Functional Studies (Func), Antibody Production (AbP), Standard (STD), Protein Interaction (PI)
特异性
Optimal preservation of protein structure, post-translational modifications and functions.
产品特性
Recombinant human Interleukin-12 alpha / IL12A protein expressed in Insect cells.
Produced with end-sequenced ORF clone
Tested for bioactivity.
纯度
95 % , as determined by Coomassie stained SDS-PAGE.
内毒素水平
Less than 0.01 ng per μg protein as determined by the LAL method.
Biological Activity Comment
The ED50 is 0.05 - 0.25 ng/ml, corresponding to a specific activity of 0.4 - 2.0 x 10^7 units/mg, determined by the production of IFN&gamma by activated human PBMC in response to IL-12.
Recombinant human proteins can be used for: Native antigens for optimized antibody production Positive controls in ELISA and other antibody assays Protein-protein interaction In vitro biochemical assays and cell-based functional assays
限制
仅限研究用
浓度
> 50 μg/mL
缓冲液
10 mM NaH2PO4, 150 mM NaCl, pH 7.2
储存条件
-80 °C
储存方法
Store at -80°C. Thaw on ice, aliquot to individual single-use tubes, and then re-freeze immediately. Only 2-3 freeze thaw cycles are recommended.
This gene encodes a subunit of a cytokine that acts on T and natural killer cells, and has a broad array of biological activities. The cytokine is a disulfide-linked heterodimer composed of the 35-kD subunit encoded by this gene, and a 40-kD subunit that is a member of the cytokine receptor family. This cytokine is required for the T-cell-independent induction of interferon (IFN)-gamma, and is important for the differentiation of both Th1 and Th2 cells. The responses of lymphocytes to this cytokine are mediated by the activator of transcription protein STAT4. Nitric oxide synthase 2A (NOS2A/NOS2) is found to be required for the signaling process of this cytokine in innate immunity.