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GM-CSF Protein, Human (HEK293)

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Based on 2 publication(s) in Google Scholar

The GM-CSF protein functions as a key cytokine that promotes the growth and differentiation of hematopoietic precursor cells of different lineages, such as granulocytes, macrophages, eosinophils, and erythrocytes. In its monomeric form, GM-CSF acts as a signaling molecule, orchestrating complex receptor assemblies. GM-CSF Protein, Human (HEK293) is the recombinant human-derived GM-CSF protein, expressed by HEK293 , with tag free.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: HEK293
  • 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.
  • Experimental Validation Results for GM-CSF Protein, Human (HEK293)
  • Experimental Validation Results for GM-CSF Protein, Human (HEK293)
  • GM-CSF Protein, Human (HEK293) Product Image
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609-228-6898
[email protected] [email protected]
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  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
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Biological Activity

Description

The GM-CSF protein functions as a key cytokine that promotes the growth and differentiation of hematopoietic precursor cells of different lineages, such as granulocytes, macrophages, eosinophils, and erythrocytes. In its monomeric form, GM-CSF acts as a signaling molecule, orchestrating complex receptor assemblies. GM-CSF Protein, Human (HEK293) is the recombinant human-derived GM-CSF protein, expressed by HEK293 , with tag free.

Background

GMP GM-CSF Protein functions as a pivotal cytokine, fostering the growth and differentiation of hematopoietic precursor cells spanning diverse lineages, such as granulocytes, macrophages, eosinophils, and erythrocytes. In its monomeric form, GMP GM-CSF serves as a signaling molecule, orchestrating a complex receptor assembly. This receptor complex takes the shape of a dodecamer, consisting of two head-to-head hexamers, each composed of two alpha, two beta, and two ligand subunits. This structural intricacy underscores the specificity and regulatory role of GMP GM-CSF in directing cellular responses within the hematopoietic system.

Verified Bioactivity

Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is ≤ 1.731 ng/mL, corresponding to a specific activity is ≥ 5.777×105 units/mg.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag Tag Free
  • Accession

    P04141 (A18-E144)

  • Gene ID
    1437  [NCBI]
  • Molecular Construction
    • N-term
    • GM-CSF (A18-E144)
      Accession # P04141
    • C-term
  • Protein Length

    Full Length of Mature Protein

  • Synonyms

    CSF2; Molgramostim; Colony Stimulating Factor 2; Molgramostin; GMCSF; CSF; Sargramostim; Granulocyte-Macrophage Colony Stimulating Factor; GM-CSF; Granulocyte Macrophage-Colony Stimulating Factor; Colony Stimulating Factor 2 (Granulocyte-Macrophage); Colo

  • AA Sequence

    APARSPSPSTQPWEHVNAIQEARRLLNLSRDTAAEMNETVEVISEMFDLQEPTCLQTRLELYKQGLRGSLTKLKGPLTMMASHYKQHCPPTPETSCATQIITFESFKENLKDFLLVIPFDCWEPVQE

  • Predicted Molecular Mass

    14.5 kDa

  • Molecular Weight

    Approximately 19-29 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.

  • Glycosylation

    Yes

  • Purity

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

Product Properties

Appearance

Lyophilized powder.

Formulation

1.Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.
2.Lyophilized from a 0.22 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.4.
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. 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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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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Measured by its ability to inhibit anti-CD3-induced proliferation of stimulated CTLL-2 mouse cytotoxic T cells. The ED50 this effect is 0.8023 μg/ml, corresponding to a specific activity is 1246.42 units/mg.

Assay Types
  • 1/16

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

  • 1/16

    MedChemExpress Validation
     Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 22.35 pg/mL, corresponding to a specific activity is 4.474×107 units/mg.

  • GM-CSF Protein, Human (HEK293) Product Image
    1/16
  • Experimental Validation Results for GM-CSF Protein, Human (HEK293)
  • Experimental Validation Results for GM-CSF Protein, Human (HEK293)
  • GM-CSF Protein, Human (HEK293) Product Image