CD4 Antibodies
CD4 (cluster of differentiation 4) is a single chain type I transmembrane glycoprotein belonging to the immunoglobin (Ig) superfamily. CD4 has a theoretical molecular weight of 55 kDa and is expressed on most thymocytes and a subset of mature T lymphocytes. CD4 functions in T cell development and has a diverse role in innate immunity. We offer highly rated antibodies to detect CD4 that have been cited in 80+ publications. Browse our extensive catalog for recombinant monoclonal antibodies, monoclonal antibodies, polyclonal antibodies, and CD4-conjugated antibodies. Validated research applications for our CD4 antibodies include Blocking/Neutralizing, CyTOF-ready, ELISA, Enzyme Immunoassay, Flow Cytometry, ICC, Immunofluorescence, IHC-Frozen, IHC-Paraffin, Immunoprecipitation, Simple Western, and Western Blot. Our CD4 antibodies are used in a variety of model species including Human, Mouse, Rat, Bovine, Chicken, Feline, Goat, Primate, Rabbit, Sheep, and more. Choose the anti-CD4 antibody best suited for your research needs by viewing the technical details, images, references, reviews, and related products. Each CD4 antibody is fully covered by Novus’ Guarantee+ to give you peace of mind and support when you need it.
Alternate Names for CD4 Antibodies
anti-CD4 antibody, anti-CD4 antigen (p55) antibody, anti-CD4 antigen antibody, anti-CD4 molecule antibody, anti-CD4 receptor antibody, anti-CD4mut antibody, anti-T-cell surface antigen T4/Leu-3 antibody, anti-T-cell surface glycoprotein CD4 antibody
81 Results for "cd4" in Primary Antibodies
![Immunohistochemistry: CD4 Antibody [NBP1-19371] - Increased CD3+ and CD4+ T-cell occurrence in the brainstem of SHR-72 transgenic rat model for tauopathies. (A-D) Immunofluorescence staining showed CD4+ T-cells in SHR-72 transgenic animals. (E- H) Immunofluorescence staining showed more perivascular than brain parenchyma infiltrating CD4+ T-cells in SHR-72 transgenic animals. PLoS One. 2019 May 23;14(5):e0217216. doi: 10.1371/journal.pone.0217216.](http://images.novusbio.com/fullsize/CD4-Antibody-Immunohistochemistry-NBP1-19371-img0017.jpg "Immunohistochemistry: CD4 Antibody [NBP1-19371] - Increased CD3+ and CD4+ T-cell occurrence in the brainstem of SHR-72 transgenic rat model for tauopathies. (A-D) Immunofluorescence staining showed CD4+ T-cells in SHR-72 transgenic animals. (E- H) Immunofluorescence staining showed more perivascular than brain parenchyma infiltrating CD4+ T-cells in SHR-72 transgenic animals. PLoS One. 2019 May 23;14(5):e0217216. doi: 10.1371/journal.pone.0217216.")
