Active Recombinant Human IL2 Protein

• Cat.No.: IL2-06H
• Product Overview: Recombinant Human IL2 Protein was expressed in E. coli.

Specification

• Description: IL-2 is a powerful immunoregulatory lymphokine produced by T-cells in response to antigenic or mitogenic stimulation. It is expressed by CD4+ and CD8+ T cells, γδ T cells, B cells, dendritic cells, and eosinophils. IL-2/IL-2R signaling is required for T-cell proliferation and other fundamental functions which are essential for the immune response. The receptor for IL-2 consists of three subunits (55 kDa IL2Rα, 75 kDa IL2Rβ, 64 kDa common gamma chain γc/IL2Rγ) that are present on the cell surface in varying preformed complexes. Mature human IL-2 shares 56 % and 66 % amino acid sequence identity with mouse and rat IL-2, respectively. Human and mouse IL-2 exhibit cross-species activity.
• Source: E. coli
• Species: Human
• Form: Lyophilized from a 0.2 μm filtered concentrated solution in 20 mM PB, pH 3.5.
• Bio-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 0.1 ng/ml, corresponding to a specific activity of > 1.0 × 107 IU/mg.
• Molecular Mass: 15.4 kDa
• Protein Length: 133 amino acids
• AA Sequence: APTSSSTKKT QLQLEHLLLD LQMILNGINN YKNPKLTRML TFKFYMPKKA TELKHLQCLE EELKPLEEVL NLAQSKNFHL RPRDLISNIN VIVLELKGSE TTFMCEYADE TATIVEFLNR WITFCQSIIS TLT
• Endotoxin: Less than 1.0 EU/µg of rHuIL-2 as determined by LAL method.
• Purity: > 97 % by SDS-PAGE and HPLC analyses.
• Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  12 months from date of receipt, -20 to -70 centigrade as supplied.
  1 month, 2 to 8 centigrade under sterile conditions after reconstitution.
  3 months, -20 to -70 centigrade under sterile conditions after reconstitution.
• Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled H2O to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 centigrade. Further dilutions should be made in appropriate buffered solutions. Do not reconstitute in cell culture media directly.

Gene Information

• Gene Name: IL2 interleukin 2 [ Homo sapiens (human) ]
• Official Symbol: IL2
• Synonyms: IL-2; TCGF; lymphokine
• Gene ID: 3558
• mRNA Refseq: NM_000586.4
• Protein Refseq: NP_000577.2
• MIM: 147680
• UniProt ID: P60568