產品詳情
簡單介紹：
重組體人Interleukin-15蛋白與其它公司提供的重組蛋白不同，rHuIL-15蛋白產品為采用CFS的無細胞麥胚蛋白合成系統表達出來的重組蛋白，可表達出對細胞有毒性、易被蛋白酶降解的蛋白；并獲得具有良好的可溶性，并有翻譯后修飾、從而部分具有功能的蛋白.同時獨有的全自動蛋白純化技術則簡便高效，將蛋白純化過程中對蛋白的損傷降低到*小程度.重組體人Interleukin-15蛋白（全長序列）產品可用于Western Blot驗證、抗體制備、蛋白檢測、ELISA等試驗中.
詳情介紹：
重組體人Interleukin-15蛋白
| Species | Human |
| Accession | P40933 |
| GeneID | 3600 |
| Source | Escherichia coli. |
| Molecular Weight | Approximately 12.9 kDa, a single non-glycosylated polypeptide chain containing 114 amino acids. |
| Quantity | 2μg/10μg/1000μg |
| AA Sequence | 重組體人Interleukin-15蛋白NWVNVISDLK KIEDLIQSMH IDATLYTESD VHPSCKVTAM KCFLLELQVI SLESGDASIH DTVENLIILA NNSLSSNGNV TESGCKECEE LEEKNIKEFL QSFVHIVQMF INTS |
| Purity | > 97 % by SDS-PAGE and HPLC analyses. |
| Biological Activity | Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine CTLL-2 cells is less than 0.5 ng/ml, corresponding to a specific activity of > 2.0 × 106 IU/mg. |
| Physical Appearance | Sterile Filtered White lyophilized (freeze-dried) powder. |
| Formulation | Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.4. |
| Endotoxin | Less than 1 EU/μg of rHuIL-15 as determined by LAL method. |
| Reconstitution | We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions. |
| Storage | This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles. |
| 重組體人Interleukin-15蛋白 | |
| SDS-PAGE |
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| Reference |
重組體人Interleukin-15蛋白1. Anderson DM, Johnson L, Glaccum MB, et al. 1995. Genomics, 25: 701-6. 2. Krause H, Jandrig B, Wernicke C, et al. 1996. Cytokine, 8: 667-74. 3. Chirifu M, Hayashi C, Nakamura T, et al. 2007. Nat Immunol, 8: 1001-7. 4. Grabstein KH, Eisenman J, Shanebeck K, et al. 1994. Science, 264: 965-8. 5. Giri JG, Ahdieh M, Eisenman J, et al. 1994. EMBO J, 13: 2822-30. 6. Arena A, Merendino RA, Bonina L, et al. 2000. New Microbiol, 23: 105-12. |
| Background | 重組體人Interleukin-15蛋白Human Interleukin-15 (IL-15) is expressed by the IL15 gene located on the chromosome 4. It shares approximately 97 % and 73 % sequence identity with simian and murine IL-15, respectively. Both human and simian IL-15 are active on murine cells. IL-15 is secreted by mononuclear phagocytes (and some other cells), especially macrophages following infection by virus. It possesses a variety of biological functions, including stimulating and maintaining of cellular immune responses, especially regulating T and natural killer (NK) cell activation and proliferation. In additionally, it shares many biological properties with IL-2, including T, B and NK cell-stimulatory activities. IL-15 signals through a complex composed of IL-2/IL-15 receptor beta chain. Although IL-15 lacks sequence homology with IL-2, it has recently been shown that both the beta and gamma chains of the IL-2 receptor are utilized for IL-15 binding and signaling. In addition, an IL-15 specific binding protein has also been cloned from a mouse T cell clone. |
