CD28 Antibodies
Cluster of differentiation 28 (CD28) is a 44 kDa disulfide-linked homodimeric surface glycoprotein that functions in T cell activation. Human CD28 protein is 220 amino acids (aa) in length with a calculated molecular weight of 25 kDa. CD28 is a costimulatory molecule that provides signals critical for naive T cell stimulation, cytokine production, proliferation, and survival. We offer CD28 antibodies that have been featured in 45+ publications. Browse our catalog of recombinant monoclonal, monoclonal, polyclonal, and CD28-conjugated antibodies. Validated research applications for these CD28-antibodies include Blocking/Neutralizing, CyTOF-ready, ELISA, Flow Cytometry, Functional, ICC, Immunofluorescence, IHC-Frozen, IHC-Paraffin, Immunoprecipitation, and Western Blot. Our CD28 antibodies are reactive in many species such as Human, Mouse, Rat, Bovine, Porcine, Primate, and Sheep. Choose the anti-CD28 antibody best suited for your research needs by viewing the technical details, images, references, reviews, and related products. Each CD28 antibody is fully covered by Novus’ Guarantee+ to give you peace of mind and support when you need it.
Alternate Names for CD28 Antibodies
anti-CD28 antibody, anti-CD28 antigen (Tp44) antibody, anti-CD28 antigen antibody, anti-CD28 molecule antibody, anti-MGC138290 antibody, anti-T-cell-specific surface glycoprotein CD28 antibody, anti-Tp44 antibody
41 Results for "cd28" in Primary Antibodies
![Flow Cytometry: CD28 Antibody (CD28.2) [NBP1-79126] - Surface staining pattern of human peripheral blood stained using anti-human CD28 (CD28.2) purified antibody (concentration in sample 1,6 ug/ml) GAM APC.](http://images.novusbio.com/fullsize/CD28-Antibody-CD28-2-Flow-Cytometry-NBP1-79126-img0009.jpg "Flow Cytometry: CD28 Antibody (CD28.2) [NBP1-79126] - Surface staining pattern of human peripheral blood stained using anti-human CD28 (CD28.2) purified antibody (concentration in sample 1,6 ug/ml) GAM APC.")
![Flow Cytometry: CD28 Antibody (CD28.2) [NBP1-79126] - Surface staining of human peripheral blood leukocytes with anti-human CD28 (CD28.2) purified.](http://images.novusbio.com/fullsize/CD28-Antibody-CD28-2-Flow-Cytometry-NBP1-79126-img0001.jpg)
![Flow Cytometry: CD28 Antibody (CD28.2) [NBP1-79126] - Surface staining of human peripheral blood leukocytes with anti-human CD28 (CD28.2) PE.](http://images.novusbio.com/fullsize/CD28-Antibody-CD28-2-Flow-Cytometry-NBP1-79126-img0002.jpg)
![Flow Cytometry: CD28 Antibody (CD28.2) [NBP1-79126] - Surface staining of human peripheral blood leukocytes with anti-human CD28 (CD28.2) PerCP-CyTM5.5](http://images.novusbio.com/fullsize/CD28-Antibody-CD28-2-Flow-Cytometry-NBP1-79126-img0003.jpg)
![Flow Cytometry: CD28 Antibody (CD28.2) [NBP1-79126] - Surface staining of human peripheral blood leukocytes with anti-human CD28 (CD28.2) APC.](http://images.novusbio.com/fullsize/CD28-Antibody-CD28-2-Flow-Cytometry-NBP1-79126-img0004.jpg)
![Flow Cytometry: CD28 Antibody (CD28.2) [NBP1-79126] - Surface staining of human peripheral blood leukocytes with anti-human CD28 (CD28.2) PerCP.](http://images.novusbio.com/fullsize/CD28-Antibody-CD28-2-Flow-Cytometry-NBP1-79126-img0005.jpg)
![Flow Cytometry: CD28 Antibody (CD28.2) [NBP1-79126] - Surface staining of human peripheral blood leukocytes with anti-human CD28 (CD28.2) FITC.](http://images.novusbio.com/fullsize/CD28-Antibody-CD28-2-Flow-Cytometry-NBP1-79126-img0006.jpg)
![Flow Cytometry: CD28 Antibody (CD28.2) [NBP1-79126] - Surface staining of human peripheral blood leukocytes with anti-human CD28 (CD28.2) PE-CyTM7.](http://images.novusbio.com/fullsize/CD28-Antibody-CD28-2-Flow-Cytometry-NBP1-79126-img0007.jpg)
![Flow Cytometry: CD28 Antibody (CD28.2) [NBP1-79126] - Separation of human CD28 positive lymphocytes (red-filled) from neutrophil granulocytes (black-dashed) in flow cytometry analysis (surface staining) of human peripheral whole blood stained using anti-human CD28 (CD28.2) purified antibody (concentration in sample 1,6 ug/ml) GAM APC.](http://images.novusbio.com/fullsize/CD28-Antibody-CD28-2-Flow-Cytometry-NBP1-79126-img0008.jpg)
![Immunohistochemistry-Paraffin: CD28 Antibody [NBP2-57015] - Analysis in human lymph node and liver tissues. Corresponding CD28 RNA-seq data are presented for the same tissues.](http://images.novusbio.com/fullsize/CD28-Antibody-Immunohistochemistry-Paraffin-NBP2-57015-img0008.jpg "<b>Orthogonal Strategies Validation. </b>Immunohistochemistry-Paraffin: CD28 Antibody [NBP2-57015] - Analysis in human lymph node and liver tissues. Corresponding CD28 RNA-seq data are presented for the same tissues.")
