Recombinant human IL-6 protein (Active) (ab259381)
Key features and details
- Expression system: HEK 293 cells
- Purity: >= 95% SDS-PAGE
- Endotoxin level:
- Active: Yes
- Suitable for: Cell Culture, Functional Studies, MS, SDS-PAGE, HPLC
Preparation and Storage
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Alternative names
- Interleukin BSF 2
- B cell differentiation factor
- B cell stimulatory factor 2
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Function
Cytokine with a wide variety of biological functions. It is a potent inducer of the acute phase response. Plays an essential role in the final differentiation of B-cells into Ig-secreting cells Involved in lymphocyte and monocyte differentiation. It induces myeloma and plasmacytoma growth and induces nerve cells differentiation Acts on B-cells, T-cells, hepatocytes, hematopoeitic progenitor cells and cells of the CNS. Also acts as a myokine. It is discharged into the bloodstream after muscle contraction and acts to increase the breakdown of fats and to improve insulin resistance. -
Involvement in disease
Genetic variations in IL6 are associated with susceptibility to rheumatoid arthritis systemic juvenile (RASJ) [MIM:604302]. An inflammatory articular disorder with systemic-onset beginning before the age of 16. It represents a subgroup of juvenile arthritis associated with severe extraarticular features and occasionally fatal complications. During active phases of the disorder, patients display a typical daily spiking fever, an evanescent macular rash, lymphadenopathy, hepatosplenomegaly, serositis, myalgia and arthritis.
Note=A IL6 promoter polymorphism is associated with a lifetime risk of development of Kaposi sarcoma in HIV-infected men. -
Sequence similarities
Belongs to the IL-6 superfamily. -
Post-translational
modificationsN- and O-glycosylated. -
Cellular localization
Secreted. - Information by UniProt
Images
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Functional Studies - Recombinant human IL-6 protein (Active) (ab259381)
Fully biologically active when compared to standard. The ED50 as determined by the dose-dependant Proliferation of TF-1 cells is 0.8067 ng/mL corresponding to a specific activity of 1.24 x 106 IU/mg.
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SDS-PAGE - Recombinant human IL-6 protein (Active) (ab259381)SDS-PAGE analysis of ab259381.
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HPLC - Recombinant human IL-6 protein (Active) (ab259381)Purity 99%.
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-6 protein (Active) (ab259381)M+1 Da, pass (+203 Da: Hex, +203: HexNAc, +291:NeuAc).
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).
