Human SCF / C-kit ligand Protein (aa 1-189, His Tag)
Similar to Kit ligand precursor (C-kit ligand), also known as Stem cell factor (SCF), Mast cell growth factor (MGF), or Hematopoietic growth factor KL. SCF/C-kit ligand is the ligand of the tyrosine-kinase receptor encoded by the KIT locus. This ligand is a pleiotropic factor that acts in utero in germ cell and neural cell development, and hematopoiesis, all believed to reflect a role in cell migration. In adults, it functions pleiotropically, while mostly noted for its continued requirement in hematopoiesis. SCF/C-kit ligand stimulates the proliferation of mast cells. This protein can augment the proliferation of both myeloid and lymphoid hematopoietic progenitors in bone marrow culture. It may act synergistically with other cytokines, probably interleukins SCF/C-kit ligand is the ligand for the tyrosine kinase receptor c-kit, which is expressed on both primitive and mature hematopoietic progenitor cells. In vitro, SCF/C-kit ligand synergizes with other growth factors, such as granulocyte colony-stimulating factor (G-CSF), granulocyte-macrophage colony-stimulating factor, and interleukin-3 to stimulate the proliferation and differentiation of cells of the lymphoid, myeloid, erythroid, and megakaryocytic lineages. In vivo, SCF/C-kit also synergizes with other growth factors and has been shown to enhance the mobilization of peripheral blood progenitor cells in combination with G-CSF. In phase I/II clinical studies administration of the combination of SCF and G-CSF resulted in a two- to threefold increase in cells that express the CD34 antigen compared with G-CSF alone.
Product Specifications
Synonyms
Accession Number
P21583-1
Reactivity
Human
Cross Reactivity
Human
Label
His-Tag
Assay Protocol
See Datasheet send with the product
Endotoxin
< 1.0 EU per μg of the protein as determined by the LAL method
Purity
≥ 92 % as determined by SDS-PAGE. ≥ 90 % as determined by SEC-HPLC.
Bioactivity
Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 1-5 ng/mL.
Length
175
Form
Lyophilized or frozen liquid
Buffer
20mM Tris, 500mM NaCl, pH 8.0
Reconstitution
See Datasheet
Molecular Weight
22 kDa
Storage Conditions
Host or Source
Insect cells
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