IL-3 Protein, Human (His-Avi)

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IL-3 protein is mainly secreted by T lymphocytes, mast cells and osteoblasts and is critical for the generation and differentiation of hematopoietic progenitor cells. It stimulates mature basophils, eosinophils and monocytes, promoting functional activation. IL-3 Protein, Human (His-Avi) is the recombinant human-derived IL-3 protein, expressed by E. coli , with N-His, N-Avi labeled tag.

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  • Species: Human
  • Source: E. coli
  • Almacenamiento:
    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.
  • Actividad biológica
  • Technical Parameters
  • Product Properties
  • Documentación
  • Help & FAQs

Actividad biológica

Descripciòn

IL-3 protein is mainly secreted by T lymphocytes, mast cells and osteoblasts and is critical for the generation and differentiation of hematopoietic progenitor cells. It stimulates mature basophils, eosinophils and monocytes, promoting functional activation. IL-3 Protein, Human (His-Avi) is the recombinant human-derived IL-3 protein, expressed by E. coli , with N-His, N-Avi labeled tag.

Background

The cytokine IL-3, predominantly secreted by activated T-lymphocytes, mast cells, and osteoblastic cells, plays a crucial role in controlling the production and differentiation of hematopoietic progenitor cells into lineage-restricted cells. Additionally, IL-3 stimulates mature basophils, eosinophils, and monocytes, promoting their functional activation. Beyond its hematopoietic functions, IL-3 contributes to neural cell proliferation and survival. Moreover, it participates in bone homeostasis by inhibiting osteoclast differentiation through the prevention of NF-kappa-B nuclear translocation and activation. Mechanistically, IL-3 exerts its biological effects through a receptor composed of the IL3RA subunit and the signal transducing subunit IL3RB. Stimulation of this receptor leads to the rapid activation of JAK2 kinase activity, initiating a STAT5-mediated transcriptional program. Alternatively, IL-3 contributes to cell survival under oxidative stress in non-hematopoietic systems by activating pathways mediated by PI3K/AKT and ERK. The cytokine also interacts with IL3RA to modulate its diverse physiological effects.

Verified Bioactivity

Immobilized Human IL-3 His at 5 μg/mL (100 μL/Well) on the plate. Dose response curve for Human IL-3 R alpha hFc with the EC50 < 0.61 μg/mL determined by ELISA.

Technical Parameters

  • Species Human
  • Source E. coli
  • Tag N-Avi;N-6*His
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • 6*His-Avi
    • IL-3 (A20-F152)
      Accession # P08700
    • C-term
  • Protein Length

    Full Length of Mature Protein

  • Synonyms

    IL3; Colony-Stimulating Factor, Multiple; Interleukin 3; P-Cell Stimulating Factor; IL-3; P-Cell-Stimulating Factor; Hematopoietic Growth Factor; Mast-Cell Growth Factor; MCGF; Mast Cell Growth Factor; Multipotential Colony-Stimulating Factor; MGC79398; I

  • AA Sequence

    APMTQTTPLKTSWVNCSNMIDEIITHLKQPPLPLLDFNNLNGEDQDILMENNLRRPNLEAFNRAVKSLQNASAIESILKNLLPCLPLATAAPTRHPIHIKDGDWNEFRRKLTFYLKTLENAQAQQTTLSLAIF

  • Predicted Molecular Mass

    16.9 kDa

  • Peso molecular

    Approximately 17 kDa, based on SDS-PAGE under reducing conditions.

  • Pureza

    ≥ 95%, as determined by Bis-Tris PAGE.

Product Properties

Appearance

Lyophilized powder

Formulation

1.Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4, 5% trehalose.
2.Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4, 8% trehalose.
Please refer to the lot-specific COA for specific buffer information.

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.

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.

Envío

Room temperature in continental US; may vary elsewhere.

Calculators

Reconstitution Calculator

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

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

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

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