• Assay Type

  Solid Phase Sandwich ELISA

• Format

  96-well strip plate

• Sample Type & Volume Required

  100 µL

• Range

  15.60 - 1,000 pg/mL

• Sufficient Materials

  For five or fifteen 96-well plates*

• Specificity

  Please see the

* Provided that the recommended microplates, buffers, diluents, substrates and solutions are used, and the assay is run as summarized in the Assay Procedure provided.

Ancillary Reagent Kit Available  

DY008, DuoSet ELISA Ancillary Reagent Kit 2 -

This DuoSet ELISA Development kit contains the basic components required for the development of sandwich ELISAs to measure natural and recombinant human IL-3. The suggested diluent is suitable for the analysis of most cell culture supernate samples. Diluents for complex matrices, such as serum and plasma, should be evaluated prior to use in this DuoSet.

Product Features

• Optimized capture and detection antibody pairings with recommended concentrations save lengthy development time

• Development protocols are provided to guide further assay optimization

• Assay can be customized to your specific needs

• Economical alternative to complete kits

Kit Content

• Capture Antibody

• Detection Antibody

• Recombinant Standard

• Streptavidin conjugated to horseradish-peroxidase (Streptavidin-HRP)

Other Reagents Required

DuoSet Ancillary Reagent Kit 2 (5 plates): (Catalog # ) containing 96 well microplates, plate sealers, substrate solution, stop solution, plate coating buffer (PBS), wash buffer, and Reagent Diluent Concentrate 2.

The components listed above may be purchased separately:

PBS: (Catalog # ), or 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na₂HPO₄, 1.5 mM KH₂PO₄, pH 7.2 - 7.4, 0.2 µm filtered

Wash Buffer: (Catalog # ), or 0.05% Tween^® 20 in PBS, pH 7.2-7.4    

Reagent Diluent: (Catalog # ), or 1% BSA in PBS, pH 7.2-7.4, 0.2 µm filtered

Substrate Solution: 1:1 mixture of Color Reagent A (H₂O₂) and Color Reagent B (Tetramethylbenzidine) (Catalog # )

Stop Solution: 2 N H₂SO₄ (Catalog # )

Microplates: R&D Systems (Catalog # )

Plate Sealers: ELISA Plate Sealers (Catalog # )

Preparation and Storage

• Storage

  Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: IL-3

Interleukin-3 (IL-3) is a secreted cytokine that stimulates the proliferation and differentiation of pluripotent hematopoietic stem cells and various lineage-committed progenitors. It also regulates the activation of mature mast cells, basophils, eosinophils, and macrophages. It is produced by activated T cells, thymic epithelial cells, activated mast cells, keratinocytes, neurons, and astrocytes. IL-3 signals through a receptor complex that contains IL-3 R alpha/CD123 and the common beta chain which is also a component of the receptors for IL-5 and GM-CSF. Receptors for IL-3 are present on bone marrow progenitors, macrophages, mast cells, eosinophils, megakaryocytes, basophils, and various myeloid leukemic cells. Human IL-3 does not show activity on mouse cells.

• Entrez Gene IDs:

  3562 (Human); 16187 (Mouse); 24495 (Rat);

• Long Name:

  Interleukin 3

• Aliases:

  Hematopoietic growth factor; IL3; IL-3; IL-3MGC79398; interleukin 3 (colony-stimulating factor, multiple); interleukin-3; Mast cell growth factor; mast-cell growth factor; MCGFMGC79399; MULTI-CSF; multilineage-colony-stimulating factor; Multipotential colony-stimulating factor; P-cell stimulating factor; P-cell-stimulating factor