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R&D Systems™ Recombinant Human IL-6 Protein

A New rh IL-6 is Available! The new protein has ∼2 fold better activity and is HEK293 expressed!

Supplier:  R&D Systems™ 206IL200

Catalog No. 20-6IL-200

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Measured in a cell proliferation assay using T1165.85.2.1 mouse plasmacytoma cells. Nordan, R.P. et al. (1987) J. Immunol. 139:813. The ED50 for this effect is 0.2-0.8 ng/mL. The specific activity of Recombinant Human IL-6 is approximately 1.1 x 105 IU/μg, which is calibrated against human IL-6 WHO International Standard (NIBSC code: 89/548). Specific activity is for reference purposes only and is not routinely tested.


Lyophilized from a 0.2 µm filtered solution in PBS and NaCl with BSA as a carrier protein.
M.W. theroretical: 20.9 kDa
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
E. coli-derived human IL-6 protein Pro29-Met212
<0.10 EU / 1 µg of the protein by the LAL method.
200 µg
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20°C to -70°C as supplied. 1 month, 2°C to 8°C under sterile conditions after reconstitution. 3 months, -20°C to -70°C under sterile conditions after reconstitution.
B-cell differentiation factor, B-cell stimulatory factor 2, BSF2, BSF-2, CDF, CTL differentiation factor, HSF, hybridoma growth factor, IFNB2, IFN-beta-2, IL6, IL-6, Interferon beta-2, interleukin 6 (interferon, beta 2), interleukin BSF-2, interleukin-6, MGI-2A
Reconstitute at 100-200 µg/mL in sterile PBS containing (at least 0.1% human or bovine serum albumin.)


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