Human CD28 DuoSet ELISA
R&D Systems, part of Bio-Techne | Catalog # DY342-05
Key Product Details
Assay Type
Solid Phase Sandwich ELISA
Assay Range
156-10000 pg/mL
Sample Type
Cell culture supernates, serum, and plasma
Note: Diluents for complex matrices, such as serum and plasma, should be evaluated prior to use in this DuoSet
Note: Diluents for complex matrices, such as serum and plasma, should be evaluated prior to use in this DuoSet
Reactivity
Human
Human CD28 DuoSet ELISA 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
Product Summary for Human CD28 DuoSet ELISA
This DuoSet ELISA Development kit contains the basic components required for the development of sandwich ELISAs to measure natural and recombinant human CD28. The suggested diluent is suitable for the analysis of most cell culture supernate, cell lysate, serum, and plasma samples. Diluents for complex matrices, such as cell lysates, serum, and plasma, should be evaluated prior to use in this DuoSet.
Product Specifications
Assay Format
96-well strip plate (sold separately)
Detection Method
Colorimetric ELISA - 450nm (TMB)
Conjugate
Biotin
Specificity
Label
HRP
Scientific Data Images for Human CD28 DuoSet ELISA
Human CD28 ELISA Standard Curve
Kit Contents for Human CD28 DuoSet ELISA
- Capture Antibody
- Detection Antibody
- Recombinant Standard
- Streptavidin conjugated to horseradish-peroxidase (Streptavidin-HRP)
Other Reagents Required
DuoSet Ancillary Reagent Kit 2 (5 plates): (Catalog # DY008) 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 # DY006), 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 # WA126), or 0.05% Tween® 20 in PBS, pH 7.2-7.4
Reagent Diluent: (Catalog # DY995), 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 # DY999)
Stop Solution: 2 N H2SO4 (Catalog # DY994)
Microplates: R&D Systems (Catalog # DY990)
Plate Sealers: ELISA Plate Sealers (Catalog # DY992)
Preparation and Storage
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: CD28
CD28 and CTLA-4, together with their ligands, B7-1 and B7-2, constitute one of the dominant costimulatory pathways that regulate T and B cell responses. CD28 and CTLA-4 are structurally homologous molecules that are members of the immunoglobulin (Ig) gene superfamily. Mouse CD28 is expressed constitutively on virtually 100% of mouse T cells and on developing thymocytes.
Alternate Names
CD28
Gene Symbol
CD28
Additional CD28 Products
Product Documents for Human CD28 DuoSet ELISA
Product Specific Notices for Human CD28 DuoSet ELISA
For research use only
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