SCF Protein, Human, Recombinant (aa 1-189, His)

SCF Protein, Human, Recombinant (aa 1-189, His) is expressed in Baculovirus insect cells with His tag. The predicted molecular weight is 19.9 kDa and the accession number is P21583-1.

SCF Protein, Human, Recombinant (aa 1-189, His)

パッケージサイズ	在庫状況	単価(税別)
100 μg	在庫あり	￥ 68,000
200 μg	約5 days	￥ 120,500
500 μg	約5 days	￥ 255,000

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生物学的情報	Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 1-5 ng/mL.
説明	SCF Protein, Human, Recombinant (aa 1-189, His) is expressed in Baculovirus insect cells with His tag. The predicted molecular weight is 19.9 kDa and the accession number is P21583-1.

Species	Human
Expression Host	Baculovirus-Insect Cells
Tag	His
Accession Number	P21583-1
別名	DCUA, Kitl, FPHH, SCF, KL-1, SF, FPH2, MGF, SHEP7, C-kit ligand, KIT ligand
Construction	A DNA sequence encoding the amino acid (Met 1-Ala 189) of human SCF (P21583-1) extracellular domain was expressed, with a polyhistidine tag at the C-terminus.
Protein Purity	≥ 92 % as determined by SDS-PAGE. ≥ 90 % as determined by SEC-HPLC.
分子量	19.9 kDa (predicted)

Endotoxin	< 1.0 EU per μg of the protein as determined by the LAL method.
Formulation	Lyophilized from sterile 20mM Tris, 500mM NaCl, pH 8.0. Pleasecon tact usfor any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution	A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage	Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping	In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background	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.

参考文献

1. McNiece IK,et al. (1995) Stem cell factor. J Leukoc Biol. 58(1): 14-22. 2. Besmer P,et al. (1993) The kit-ligand (steel factor) and its receptor c-kit/W: pleiotropic roles in gametogenesis and melanogenesis. Dev Suppl. 1993:125-37. 3. Mekori YA,et al. (1993) IL-3-dependent murine mast cells undergo apoptosis on removal of IL-3. Prevention of apoptosis by c-kit ligand. J Immunol. 151(7): 3775-84.

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SCF Protein, Human, Recombinant (aa 1-189, His)

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