![Immunohistochemistry: CD4 Antibody [NBP1-19371] - DBZ inhibits the accumulation of CD4+ T cells and Th2 differentiation in the AAAs. (B) The representation of immunohistochemical staining for CD4+ in abdominal aorta from four groups (left). Bar graphs show the percentage of CD4+ positive cell areas (right; n=3 per group). Bar: 50 um.](http://images.novusbio.com/fullsize/CD4-Antibody-Immunohistochemistry-NBP1-19371-img0018.jpg)
![Western Blot: CD4 Antibody [NBP1-19371] - CD4 antibody was tested in the following cell lysates: 1) human spleen 2) human tonsil 3) human placenta 4) human kidney 5) human liver 6) mouse spleen 7) mouse placenta 8) rat placenta.](http://images.novusbio.com/fullsize/CD4-Antibody-Western-Blot-NBP1-19371-img0002.jpg)
![Immunocytochemistry/Immunofluorescence: CD4 Antibody [NBP1-19371] - CD4 antibody was tested in Jurkat cells with DyLight 488 (green). Nuclei were counterstained with DAPI (blue).](http://images.novusbio.com/fullsize/CD4-Antibody-Immunocytochemistry-Immunofluorescence-NBP1-19371-img0005.jpg)
![Flow Cytometry: CD4 Antibody - BSA Free [NBP1-19371] - An intracellular stain was performed on U-251 MG cells with CD4 Antibody NBP1-19371AF594 (blue) and a matched isotype control NBP2-24891 (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 2.5 ug/mL for 30 minutes at room temperature. Both antibodies were conjugated to Alexa Fluor 594.](http://images.novusbio.com/fullsize/CD4-Antibody---BSA-Free-Flow-Cytometry-NBP1-19371-img0023.jpg)
![Western Blot: CD4 Antibody [NBP1-19371] - Mouse spleen, 25ug total protein. Image from verified customer review.](http://images.novusbio.com/fullsize/CD4-Antibody-Western-Blot-NBP1-19371-img0007.jpg)
![Immunohistochemistry-Paraffin: CD4 Antibody [NBP1-19371] - Staining of paraffin-embedded mouse brain tissue. Photo courtesy of product review by verified customer.](http://images.novusbio.com/fullsize/CD4-Antibody-Immunohistochemistry-Paraffin-NBP1-19371-img0006.jpg)
![Immunohistochemistry-Paraffin: CD4 Antibody [NBP1-19371] - Analysis of a FFPE tissue section of mouse brain using CD4 antibody at 1:300 dilution with HRP-DAB detection and hematoxylin counterstaining. The antibody primarily generated a strong signal in the membranes of a subset of cells in the tested section.](http://images.novusbio.com/fullsize/CD4-Antibody-Immunohistochemistry-Paraffin-NBP1-19371-img0011.jpg)
![Immunohistochemistry-Paraffin: CD4 Antibody [NBP1-19371] - Analysis of a FFPE section of mouse spleen using CD4 antibody at 1:300 dilution with HRP-DAB detection and hematoxylin counterstaining. The antibody generated a strong signal in the membranes of a subset of cells in the spleen section and the staining showed punctate appearance in some cells.](http://images.novusbio.com/fullsize/CD4-Antibody-Immunohistochemistry-Paraffin-NBP1-19371-img0012.jpg)
![Immunohistochemistry-Frozen: CD4 Antibody [NBP1-19371] - Staining in mouse liver tissue.](http://images.novusbio.com/fullsize/CD4-Antibody-Immunohistochemistry-Frozen-NBP1-19371-img0013.jpg)
![Immunohistochemistry-Paraffin: CD4 Antibody [NBP1-19371] - Alcohol-fixed paraffin-embedded rat spleen tissue. Dilution 1:150. Image from verified customer review.](http://images.novusbio.com/fullsize/CD4-Antibody-Immunohistochemistry-Paraffin-NBP1-19371-img0014.jpg)
![Flow Cytometry: CD4 Antibody [NBP1-19371] - An intracellular stain was performed on Jurkat cells with CD4 Antibody NBP1-19371R (blue) and a matched isotype control (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 5 ug/mL for 30 minutes at room temperature. Both antibodies were conjugated to DyLight 550.](http://images.novusbio.com/fullsize/CD4-Antibody-Flow-Cytometry-NBP1-19371-img0015.jpg)
