Each lot of our bioassay-validated recombinant proteins undergoes quality testing by functional assay to ensure the protein exhibits appropriate activity within a biologically relevant system. In this way, we ensure our proteins will perform within your experimental system. Some applications we test our proteins for include:

  • Activation
  • Binding
  • Chemotaxis
  • Cytokine Production
  • Cytotoxicity
  • Differentiation
  • Expansion
  • Growth
  • In vivo Assays
  • Inhibition
  • Polarization
  • Proliferation
  • Signaling
  • Standard Cell Culture
  • And many more...

Proliferation Assay


Recombinant Human IL-2

Proliferation of HT-2 cells induced by human IL-2.

Inhibition Assay


Recombinant Human TGF-β1

Proliferation of HT-2 cells induced by mouse IL-4 is inhibited by human TGF-β1.

Cytokine Production Assay


Recombinant Human IL-21

Human IL-21 induced-production of IFNγ in NK-92 cells.

Binding Assay


Recombinant Human B7-2/CD86​

Immobilized recombinant human B7-2/CD86 binds biotinylated CTLA-4 in a dose-dependent manner.