• HEK293 expressed
  • Endotoxin-free
  • Animal-component free

HumanKine® recombinant human FLT3 Ligand protein


0.4-3.0 ng/mL

Specific Activity

minimally 7.00 x 105 IU/mg

Species Reactivity




Cat no : HZ-1151


FL, Flt3 ligand, Flt3L, FLT3LG, SL cytokine

Technical Specifications

GeneID 2323
Species Human
Expression HEK293
Activity(Primary) 0.4-3.0 ng/mL
Specific Activityminimally 7.00 x 105 IU/mg
Purity >95%
Endotoxin<1 EU/µg
Accession NumberP49771
Molecular Mass 27 to 34 kDa reduced, 23 to 30 kDa non-reduced, monomer, glycosylated
Formulation 1x PBS, See Certificate of Analysis for details
Species Reactivity human,mouse

Stability and Reconstitution

Stability and StorageProduct FormTemperature ConditionsStorage Time
(From Date of Receipt)
Lyophilized-20°C to -80°CUntil Expiry Date
LyophilizedRoom Temperature2 weeks
Reconstituted as per CofA-20°C to -80°C6 months
Reconstituted as per CofA4°C1 week
Avoid repeated freeze-thaw cycles.
Reconstitution Briefly centrifuge the vial before opening. It is recommended to reconstitute the protein to 0.2 mg/mL in sterile water containing 0.1% endotoxin-free recombinant human serum albumin (HSA). Gently swirl or tap vial to mix.


FMS-related tyrosine kinase 3 ligand (FLT3 Ligand) is a growth factor that regulates proliferation of early hematopoietic cells. FLT3 Ligand binds to cells expressing the tyrosine kinase receptor FLT3. FLT3 Ligand by itself does not stimulate proliferation of early hematopoietic cells, but synergizes with other CSFs and interleukins to induce growth and differentiation (PMID: 8590775; 7544638; 12176867).


FL, Flt3 ligand, Flt3L, FLT3LG, SL cytokine



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