![Flow Cytometry: CD4 Antibody [NBP1-19371] - An intracellular stain was performed on Jurkat cells with CD4 Antibody NBP1-19371AF488 (blue) and a matched isotype control (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 10 ug/mL for 30 minutes at room temperature. Both antibodies were conjugated to Alexa Fluor 488.](http://images.novusbio.com/fullsize/CD4-Antibody-Flow-Cytometry-NBP1-19371-img0016.jpg)
![Flow Cytometry: CD4 Antibody [NBP1-19371] - An intracellular stain was performed on U937 cells with CD4 Antibody NBP1-19371AF594 (blue) and a matched isotype control (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 2.5 ug/mL for 30 minutes at room temperature. Both antibodies were conjugated to Alexa Fluor 594.](http://images.novusbio.com/fullsize/CD4-Antibody-Flow-Cytometry-NBP1-19371-img0021.jpg)
![Flow Cytometry: CD4 Antibody [NBP1-19371] - An intracellular stain was performed on U937 cells with CD4 Antibody NBP1-19371G (blue) and a matched isotype control (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 5 ug/mL for 30 minutes at room temperature. Both antibodies were conjugated to DyLight 488.](http://images.novusbio.com/fullsize/CD4-Antibody-Flow-Cytometry-NBP1-19371-img0022.jpg)
![Simple Western: CD4 Antibody [NBP1-19371] - Lane view shows a specific band for CD4 in 0.5 mg/ml of HeLa lysate. This experiment was performed under reducing conditions using the 12-230 kDa separation system.](http://images.novusbio.com/fullsize/CD4-Antibody-Simple-Western-NBP1-19371-img0009.jpg)
![Dual RNAscope ISH-IHC: CD4 Antibody [NBP1-19371] - IFNG mRNA (red) and CD4 protein (green) were detected in formalin-fixed paraffin-embedded tissue sections of human lung cancer. ACD's Integrated Co-Detection Workflow was performed using ACD RNAScope Probe Hs-IFNG and CD4 antibody at 1:100 dilution. Tissue was stained on Leica Bond RX using RNAscope (TM) 2.5 LS Reagent Kit-RED, BOND Polymer Refine Detection (DAB) and Hematoxylin (Cat. No. DS9800), BOND Polymer Refine Red Detection and Hematoxylin and RNAscope (TM) 2.5 LS Green Accessory Pack. Tissue was counterstained with 50% hematoxylin (blue).](http://images.novusbio.com/fullsize/CD4-Antibody-Dual-RNAscope-ISH-IHC-NBP1-19371-img0019.jpg)
![Dual RNAscope ISH-IHC: CD4 Antibody [NBP1-19371] - CCR5 mRNA (red) and CD4 protein (green) were detected in formalin-fixed paraffin-embedded tissue sections of human lung cancer. ACD's Integrated Co-Detection Workflow was performed using ACD RNAScope Probe Hs-CCR5 and CD4 antibody at 1:100 dilution. Tissue was stained on Leica Bond RX using RNAscope (TM) 2.5 LS Reagent Kit-RED, BOND Polymer Refine Detection (DAB) and Hematoxylin, BOND Polymer Refine Red Detection and Hematoxylin and RNAscope (TM) 2.5 LS Green Accessory Pack. Tissue was counterstained with 50% hematoxylin (blue).](http://images.novusbio.com/fullsize/CD4-Antibody-Dual-RNAscope-ISH-IHC-NBP1-19371-img0020.jpg)
![Flow Cytometry: CD4 Antibody (RPA-T4) [NBP2-25199] - Analysis using the Alexa Fluor (R) 700 conjugate of NBP2-27216. Staining of human PBMC. Image from verified customer review.](http://images.novusbio.com/fullsize/CD4-Antibody-RPA-T4-Flow-Cytometry-NBP2-25199-img0007.jpg "Flow Cytometry: CD4 Antibody (RPA-T4) [NBP2-25199] - Analysis using the Alexa Fluor (R) 700 conjugate of NBP2-27216. Staining of human PBMC. Image from verified customer review.")
