GMP-TL 202 Recombinant Human IL-15 Protein, 50μg
Beschreibung
Product Information
Protein sequence: A DNA sequence encoding IL-15 (P40933) and IL-15RA (Q13261) was expressed with the C-terminal fused Fc region of human IgG1.
Expression Host: HEK293 cells
QC Testing: Purity > 95 % as determined by SDS-PAGE
Activity: The ED50 as determined by the dose-dependent stimulation of the proliferation of CTLL-2 cells was found to be 0.2~3ng/mL. The specific activity of recombinant human IL-15 is > 5×106 IU/mg, which is calibrated against the human IL-15 WHO International Standard (NIBSC code:95/554).
Endotoxin: < 0.01 EU per μg of the protein as determined by the LAL method
Molecular Mass: The recombinant human IL-15 predicts a molecular mass of 12.8 kD and 33kD
Formulation: Lyophilized from sterile PBS, pH 7.4. Normally 6 % mannitol are added as protectants before lyophilization
Stability & Storage:
Lyophilized preparation can be stored at -20 ℃.
6 months at -20 ℃ under sterile conditions after reconstitution.
12 months at -80 ℃ under sterile conditions after reconstitution.
Recommend to aliquot the protein into smaller quantities after reconstituting with water for injection, normal saline or PBS.
Avoid repeated freeze-thaw cycles.