Flt-3 Ligand/FLT3L Antibody [Biotin]

• Applications: WB, ELISA(Det)
• Clonality: Polyclonal
• Host: Goat
• Conjugate: Biotin
• Concentration: LYOPH

Flt-3 Ligand/FLT3L Antibody [Biotin] Summary

• Immunogen: S. frugiperda insect ovarian cell line Sf 21-derived recombinant human Flt-3 Ligand/FLT3L
  Thr27-Pro185
  Accession # AAA17999
• Specificity: Detects human Flt-3 Ligand/FLT3L in ELISAs and Western blots. In sandwich immunoassays, less than 0.05% cross-reactivity with recombinant human (rh) PlGF, recombinant mouse Flt-3 Ligand/FLT3L, rhVEGF and rhFlt-1 Fc chimera is observed.
• Source: N/A
• Isotype: IgG
• Clonality: Polyclonal
• Host: Goat
• Gene: FLT3LG
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Application Notes: ELISA Capture: Human Flt-3 Ligand Antibody (Catalog # MAB608)
  ELISA Detection: Human Flt-3 Ligand Biotinylated Antibody (Catalog # BAF308)
  Standard: Recombinant Human Flt-3 Ligand (Catalog # 308-FKN)

Packaging, Storage & Formulations

• 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.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
• Preservative: No Preservative
• Concentration: LYOPH
• Reconstitution Instructions: Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Background

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).

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.

Limitations

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.

Bioinformatics

• Gene Symbol: FLT3LG