CD28 antibody | E18

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Mouse anti Mouse CD28:Alexa Fluor® 647

Mouse anti Mouse CD28:FITC

Mouse anti Mouse CD28:Low Endotoxin

Mouse anti Mouse CD28:RPE

Product Type
Monoclonal Antibody
Clone
E18
Isotype
IgG2b
Product CodeApplicationsDatasheetMSDSPack SizeList PriceQuantity
MCA2473A647 F 100 Tests/1ml
MCA2473F F 0.1 mg
MCA2473EL F FN 0.5 mg
MCA2473PET F 25 Tests
MCA2473PE F 100 Tests
Mouse anti Mouse CD28 antibody, clone E18 recognizes murine CD28, a co-stimulatory cell surface molecule expressed by T cell subsets. Clone E18 has been shown to be able to stimulate murine T lymphocytes in combination with anti-mouse CD3.

Product Details

Target Species
Mouse
Product Form
Purified IgG conjugated to Alexa Fluor® 647 - liquid
Product Form
Purified IgG conjugated to Fluorescein Isothiocyanate Isomer 1 (FITC) - liquid
Product Form
Purified IgG - liquid
Product Form
Purified IgG conjugated to R. Phycoerythrin (RPE) - lyophilized
Reconstitution
Pack Size: 25 Tests
Reconstitute in 0.25 ml disilled water
Pack Size: 100 Tests
Reconstitute with 1ml distilled water
Preparation
Purified IgG prepared by affinity chromatography on Protein G from tissue culture supernatant
Preparation
Purified IgG prepared by affinity chromatography on Protein G from tissue culture supernatant
Preparation
Purified IgG prepared by affinity chromatography on Protein G from tissue culture supernatant
Preparation
Purified IgG prepared by affinity chromatography on Protein G from tissue culture supernatant
Buffer Solution
Phosphate buffered saline
Buffer Solution
Phosphate buffered saline
Buffer Solution
Phosphate buffered saline
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
None present.
Preservative Stabilisers
0.09% Sodium Azide
1% Bovine Serum Albumin
Preservative Stabilisers
None present.
Preservative Stabilisers
5% Sucrose
Immunogen
Alternate immunisation with A20 cells expressing mCD28 and recombinant mCD28Ig.
Approx. Protein Concentrations
IgG concentration 0.05 mg/ml
Approx. Protein Concentrations
IgG concentration 0.1mg/ml
Approx. Protein Concentrations
IgG concentration 1.0 mg/ml
Fusion Partners
Spleen cells from immunised CD28-/-knockout mice were fused with cells of the X63Ag8.653 myeloma cell line.

Storage Information

Storage
Store at +4oC or at -20oC if preferred.
Storage in frost-free freezers is not recommended.
This product should be stored undiluted. This product is photosensitive and should be protected from light.
Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.
Storage
Store at +4oC or at -20oC if preferred.
Storage in frost-free freezers is not recommended.
This product should be stored undiluted. This product is photosensitive and should be protected from light.
Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.
Storage
Store at -20oC only.
Storage in frost-free freezers is not recommended.
This product should be stored undiluted. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.
Storage
Store at +4oC. DO NOT FREEZE.
This product should be stored undiluted. This product is photosensitive and should be protected from light. Should this product contain a precipitate we recommend microcentrifugation before use.
Shelf Life
18 months from date of despatch.
Shelf Life
18 months from date of despatch.
Shelf Life
18 months from date of despatch.
Shelf Life
12 months from date of reconstitution.

More Information

UniProt
P31041 Related reagents
Entrez Gene
Cd28 Related reagents
GO Terms
GO:0002863 positive regulation of inflammatory response to antigenic stimulus
GO:0016021 integral to membrane
GO:0006955 immune response
GO:0008624 induction of apoptosis by extracellular signals
GO:0009897 external side of plasma membrane
GO:0031295 T cell costimulation
GO:0045060 negative thymic T cell selection
GO:0045086 positive regulation of interleukin-2 biosynthetic process
GO:0045840 positive regulation of mitosis
GO:0045944 positive regulation of transcription from RNA polymerase II promoter
GO:0046641 positive regulation of alpha-beta T cell proliferation
GO:0048304 positive regulation of isotype switching to IgG isotypes
Acknowledgements
This product is provided under an intellectual property licence from Life Technologies Corporation. The transfer of this product is contingent on the buyer using the purchase product solely in research, excluding contract research or any fee for service research, and the buyer must not sell or otherwise transfer this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; (c) manufacturing or quality assurance or quality control, or (d) resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad CA 92008 USA or outlicensing@thermofisher.com
Regulatory
For research purposes only

