SCF Protein, Rat (His)

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Stem cell factor (SCF), as a key ligand of KIT, regulates cell survival, proliferation, hematopoiesis, stem cell maintenance, gametogenesis, mast cell development, migration, and melanogenesis. Binding to KIT activates signaling pathways involving phosphorylation events, key kinases (AKT1, RAS, RAF1, MAPK1/ERK2, MAPK3/ERK1), STAT family members, and PLCG1. SCF Protein, Rat (His) is the recombinant rat-derived SCF protein, expressed by E. coli , with C-6*His labeled tag.

For research use only. We do not sell to patients.
  • Species: Rat
  • Source: E. coli
  • Storage:
    Stored at -20°C for 2 years from date of receipt. 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.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs

Biological Activity

Description

Stem cell factor (SCF), as a key ligand of KIT, regulates cell survival, proliferation, hematopoiesis, stem cell maintenance, gametogenesis, mast cell development, migration, and melanogenesis. Binding to KIT activates signaling pathways involving phosphorylation events, key kinases (AKT1, RAS, RAF1, MAPK1/ERK2, MAPK3/ERK1), STAT family members, and PLCG1. SCF Protein, Rat (His) is the recombinant rat-derived SCF protein, expressed by E. coli , with C-6*His labeled tag.

Background

Stem Cell Factor (SCF) operates as a pivotal ligand for the receptor-type protein-tyrosine kinase KIT, exerting indispensable regulatory functions in cell survival, proliferation, hematopoiesis, stem cell maintenance, gametogenesis, mast cell development, migration, and melanogenesis. Upon binding to KIT, SCF activates diverse signaling pathways, triggering phosphorylation events that lead to the activation of key kinases such as AKT1 and components of the MAP kinase cascade, including RAS, RAF1, and MAPK1/ERK2 or MAPK3/ERK1. Furthermore, SCF-driven signaling involves the activation of STAT family members (STAT1, STAT3, and STAT5) and PLCG1, culminating in the production of crucial cellular signaling molecules. Operating synergistically with other cytokines, likely interleukins, SCF forms homodimers and non-covalently links to KIT, resulting in the formation of a heterotetramer that mediates KIT dimerization and subsequent activation through autophosphorylation. This intricate network underscores SCF's multifaceted role in orchestrating diverse cellular processes and developmental pathways.

Verified Bioactivity

Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 6.830 ng/mL, corresponding to a specific activity is 1.46×105 units/mg.

Technical Parameters

  • Species Rat
  • Source E. coli
  • Tag C-6*His
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • SCF (Q26-A189)
      Accession # P21581-1
    • 6*His
    • C-term
  • Protein Length

    Partial

  • Synonyms

    KITLG; SLF; Prev. MGF; Familial Progressive Hyperpigmentation 2; SCF; Steel Factor; Mast Cell Growth Factor; C-Kit Ligand; Stem Cell Factor; Kit Ligand; DFNA69; SHEP7; Kitl; DCUA; KL-1; FPHH; FPH2; WS2F; KIT Ligand; SF

  • AA Sequence

    QEICRNPVTDNVKDITKLVANLPNDYMITLNYVAGMDVLPSHCWLRDMVTHLSVSLTTLLDKFSNISEGLSNYSIIDKLGKIVDDLVACMEENAPKNVKESLKKPETRNFTPEEFFSIFNRSIDAFKDFMVASDTSDCVLSSTLGPEKDSRVSVTKPFMLPPVA

  • Predicted Molecular Mass

    19.3 kDa

  • Molecular Weight

    Approximately 18 kDa, based on SDS-PAGE under reducing conditions.

  • Purity

    ≥ 95%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.

Endotoxin Level

<1 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 from date of receipt. 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.

Calculators

Reconstitution Calculator

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

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=
Mass (in vial) Mass (in vial)
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Desired Reconstitution Concentration Desired Reconstitution Concentration
Dilution Calculator

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

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The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

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

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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