![<b>Orthogonal Strategies Validation. </b>Immunohistochemistry-Paraffin: CD28 Antibody [NBP2-57015] - Staining of human cerebral cortex shows no positivity in neuronal cells as expected.](http://images.novusbio.com/fullsize/CD28-Antibody-Immunohistochemistry-Paraffin-NBP2-57015-img0010.jpg)
![Immunohistochemistry-Paraffin: CD28 Antibody [NBP2-57015] - Staining of human liver shows no positivity in hepatocytes.](http://images.novusbio.com/fullsize/CD28-Antibody-Immunohistochemistry-Paraffin-NBP2-57015-img0006.jpg)
![Immunohistochemistry-Paraffin: CD28 Antibody [NBP2-57015] - Staining of human tonsil shows moderate membranous positivity in lymphocytes.](http://images.novusbio.com/fullsize/CD28-Antibody-Immunohistochemistry-Paraffin-NBP2-57015-img0007.jpg)
![Immunohistochemistry-Paraffin: CD28 Antibody [NBP2-57015] - Staining of human lymph node shows moderate membranous positivity in lymphocytes.](http://images.novusbio.com/fullsize/CD28-Antibody-Immunohistochemistry-Paraffin-NBP2-57015-img0009.jpg)
![Flow Cytometry: CD28 Antibody (YTH913.12) [NB100-64867] - Analysis using the PE conjugate of NB100-64867. Staining of human peripheral blood lymphocytes.](http://images.novusbio.com/fullsize/CD28-Antibody-YTH913-12-Flow-Cytometry-NB100-64867-img0007.jpg "Flow Cytometry: CD28 Antibody (YTH913.12) [NB100-64867] - Analysis using the PE conjugate of NB100-64867. Staining of human peripheral blood lymphocytes.")
![Flow Cytometry: CD28 Antibody (YTH913.12) [NB100-64867] - Staining of human peripheral blood lymphocytes with Rat anti Human.](http://images.novusbio.com/fullsize/CD28-Antibody-YTH913-12-Flow-Cytometry-NB100-64867-img0003.jpg)
![Flow Cytometry: CD28 Antibody (YTH913.12) [NB100-64867] - Staining of human peripheral blood lymphocytes with Rat anti Human.](http://images.novusbio.com/fullsize/CD28-Antibody-YTH913-12-Flow-Cytometry-NB100-64867-img0004.jpg)
![Flow Cytometry: CD28 Antibody (YTH913.12) [NB100-64867] - Analysis using the Biotin conjugate of NB100-64867. Staining of human peripheral blood lymphocytes.](http://images.novusbio.com/fullsize/CD28-Antibody-YTH913-12-Flow-Cytometry-NB100-64867-img0006.jpg)
![Immunocytochemistry/Immunofluorescence: CD28 Antibody (204.12) [NBP2-44760] - Immunofluorescent staining of Jurkat cells using CD28 Antibody (204.12) followed by goat anti-Mouse IgG conjugated to CF488 (green). Red Dot is used to label nuclei (red).](http://images.novusbio.com/fullsize/CD28-Antibody-204-12-Immunocytochemistry-Immunofluorescence-NBP2-44760-img0001.jpg "Immunocytochemistry/Immunofluorescence: CD28 Antibody (204.12) [NBP2-44760] - Immunofluorescent staining of Jurkat cells using CD28 Antibody (204.12) followed by goat anti-Mouse IgG conjugated to CF488 (green). Red Dot is used to label nuclei (red).")
![Flow Cytometry: CD28 Antibody (204.12) [NBP2-44760] - Flow Cytometric Analysis of paraformaldehyde-fixed Jurkat cells using CD28 Antibody (204.12) followed by goat anti-Mouse IgG-CF488 (Blue); Isotype control (Red).](http://images.novusbio.com/fullsize/CD28-Antibody-204-12-Flow-Cytometry-NBP2-44760-img0002.jpg)