>IL-12B & IL-12A
>Human IL-12B & IL-12A Protein, His Tag & Flag Tag
The heterodimer Human IL-12B & IL-12A is produced by co-expression of IL-12B and IL-12A, has a calculated MW of 36.6 kDa (IL-12B) and 23.8 kDa (IL-12A). Subunit IL-12B is fused with polyhistidine tag at the C-terminus and subunit IL-12A is fused with flag tag at the C-terminus. The predicted N-terminus is Ile 23 (IL12B) and Arg 23 (IL12A). The reducing (R) heterodimer protein migrates as 43 kDa and 45 kDa (IL12B) and 35-40 kDa (IL12A) respectively due to glyosylation.
>90% as determined by SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.
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Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
No activity loss is observed after storage at:
Human IL-12B & IL-12A, His Tag & Flag Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 90%.
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