1. Recombinant Proteins
  2. Cytokines and Growth Factors
  3. Interleukin & Receptors
  4. IL-7
  5. IL-7 Protein, Human

IL-7 Protein, Human

Cat. No.: HY-P7045
COA Handling Instructions

IL-7 Protein, Human, a hematopoietic cytokine, promotes T-cell recovery after allogeneic stem cell transplantation.

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

Protein Expression Service

Size Price Stock Quantity
10 μg $190 In-stock
50 μg $620 In-stock
100 μg $1050 Get quote
> 100 μg   Get quote  

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Top Publications Citing Use of Products
  • Biological Activity

  • Technical Parameters

  • Properties

  • Documentation

  • References


IL-7 Protein, Human, a hematopoietic cytokine, promotes T-cell recovery after allogeneic stem cell transplantation.


Recombinant Human Interleukin-7 (r-hIL-7) has a central role in T-cell development and survival and enhances immune recovery in murine models of allo-hematopoietic stem cell transplantation (allo-HSCT). Recombinant Human Interleukin-7 induces a doubling in CD4+ and CD8+ T cells. The main effect of IL-7 is an expansion of effector memory T cells. r-hIL-7 can enhance immune recovery after a T cell–depleted allo-HSCT without causing significant GVHD or other serious toxicity[1].

Biological Activity

1.The ED50 is <0.5 ng/mL as measured by murine 2E8 cells, corresponding to a specific activity of >2.0 × 106 units/mg.
2.Measured in a cell proliferation assay using PHA-activated human peripheral blood lymphocytes (PBL). The ED50 for this effect is 0.02-0.08 ng/mL.




E. coli


Tag Free


P13232 (D26-H177)

Gene ID
Molecular Construction
IL-7 (D26-H177)
Accession # P13232
rHuIL-7; LP-1; pre-B cell factor
AA Sequence


Molecular Weight

17-20 kD


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


Lyophilized powder


Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 300 mM NaCl, pH 8.0.

Endotoxin Level

<1 EU/μg, determined by LAL method.


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.


Room temperature in continental US; may vary elsewhere.


IL-7 Protein, Human 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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