![Flow Cytometry: CD4 Antibody (RPA-T4) [NBP2-25199] - Analysis using the PE conjugate of NBP2-27216. Staining of CD4 in human PBMC using anti-CD4 antibody. Image from verified customer review.](http://images.novusbio.com/fullsize/CD4-Antibody-RPA-T4-Flow-Cytometry-NBP2-25199-img0004.jpg)
![Flow Cytometry: CD4 Antibody (RPA-T4) [NBP2-25199] - Analysis using the FITC conjugate of NBP2-27216. Staining of CD4 in 1x10^6 human PBMC using 10 ul (0.1 ug) of was used to test this product. Propidium iodide negative lymphocyte population gated for analysis. Image using the Azide Free format of this antibody.](http://images.novusbio.com/fullsize/CD4-Antibody-RPA-T4-Flow-Cytometry-NBP2-25199-img0011.jpg)
![Flow Cytometry: CD4 Antibody (RPA-T4) [NBP2-25199] - Analysis using the DyLight 405 conjugate of NBP2-27216. Staining of CD4 in human PBMCs using anti-CD4 antibody. Image from verified customer review.](http://images.novusbio.com/fullsize/CD4-Antibody-RPA-T4-Flow-Cytometry-NBP2-25199-img0005.jpg)
![Flow Cytometry: CD4 Antibody (RPA-T4) [NBP2-25199] - Analysis using the PE conjugate of NBP2-27216. Staining of CD4 in 1x10^6 human PBMC using 10 ul (0.1 ug) of this antibody. Green represents isotype control; red represents anti-CD4 antibody. Image using the Azide Free format of this antibody.](http://images.novusbio.com/fullsize/CD4-Antibody-RPA-T4-Flow-Cytometry-NBP2-25199-img0009.jpg)
![Flow Cytometry: CD4 Antibody (RPA-T4) [NBP2-25199] - Analysis using the Allophycocyanin conjugate of NBP2-27216. Staining of CD4 in 1x10^6 human PBMC using 10 ul (0.1 ug) of was used to test this product. Propidium iodide negative lymphocyte population gated for analysis. Image using the Azide Free format of this antibody.](http://images.novusbio.com/fullsize/CD4-Antibody-RPA-T4-Flow-Cytometry-NBP2-25199-img0010.jpg)
![Immunohistochemistry-Frozen: CD4 Antibody (GK1.5) [NBP2-25191] - CD4 was detected in immersion fixed frozen sections of mouse intestine using Rat Anti-Mouse CD4 Monoclonal Antibody (Clone GK1.5) at 1 ug/mL overnight at 4 degrees C. Tissue was stained using the Anti-Rat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS017) and counterstained with hematoxylin (blue). Specific staining was localized to plasma membranes of lymphocytes.](http://images.novusbio.com/fullsize/CD4-Antibody-GK1-5-Immunohistochemistry-Frozen-NBP2-25191-img0005.jpg "Immunohistochemistry-Frozen: CD4 Antibody (GK1.5) [NBP2-25191] - CD4 was detected in immersion fixed frozen sections of mouse intestine using Rat Anti-Mouse CD4 Monoclonal Antibody (Clone GK1.5) at 1 ug/mL overnight at 4 degrees C. Tissue was stained using the Anti-Rat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS017) and counterstained with hematoxylin (blue). Specific staining was localized to plasma membranes of lymphocytes.")
![Flow Cytometry: CD4 Antibody (GK1.5) [NBP2-25191] - Analysis using the PE conjugate of NBP2-26585. Staining of CD4 in 10^6 BALB/c mouse splenocytes using 1 ug of this antibody ; red represents mouse CD4 this antibody. Image using the Azide Free format of this antibody.](http://images.novusbio.com/fullsize/CD4-Antibody-GK1-5-Flow-Cytometry-NBP2-25191-img0008.jpg)
![Flow Cytometry: CD4 Antibody (GK1.5) [NBP2-25191] - Analysis using the Allophycocyanin conjugate of NBP2-26585. Staining of CD4 in 10^6 BALB/c mouse splenocytes using 1 ug of this antibody. Green represents isotype control; red represents mouse CD4 this antibody. Image using the Azide Free format of this antibody.](http://images.novusbio.com/fullsize/CD4-Antibody-GK1-5-Flow-Cytometry-NBP2-25191-img0006.jpg)
![Flow Cytometry: CD4 Antibody (GK1.5) [NBP2-25191] - Analysis using the FITC conjugate of NBP2-26585. Staining of CD4 in 10^6 BALB/c mouse splenocytes using 1 ug of NBP2-26584. Green represents isotype control (20212C); red represents mouse CD4 NBP2-26584 antibody. Image using the Azide Free format of this antibody.](http://images.novusbio.com/fullsize/CD4-Antibody-GK1-5-Flow-Cytometry-NBP2-25191-img0007.jpg)
![Immunohistochemistry-Paraffin: CD4 Antibody (CT-4) [NBP1-28266] - Chicken spleen tissue was stained with Mouse Anti-Chicken CD4-UNLB (right) followed by Anti-Mouse IgG-HRP, DAB, and hematoxylin.](http://images.novusbio.com/fullsize/CD4-Antibody-CT-4-Immunohistochemistry-Paraffin-NBP1-28266-img0006.jpg "Immunohistochemistry-Paraffin: CD4 Antibody (CT-4) [NBP1-28266] - Chicken spleen tissue was stained with Mouse Anti-Chicken CD4-UNLB (right) followed by Anti-Mouse IgG-HRP, DAB, and hematoxylin.")
