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  • 產品名稱:重組體人Interleukin-15蛋白

  • 產品型號:rHuIL-15
  • 產品廠商:KALANG
  • 產品文檔:
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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
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.

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