Recombinant human IL-3 protein (Active) (ab259404)
Key features and details
- Expression system: HEK 293 cells
- Purity: >= 95% SDS-PAGE
- Endotoxin level:
- Active: Yes
- Suitable for: SDS-PAGE, Functional Studies, HPLC, MS, Cell Culture
Preparation and Storage
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Alternative names
- Colony stimulating factor multiple
- Hematopoietic growth factor
- IL 3
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Function
Granulocyte/macrophage colony-stimulating factors are cytokines that act in hematopoiesis by controlling the production, differentiation, and function of 2 related white cell populations of the blood, the granulocytes and the monocytes-macrophages.
This CSF induces granulocytes, macrophages, mast cells, stem cells, erythroid cells, eosinophils and megakaryocytes. -
Tissue specificity
Activated T-cells, mast cells, natural killer cells. -
Sequence similarities
Belongs to the IL-3 family. -
Cellular localization
Secreted. - Information by UniProt
Images
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Functional Studies - Recombinant human IL-3 protein (ab259404)
Fully active compared to a standard. The ED50 as determined by the dose-dependant proliferation of TF-1 cells is 0.8577 ng/mL corresponding to a Specific Activity of 1.17 x 106 IU/mg.
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SDS-PAGE - Recombinant human IL-3 protein (ab259404)SDS-PAGE analysis of ab259404.
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HPLC - Recombinant human IL-3 protein (ab259404)Purity: 95%.
Sample was deglycosylated prior to HPLC run; the deglycosylation enyzmes account for the second peak.
The spectrum was recorded using a 1260 Infinity II HPLC system with DAD and a MabPac RP column (3.0x100 mm, 4 µm). 5 µL of purified protein was injected and the gradient run from 80 % water:TFA (99.9:0.1 v/v) and 20 % acetonitrile:water:TFA (90:9.9:0.1 v/v/v) to 20 % water:TFA (99.9:0.1 v/v) and 80 % acetonitrile:water:TFA (90:9.9:0.1 v/v/v) within 3 minutes followed by an isocratic step for another 3 min. Flow rate was 0.5 mL/min and the column compartment temperature was 50 °C.
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Mass Spectrometry - Recombinant human IL-3 protein (ab259404)M + 2.61 Da (Calc mass 15138.39 Da).
The spectrum was recorded with a 6545XT AdvanceBio LC/Q-TOF (Agilent Technologies) and a MabPac RP column (42.1x50 mm, 4 µm, Thermo Scientific). 5 µL of purified protein was injected and the gradient run from 85 % water:FA (99.9:0.1 v/v) and 15 % acetonitrile:FA (90:9.9:0.1 v/v/v) to 55 % water:FA (99.9:0.1 v/v) and 45 % acetonitrile:FA (90:9.9:0.1 v/v/v) within 3 minutes followed by an isocratic step for another 2.5 min. Flow rate was 0.4 mL/min and the column compartment temperature was 60 °C. Data was analysed and deconvoluted using the Bioconfirm software (Agilent Technologies).