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Human Flt-3 Ligand/FLT3L Antibody

Catalog #: AF-308-NA
2 Citations Datasheet / COA / SDS
Catalog # Availability Size / Price Qty
AF-308-NA
AF-308-SP

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Cell Proliferation Induced by Flt-3 Ligand/FLT3L and Neutralization by Human Flt-3 Ligand/FLT3L Antibody.
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Citations (2)
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Human Flt-3 Ligand/FLT3L Antibody Summary

Species Reactivity
Human
Specificity
Detects human Flt-3 Ligand/FLT3L in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant mouse Flt-3 is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human Flt-3 Ligand/FLT3L
Thr27-Pro185
Accession # AAA17999
Formulation
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.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Human Flt‑3 Ligand/FLT3L (Catalog # 308-FK)
Neutralization
Measured by its ability to neutralize Flt‑3 Ligand/FLT3L-induced proliferation in BaFlt3 mouse pro‑B cell line transfected with mouse Flt‑3. Hannum, C. et al. (1994) Nature 368:643. The Neutralization Dose (ND50) is typically 20-250 ng/mL in the presence of 5 ng/mL Recombinant Human Flt‑3 Ligand/FLT3L.

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.

Scientific Data

Neutralization Cell Proliferation Induced by Flt-3 Ligand/FLT3L and Neutralization by Human Flt-3 Ligand/FLT3L Antibody. View Larger

Cell Proliferation Induced by Flt-3 Ligand/FLT3L and Neutralization by Human Flt-3 Ligand/FLT3L Antibody. Recombinant Human Flt-3 Ligand/FLT3L (Catalog # 308-FK) stimulates proliferation in BaFlt3 mouse pro-B cell line transfected with mouse Flt-3 in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human Flt-3 Ligand/FLT3L (5 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human Flt-3 Ligand/FLT3L Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-308-NA). The ND50 is typically 20‑250 ng/mL.

Reconstitution Calculator

Reconstitution Calculator

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.

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
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Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
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.

Background: Flt-3 Ligand/FLT3L

Flt-3 Ligand, also known as FL, is an alpha -helical cytokine that promotes the differentiation of multiple hematopoietic cell lineages (1‑3). Mature human Flt-3 Ligand consists of a 158 amino acid (aa) extracellular domain (ECD) with a cytokine-like domain and a juxtamembrane tether region, a 21 aa transmembrane segment, and a 30 aa cytoplasmic tail (4‑7). Within the ECD, human Flt-3 Ligand shares 71% and 65% aa sequence identity with mouse and rat Flt-3 Ligand, respectively. Human and mouse Flt-3 Ligand show cross-species activity (4‑6). Flt-3 Ligand is expressed as a noncovalently-linked dimer by T cells and bone marrow and thymic fibroblasts (1, 8). Each 36 kDa chain carries approximately 12 kDa of N- and O-linked carbohydrates (8). Alternate splicing and proteolytic cleavage of the transmembrane form can generate a soluble 30 kDa fragment that includes the cytokine domain (4, 8). Alternate splicing of human Flt-3 Ligand also generates membrane-associated isoforms that contain either a truncated cytoplasmic tail or an 85 aa substitution following the cytokine domain (4, 5, 8). Both transmembrane and soluble Flt-3 Ligand signal through the tyrosine kinase receptor Flt-3/Flk-2 (3, 4, 6, 7). Flt-3 Ligand induces the expansion of monocytes and immature dendritic cells as well as early B cell lineage differentiation (2, 9). It synergizes with IL-3, GM-CSF, and SCF to promote the mobilization and myeloid differentiation of hematopoietic stem cells (4‑6). It cooperates with IL-2, -6, -7, and -15 to induce NK cell development and with IL-3, -7, and -11 to induce terminal B cell maturation (1, 10). Animal studies also show Flt‑3 Ligand to reduce the severity of experimentally induced allergic inflammation (11).

References
  1. Wodnar-Filipowicz, A. (2003) News Physiol. Sci. 18:247.
  2. Dong, J. et al. (2002) Cancer Biol. Ther. 1:486.
  3. Gilliland, D.G. and J.D. Griffin (2002) Blood 100:1532.
  4. Hannum, C. et al. (1994) Nature 368:643.
  5. Lyman, S.D. et al. (1994) Blood 83:2795.
  6. Lyman, S.D. et al. (1993) Cell 75:1157.
  7. Savvides, S.N. et al. (2000) Nat. Struct. Biol. 7:486.
  8. McClanahan, T. et al. (1996) Blood 88:3371.
  9. Diener, K.R. et al. (2008) Exp. Hematol. 36:51.
  10. Farag, S.S. and M.A. Caligiuri (2006) Blood Rev. 20:123.
  11. Edwan, J.H. et al. (2004) J. Immunol. 172:5016.
Long Name
fms-like Tyrosine Kinase 3 Ligand
Entrez Gene IDs
2323 (Human); 14256 (Mouse); 102125470 (Cynomolgus Monkey); 493796 (Feline)
Alternate Names
FL; FLG3L; Flt3 ligand; Flt-3 Ligand; Flt3L; FLT3LG; fms-related tyrosine kinase 3 ligand; SL cytokine

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Citations for Human Flt-3 Ligand/FLT3L Antibody

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.

2 Citations: Showing 1 - 2
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  1. Creation of intercellular bonds by anchoring protein ligands to membranes using the diphtheria toxin T domain.
    Authors: Perier A, Gourier C, Pichard S, Husson J, Lajeunesse E, Babon A, Menez A, Gillet D
    FEBS Lett., 2007-11-06;581(28):5480-4.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  2. CD40-ligand stimulates myelopoiesis by regulating flt3-ligand and thrombopoietin production in bone marrow stromal cells.
    Authors: Solanilla A, Dechanet J, El Andaloussi A, Dupouy M, Godard F, Chabrol J, Charbord P, Reiffers J, Nurden AT, Weksler B, Moreau JF, Ripoche J
    Blood, 2000-06-15;95(12):3758-64.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot

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