Product Information

Contents: Recombinant Human IL-2 Single-Use ELISA RSG Standard
Catalog Number: 39-8029
Sizes: 4 pack
Formulation: Sterile liquid; phosphate buffered saline, pH 7.2, 150 mM NaCl, with 1.0% BSA. 0.22 µm filtered.
Storage Conditions: The frozen cytokine standard is already aliquoted at 20 µl per vial. Upon receipt, frozen cytokine standard should be immediately stored at -80°C; stable for at least 12 months. After thawing, quick-spin vial prior to opening. Do not re-aliquot into smaller fractions. These are single use vials. Use one time and discard.
Handling Conditions: For best recovery, always quick-spin vial prior to opening. For dilution of current stock, use ELISA Assay Diluent.
Source: E. coli
Purity: Greater than 98%, as determined by SDS-PAGE

Available Formats of This Product
Cat. No.	Format	Excite (nm)	Emit (nm)	Reported Applications
14-8029	Recombinant Human IL-2 (Interleukin-2, IL2)	N/A	N/A	BA
34-8029	Carrier-Free Recombinant Human IL-2 (Interleukin-2, IL2)	N/A	N/A	BA ELISA
39-8029	Single-Use ELISA RSG Standard Recombinant Human IL-2 (Interleukin-2, IL2)	N/A	N/A	ELISA

Questions? Please consult our answers to frequently asked questions at http://www.ebioscience.com/faq.

Description

Human IL-2 (also known as TCGF) is a ~15 kDa factor produced mainly by activated CD4⁺ T cells. IL-2 induces cell cycle progression of resting cells in an antigen non-specific manner and allows clonal expansion of activated T cells. IL-2 also acts on activated B cells, monocytes, NK, LAK cells, and on oligodendroglial cells in vitro. In addition, IL-2 plays a role in hematopoiesis, tumor surveillance and anti-inflammatory reactions and hence is a central regulator of the immune response. Non-glycosylated IL-2 is biologically active.

Applications Reported

For research use only, not for diagnostic or therapeutic use. Recombinant human IL-2 is biologically active. The intended use of the Recombinant Human IL-2 Single-Use ELISA RSG Standard is as a standard for human IL-2 Ready-SET-Go! ELISA and human IL-2 matched antibody pair ELISA. Typically the standard is run in a series of 7 doubling dilutions from the ‘top’ standard described below.

Instructions for use:
For Ready-SET-Go! ELISA Set (TMB substrate). Dilution: Add 5 ul of standard solution to 10 ml of assay diluent to prepare the top standard solution (500 pg/ml).
For matched antibody pair ELISA (ABTS or Super AquaBlue substrate). Dilution: Add 10 ul of standard solution to 10 ml of assay diluent to prepare the top standard solution (1000 pg/ml).

Note: These are single-use vials. Use one time and discard. Dilute as suggested above, not difficult-to-measure fractions of the suggested volumes (e.g., not 0.5 ul in 1.0 ml) or recovery may not be accurate. Use within 6 hours of dilution to top standard concentration.

Applications Tested

This cytokine standard has been calibrated and tested by sandwich ELISA using the human IL-2 ELISA pair (MQ1-17H12/polyclonal antibody).