| Background | 
                                Interleukin-7 (IL-7) is a multipotent cytokine belonged to one of the members of IL-2 superfamily. IL-7 has diverse effects on the hematopoietic and immune regulations. IL-7 is a trophic factor that is necessary for both B cell and T cell proliferation and development. In addition, it presents potential antitumor effects in tumors such as glioma, melanoma, lymphoma, leukemia, prostate cancer, and glioblastoma. | 
                            
                            
                            
                                | Synonyms | 
                                interleukin 7, Lymphopoietin 1(LP-1), pre-B-cell factor, IL7 | 
                            
                            
                            
                                | Uniprot ID | 
                                P13232 | 
                            
                            
                            
                                | Molecular Weight | 
                                The protein has a calculated MW of 18.3 kDa.
The protein migrates as 19 kDa under reducing condition (SDS-PAGE analysis). | 
                            
                            
                            
                                | Expression System | 
                                Escherichia coli | 
                            
                            
                            
                                | Purity | 
                                >95% as determined by SDS-PAGE analysis. | 
                            
                            
                            
                                | Activity | 
                                Measured by its ability to induce PHA-activated human PBMCs proliferation. The ED₅₀ for this effect is <0.8 ng/mL. The specific activity of recombinant human IL-7 is > 1 x 10⁸ units/mg. | 
                            
                            
                            
                                | Endotoxin Level | 
                                <0.05 EU per 1 μg of the protein by the LAL method. | 
                            
                            
                            
                                | Protein Sequence | 
                                MDCDIEGKDGKQYESVLMVSIDQLLDSMKEIGSNCLNNEFNFFKRHICDANKEGMFLFRAARKLRQFLKMNSTGDFDLHLLKVSEGTTILLNCTGQVKGRKPAALGEAQPTKSLEENKSLKEQKKLNDLCFLKRLLQEIKTCWNKILMGTKEH with polyhistidine tag at the C-terminus. | 
                            
                            
                            
                                | Protein Tag | 
                                His Tag (C-term) | 
                            
                            
                            
                                | Form | 
                                Lyophilized from a 0.2 µm filtered solution of PBS, pH 8.0. | 
                            
                            
                           
                              
                                | Application | 
                                Cell Culture |