CSF, rhGM-CSF, rhIL-1 alpha, rhIL-1 beta, rhIL-2, rhIL-3, rhIL-4, rhIL-6, recombinant mouse IL-7, rhIL-8, porcine PDGF, rhTNF-alpha, rhTNF-beta, human TGF-beta 1, or porcine TGF-beta 1.
Monoclonal Mouse IgG1 Clone # 7417
Protein A or G purified from ascites
E. coli-derived recombinant human IL-7 Accession # P13232
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.
Human IL‑7 Biotinylated Antibody (Catalog #
Recombinant Human IL-7 Protein (Catalog #
Measured by its ability to neutralize IL‑7-induced proliferation in PHA-activated human peripheral blood mononuclear cells (PBMC). The Neutralization Dose (ND50) is typically 0.4-0.8 µg/mL in the presence of 2.5 ng/mL Recombinant Human IL‑7.
Please Note: Optimal dilutions should be determined by each laboratory for each application.
are available in the Technical Information section on our website.
Cell Proliferation Induced by IL‑7 and Neutralization by Human IL‑7 Antibody.
Recombinant Human IL‑7 (Catalog # 207-IL) stimulates proliferation in PHA-activated human peripheral blood mononuclear cells (PBMC) in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IL‑7 (2.5 ng/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Human IL‑7 Monoclonal Antibody (Catalog # MAB207). The ND50 is typically 0.4-0.8 µg/mL.
Preparation and Storage
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
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.
IL-7, previously known as pre-B cell growth factor and lymphopoietin-1, was originally purified on the basis of its ability to promote the proliferation of precursor B cells. It has now been shown that IL-7 can also stimulate the proliferation of thymocytes, T cell progenitors and mature CD4+ and CD8+ T cells. IL-7 can induce the formation of lymphokine-activated killer (LAK) cells as well as the development of cytotoxic T lymphocytes (CTL). IL-7 was also shown to induce the V(D)J rearrangement of the T cell receptor beta gene in mouse fetal thymocytes. Among myeloid lineage cells, IL-7 can up-regulate the production of pro-inflammatory cytokines and stimulate the tumoricidal activity of monocytes/macrophages. IL-7 is expressed by adherent stromal cells from various tissues.
Human IL-7 cDNA encodes a precursor protein of 177 amino residues containing a 25 amino acid residue signal peptide. Mouse IL-7 has approximately 65% amino acid sequence identity with human IL-7 and both proteins exhibit cross-species activity.
IL-7 bioactivites are mediated by the binding of IL-7 to functional high-affinity receptor complexes. The ligand binding subunit (IL-7 R) of the IL-7 receptor complex has been cloned from human and mouse sources. In addition to the membrane-anchored form of the IL-7 receptor, a human cDNA clone that encodes a soluble form of the IL-7 R has also been isolated. The gamma chain of the IL-2 receptor complex has been shown to be an essential component for IL-7 signal transduction. Both IL-7 R and IL-2 R gamma are members of the hematopoietin receptor superfamily. Cells known to express IL-7 receptors include pre-B cells, T cells, and bone marrow cells.
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