- Blood fluke(2)
- Human(1)
Recombinant Human IL-12/23 p40, Fc/His-tagged
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Cat.No. : | p40-P1008H Optional Service: Optional requirements on this protein |
Product Overview : | Recombinant Human IL-12/23 p40 fused with Fc fragment of Human IgG or His tag was expressed in CHO. |
Description : | Bioactive interleukin-12 p70 (IL-12p70) is a heterodimer composed of 2 subunits: p35 and p40. Although p35 is expressed in numerous cell types, p40 expression ismore restricted and determines the ability of a given cell-type to produce bioactive IL-12. However, in the cells that are capable of producing both IL-12 subunits, it is the p35 subunit, produced in much lower amounts than p40, that plays the role of a limiting factor and determines the amount of bioactive IL-12 p70 that is secreted. IL-12 p70 heterodimer is a major Th1-driving cytokine. In contrast, p40 homodimer, secreted by antigen presenting cells (APCs) in the absence of p35 production, and to a lesser extent the p40 monomer, were shown to act as antagonists of mouse and human IL-12 receptors and to inhibit IL-12–dependent immune functions in vitro andin vivo. |
Source : | CHO |
Species : | Human |
Tag : | Fc/His |
Predicted N Terminal : | IWELKKDVYV |
Form : | Normally 20-50mM NaAC-HAC and 100-150 mM NaCl are added, pH 5.0-6.0. |
Molecular Mass : | Recombinant human p40 comprises 538 and 312 amino acids of p40-Fc and p40-6His, respectively. It is about 80 kDa and 52 kDa of p40-Fc and p40-6His under reducing conditions, respectively. |
Endotoxin : | <1.0EU per 10 mg protein as determined by the LAL method |
Purity : | >95% as determined by SDS-PAGE and HPLC |
Stability : | Samples are stable for up to six months from date of receipt at -20 centigrade and are stable for two months at 4 centigrade. |
Storage : | Store it under sterile conditions at -70 centigrade upon receiving. Recommend to pack the protein into smaller quantities for optimal storage. Avoid repeated freeze-thaw cycles. |
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