RecombinantIL-2, Human

• Description:

  Interleukin-2 (IL-2) is a Oglycosylated, four α-helix bundle cytokine that has potent stimulatory activity for antigen-activated T cells. 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. IL-2 stimulates growth and differentiation of B-cells, NK cells, lymphokine activated killer cells, monocytes, macrophages and oligodendrocytes.

• Endotoxin:

  < 0.2 EU/μg, determined by LAL method.

• Purity:

  > 95% as analyzed by SDS-PAGE.

• Bioactivity:

  ED50 < 2ng/ml, measured in a cell proliferation assay using CTLL-2 cells.

• Reconstitution:

  Reconstituted in ddH2O or PBS at 100 μg/ml.

• Molecular Weight:

  15~16 kDa, observed by reducing SDS-PAGE.

• Storage Conditions:

  Lyophilized recombinant Human Interleukin-2 (IL-2) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, Human Interleukin-2 (IL-2) should be stable up to 1 week at 4°C or up to 2 months at -20°C.

• Appearance:

  Sterile Filtered White lyophilized (freeze-dried) powder.

• Formulation:

  Lyophilized after extensive dialysis against PBS..

• Host or Source:

  CHO

• Recommended Usage:

  This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. For research use only.

• CAS Number:

  9000-83-3

• AA Sequence:

  APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHL RPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT