Human CD28 Antibody

Cat: 11524-H001
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All CD28 Reagents
Human CD28 Antibody ( antibody) General Information
Product name
Human CD28 Antibody
Validated applications
Species reactivity
Reacts with: Human
Human CD28
Human IgG2 Clone #H001
0.2 μm filtered solution in Histidine and Arginine buffer containing 120mM NaCl, 0.02% Tween 80, pH6.0
< 0.5 EU/mg
This antibody is shipped as liquid solution at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -80℃. Preservative-Free. Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles.
Human CD28 Antibody ( antibody) Validated Applications
Application Dilution Notes
FCM 0.5-2 μg/Test  
Application Notes
Agonist Activity (Func/A) Agonist Activity – Human CD28 antibody induce IL2 secretion of the CD4+ T cells. The activating titer (EC50) is typically 0.15­0.6 μg/mL in the presence of 2 μg/mL Human CD3 (humanized OKT3) antibody(10977-H001) coated on the cell culture plate.

**********Please Note: Optimal concentrations/dilutions should be determined by the end user.**********

Human CD28 Antibody ( antibody) Images
Human CD28/TP44 Flow Cytometry (FC) 5569
The staining effect of Human CD28 antibody to CD28 of Human Peripheral Blood Lymphocytes by Flow cytometric analysis.
A: Lymphocytes were stained with PE-conjugated humanized CD28 antibody.
B: The binding effect of PE-conjugated human CD28 antibody(Red histograms) in the lymphocytes can be blocked by pre-incubation of the CD28 antibody (BD, 555725) for 20min (blue histograms).
Human CD28/TP44 Functional Assay (Agonist Activity) 5583
Effect of human CD28 antibody on stimulating IL-2 secretion of CD4 T cells co-activated with CD3 antibody. The isolated CD4+ T cells (1e5/well) were cultured in the 96-well cell plates pre-coated with 2 μg/mL human CD3 (humanized OKT3) antibody (GMP-10977-H001) (100 μL/well) in the culture medium containing serial dilutions of CD28 antibody. 48 hours later, IL-2 secretion in the medium was measured by IL-2 Quantitative ELISA Kit.
Human CD28/TP44 Flow Cytometry (FC) 5605
CD28+ T cell staining of lymphocytes using human CD28 antibody by Flow cytometric analysis.
Lymphocytes were stained with PE-conjugated humanized CD28 antibody and CD19-APC (BD, 555415).
Human CD28 Antibody Alternative Names
Anti-Tp44 Antibody
CD28 Background Information

CD28 (Cluster of Differentiation 28) is a disulphide-bonded glycoprotein belonging to the immunoglobulin (Ig) superfamily, and structurally consists of a single Ig V-like extracellular domain, a transmembrane domain and an intracellular domain. Mouse CD28 is constitutively expressed on the surface of all murine T cells and on developing thymocytes as disulfide-linked homodimers or as monomers. CD28 can binds the B7-1 and B7-2 ligand, and together perform important functions in the T and B cell response pathways. B7/CD28 family members, which can augment or antagonize T-cell receptor signaling, in the regulation of central and peripheral T-cell tolerance. CD28 is thus involved in T-cell activation, the induction of cell proliferation and cytokine production and promotion of T-cell survival.

Immune Checkpoint
Immune Checkpoint Detection: Antibodies   Immune Checkpoint Detection: ELISA Antibodies   Immune Checkpoint Detection: IHC Antibodies   Immune Checkpoint Detection: FCM Antibodies   Immune Checkpoint Detection: WB Antibodies
Immune Checkpoint Targets   Co-stimulatory Immune Checkpoint Targets

Immunotherapy   Cancer Immunotherapy   Targeted Therapy

Full Name
CD28 molecule
  • Keir ME, et al. (2005) The B7/CD28 costimulatory family in autoimmunity. Immunol Rev. 204: 128-43.
  • Sansom DM, et al. (2006) The role of CD28 and cytotoxic T-lymphocyte antigen-4 (CTLA-4) in regulatory T-cell biology. Immunol Rev. 212: 131-48.
  • Bjrgo E, et al. (2010) Novel mechanism of signaling by CD28. Immunol Lett. 129(1): 1-6.
  • Product Description Host Clonality Application Catalog# (PDF)
    Anti-CD28 Antibody Mouse Monoclonal ELISA 80302-MM04
    Anti-CD28 Antibody Rabbit Polyclonal ELISA 80302-T16
    Anti-CD28 Antibody Rabbit Polyclonal ELISA 50103-RP01
    Anti-CD28 Antibody Rabbit Polyclonal WB,ELISA 50103-T48
    Anti-CD28 Antibody Rabbit Polyclonal ELISA,IHC-P 50103-RP02
    Anti-CD28 Antibody Rabbit Monoclonal ELISA,FCM 11524-R007
    Anti-CD28 Antibody (FITC) Rabbit Monoclonal FCM 11524-R007-F
    Anti-CD28 Antibody (PerCP) Rabbit Monoclonal FCM 11524-R007-C
    Anti-CD28 Antibody Rabbit Polyclonal ELISA 11524-RP01
    Anti-CD28 Antibody Rabbit Polyclonal ELISA 11524-RP02
    Anti-CD28 Antibody Mouse Monoclonal ELISA(Det) 11524-MM04
    Anti-CD28 Antibody Mouse Monoclonal ELISA,ELISA(Cap) 11524-MM06
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