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F3422

Sigma-Aldrich

Flt-3/Flk-2 ligand human

recombinant, expressed in E. coli, lyophilized powder, suitable for cell culture, ≥98% (SDS-PAGE and HPLC)

Synonym(s):

FL

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About This Item

MDL number:
MFCD01093789
UNSPSC Code:
51111800
NACRES:
NA.32

biological source

human

Quality Level

100

recombinant

expressed in E. coli

Assay

≥98% (SDS-PAGE and HPLC)

form

lyophilized powder

potency

≤1.0 ng/mL

mol wt

17.6 kDa

packaging

pkg of 5 μg

storage condition

avoid repeated freeze/thaw cycles

technique(s)

cell culture | mammalian: suitable

impurities

endotoxin, tested

UniProt accession no.

P36888

storage temp.

−20°C

Gene Information

human ... FLT3(2322)

General description

Mouse and human Flt-3 ligand share ~72% homology and both demonstrate cross-species activity.

Biochem/physiol Actions

Flt-3/Flk-2 Ligand (FL, or Flt-3L) is a transmembrane glycoprotein that binds and activates the Flt-3 receptor. Expression of Flt-3 is primarily restricted among hematopoietic cells to the most primitive progenitor cells.

Physical form

Lyophilized, 0.2 μm sterile filtered, with with 0.5x PBS.

Analysis Note

The biological activity is measured by its ability to stimulate the proliferation of human AML5 cells.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Lyman, S., et al. et al.
The Cytokine Handbook, 727-727 (1998)
H G Drexler et al.
Leukemia & lymphoma, 33(1-2), 83-91 (1999-04-08)
FLT3 ligand (FL) acting through its tyrosine kinase receptor FLT3 has pleiotropic and potent effects on hematopoietic cells. The well-described involvement of this ligand-receptor pair in physiological hematopoiesis raised the question whether FL and FLT3 also play a role in
R Namikawa et al.
Stem cells (Dayton, Ohio), 14(4), 388-395 (1996-07-01)
The biological activities of the ligand for the Flk2/Flt3 receptor tyrosine kinase (FL) on human hematopoietic cells are reviewed. In in vitro studies, FL shows relatively few effects by itself on the proliferation and differentiation of hematopoietic cells, but exhibits
S D Lyman et al.
Oncogene, 8(4), 815-822 (1993-04-01)
We have developed rabbit polyclonal antibodies to the C-terminus of the flt3-encoded protein, which is a member of the receptor tyrosine kinase family. Immunoprecipitation using this antiserum brings down two protein bands, a major band of 143 kDa and a
O Rosnet et al.
Oncogene, 6(9), 1641-1650 (1991-09-01)
Receptor-type tyrosine kinases presenting an extracellular region with five immunoglobulin-like domains, and strongly related by sequence similarities in the intracellular region, constitute a family of receptors involved in development and function of various cell lineages. We have isolated and characterized
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