Applications of CD28 antibody

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Flow Cytometry Neat 1/5
Flow Cytometry Neat 1/5
Flow Cytometry 1/50 1/100
Functional Assays
Flow Cytometry Neat 1/10
Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
Flow Cytometry
Use10ul of the suggested working dilution to label 106 cells in 100ul.
Flow Cytometry
Use 10ul of the suggested working dilution to label 106 cells in 100ul.
Flow Cytometry
Use10ul of the suggested working dilution to label 106 cells in 100ul.
Flow Cytometry
Use10ul of the suggested working dilution to label 106 cells in 100ul.

Secondary Antibodies Available

Description Product Code Pack Size Applications List Price Quantity
Human anti Mouse IgG2b:FITC HCA038F 0.1 mg F
Human anti Mouse IgG2b:HRP HCA038P 0.1 mg E
Goat anti Mouse IgG (H/L):Alk. Phos. (Multi Species Adsorbed) STAR117A 0.5 mg E WB
Goat anti Mouse IgG (H/L):DyLight®488 (Multi Species Adsorbed) STAR117D488GA 0.1 mg F IF
Goat anti Mouse IgG (H/L):DyLight®549 (Multi Species Adsorbed) STAR117D549GA 0.1 mg F IF WB
Goat anti Mouse IgG (H/L):DyLight®649 (Multi Species Adsorbed) STAR117D649GA 0.1 mg F IF
Goat anti Mouse IgG (H/L):DyLight®680 (Multi Species Adsorbed) STAR117D680GA 0.1 mg F WB
Goat anti Mouse IgG (H/L):DyLight®800 (Multi Species Adsorbed) STAR117D800GA 0.1 mg F IF WB
Goat anti Mouse IgG (H/L):FITC (Multi Species Adsorbed) STAR117F 0.5 mg F
Goat anti Mouse IgG (H/L):HRP (Multi Species Adsorbed) STAR117P 0.5 mg E WB
Goat anti Mouse IgG (Fc):FITC STAR120F 1 mg C F
Goat anti Mouse IgG (Fc):HRP STAR120P 1 mg E WB
Rabbit F(ab')2 anti Mouse IgG:RPE STAR12A 1 ml F
Rabbit F(ab')2 anti Mouse IgG:HRP (Human Adsorbed) STAR13B 1 mg C E P RE WB
Goat anti Mouse IgG:FITC (Rat Adsorbed) STAR70 0.5 mg F
Goat anti Mouse IgG:RPE (Rat Adsorbed) STAR76 1 ml F
Goat anti Mouse IgG:HRP (Rat Adsorbed) STAR77 0.5 mg C E P
Goat anti Mouse IgG/A/M:Alk. Phos. STAR87A 1 mg C E WB
Goat anti Mouse IgG/A/M:HRP (Human Adsorbed) STAR87P 1 mg E
Rabbit F(ab')2 anti Mouse IgG:Dylight®800 STAR8D800GA 0.1 mg F IF WB
Rabbit F(ab')2 anti Mouse IgG:FITC STAR9B 1 mg F

Useful Reagents Available

Description Product Code Pack Size Applications List Price Quantity
Mouse Seroblock FcR BUF041A 0.1 mg F
Mouse Seroblock FcR BUF041B 0.5 mg F
Mouse Seroblock FcR BUF041A 0.1 mg F
Mouse Seroblock FcR BUF041B 0.5 mg F
Mouse Seroblock FcR BUF041A 0.1 mg F
Mouse Seroblock FcR BUF041B 0.5 mg F

Product Specific References

References for CD28 antibody

  1. Dennehy, K.M. et al. (2006) Cutting edge: monovalency of CD28 maintains the antigen dependence of T cell costimulatory responses.
    J Immunol. 176 (10): 5725-9.
  2. Beyersdorf, N. et al. (2008) Protection from graft-versus-host disease with a novel B7 binding site-specific mouse anti-mouse CD28 monoclonal antibody.
    Blood. 112 (10): 4328-36.
  3. Gogishvili, T. et al. (2012) Interruption of CD28-mediated costimulation during allergen challenge protects mice from allergic airway disease.
    J Allergy Clin Immunol. 130 (6): 1394-403.e4.
  4. Pletinckx, K. et al. (2015) Immature dendritic cells convert anergic nonregulatory T cells into Foxp3- IL-10+ regulatory T cells by engaging CD28 and CTLA-4.
    Eur J Immunol. 45 (2): 480-91.