Skip to main content

Human CD28 DuoSet ELISA

R&D Systems, part of Bio-Techne | Catalog # DY342-05

R&D Systems, part of Bio-Techne
Catalog #
Availability
Size / Price
Qty
Loading...
DY342-05

Ancillary Products Available

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

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

Label

HRP

Scientific Data Images for Human CD28 DuoSet ELISA

Human CD28 ELISA Standard Curve

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 Tcells and on developing thymocytes.

Alternate Names

CD28

Entrez Gene IDs

940 (Human); 12487 (Mouse); 102146670 (Cynomolgus Monkey)

Gene Symbol

CD28

Additional CD28 Products

Product Documents for Human CD28 DuoSet ELISA

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human CD28 DuoSet ELISA

For research use only

Loading...
Loading...
Loading...