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  2. Cytokines and Growth Factors
  3. SCF Protein, Mouse

SCF Protein, Mouse

Cat. No.: HY-P70528
COA Handling Instructions

SCF proteins are ligands for the KIT receptor-type protein tyrosine kinase and are critical for multiple cellular processes, including survival, proliferation, hematopoiesis, stem cell maintenance, gametogenesis, mast cell development, migration, and melanogenesis. Binding to KIT activates multiple signaling pathways involving PIK3R1, AKT1, GRB2, RAS, RAF1, MAP kinase, STAT family members and PLCG1, producing signaling molecules. SCF Protein, Mouse is the recombinant mouse-derived SCF protein, expressed by E. coli , with tag free. The total length of SCF Protein, Mouse is 164 a.a., with molecular weight of ~16.0 kDa.

For research use only. We do not sell to patients.

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  • Biological Activity

  • Technical Parameters

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Description

SCF proteins are ligands for the KIT receptor-type protein tyrosine kinase and are critical for multiple cellular processes, including survival, proliferation, hematopoiesis, stem cell maintenance, gametogenesis, mast cell development, migration, and melanogenesis. Binding to KIT activates multiple signaling pathways involving PIK3R1, AKT1, GRB2, RAS, RAF1, MAP kinase, STAT family members and PLCG1, producing signaling molecules. SCF Protein, Mouse is the recombinant mouse-derived SCF protein, expressed by E. coli , with tag free. The total length of SCF Protein, Mouse is 164 a.a., with molecular weight of ~16.0 kDa.

Background

The stem cell factor (SCF) protein serves as a ligand for the receptor-type protein-tyrosine kinase KIT, playing a crucial role in the regulation of various cellular processes. Its functions encompass the control of cell survival and proliferation, hematopoiesis, stem cell maintenance, gametogenesis, mast cell development, migration, and melanogenesis. Upon binding with KIT, SCF activates multiple signaling pathways, including the phosphorylation of PIK3R1 and subsequent activation of AKT1. The interaction also triggers signaling cascades involving GRB2, RAS, RAF1, and the MAP kinases MAPK1/ERK2 and/or MAPK3/ERK1. Furthermore, SCF and KIT promote the activation of STAT family members (STAT1, STAT3, and STAT5), as well as PLCG1, leading to the production of diacylglycerol and inositol 1,4,5-trisphosphate as cellular signaling molecules. Acting synergistically with other cytokines, likely interleukins, SCF forms a homodimer non-covalently linked and a heterotetramer with KIT, facilitating KIT dimerization and subsequent activation through autophosphorylation.

Biological Activity

1.The dose-dependent stimulation of TF 1 human erythroleukemic cells has an ED50 value of 4-12 ng/mL.
2.Measured in a cell proliferation assay using TF‑1 human erythroleukemic cells.The ED50 for this effect is 0.5915 ng/mL, corresponding to a specific activity is 1.69×106 units/mg.

Species

Mouse

Source

E. coli

Tag

Tag Free

Accession

P20826 (K26-A189)

Gene ID

17311  [NCBI]

Molecular Construction
N-term
SCF (K26-A189)
Accession # P20826
C-term
Synonyms
Kit ligand; Hematopoietic growth factor KL; Mast cell growth factor; MGF; Steel factor; Stem cell factor; SCF
AA Sequence

KEICGNPVTDNVKDITKLVANLPNDYMITLNYVAGMDVLPSHCWLRDMVIQLSLSLTTLLDKFSNISEGLSNYSIIDKLGKIVDDLVLCMEENAPKNIKESPKRPETRSFTPEEFFSIFNRSIDAFKDFMVASDTSDCVLSSTLGPEKDSRVSVTKPFMLPPVA

Molecular Weight

Approximately 16.0 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE.

Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4 or 20 mM PB, 150 mM NaCl, pH 7.4.

Endotoxin Level

<0.01 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation

SCF Protein, Mouse Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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SCF Protein, Mouse
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