![Flow Cytometry: CD4 Antibody (CT-4) [NBP1-28266] - Analysis using the PE conjugate of NBP1-28266. Staining of 1 ug with CD4-RPE on Chicken PBMC.](http://images.novusbio.com/fullsize/CD4-Antibody-CT-4-Flow-Cytometry-NBP1-28266-img0004.jpg)
![Flow Cytometry: CD4 Antibody (CT-4) [NBP1-28266] - Analysis using the PE conjugate of NBP1-28266. Multiple staining of peripheral blood mononuclear cells.](http://images.novusbio.com/fullsize/CD4-Antibody-CT-4-Flow-Cytometry-NBP1-28266-img0002.jpg)
![Flow Cytometry: CD4 Antibody (CT-4) [NBP1-28266] - Analysis using the PE conjugate of NBP1-28266. Double staining of Chicken peripheral blood mononuclear cells with mouse anti-chicken CD4-R-PE and mouse anti-chicken CD3- FITC (Clone CT-3).](http://images.novusbio.com/fullsize/CD4-Antibody-CT-4-Flow-Cytometry-NBP1-28266-img0003.jpg)
![Immunocytochemistry/Immunofluorescence: CD4 Antibody [NBP3-18057] - U-251 MG cells were fixed in 4% paraformaldehyde for 10 minutes and permeabilized in 0.05% Triton X-100 in PBS for 5 minutes. The cells were incubated with CD4 Antibody (NBP3-18057) at 1ug/ml overnight at 4C and detected with an anti-rabbit DyLight 488 (Green) at a 1:1000 dilution for 60 minutes. Nuclei were counterstained with DAPI (Blue). Cells were imaged using a 40X objective.](http://images.novusbio.com/fullsize/CD4-Antibody-Immunocytochemistry-Immunofluorescence-NBP3-18057-img0002.jpg "Immunocytochemistry/Immunofluorescence: CD4 Antibody [NBP3-18057] - U-251 MG cells were fixed in 4% paraformaldehyde for 10 minutes and permeabilized in 0.05% Triton X-100 in PBS for 5 minutes. The cells were incubated with CD4 Antibody (NBP3-18057) at 1ug/ml overnight at 4C and detected with an anti-rabbit DyLight 488 (Green) at a 1:1000 dilution for 60 minutes. Nuclei were counterstained with DAPI (Blue). Cells were imaged using a 40X objective.")
![Immunohistochemistry-Paraffin: CD4 Antibody [NBP3-18057] - Analysis of a FFPE tissue section of human spleen using 1:200 dilution of CD4 antibody (NBP3-18057). The staining was developed using HRP labeled anti-rabbit secondary antibody and DAB reagent, and nuclei of cells were counter-stained with hematoxylin.](http://images.novusbio.com/fullsize/CD4-Antibody-Immunohistochemistry-Paraffin-NBP3-18057-img0001.jpg)
![Flow Cytometry: CD4 Antibody [NBP3-18057] - An intracellular stain was performed on Jurkat cells with CD4 Antibody NBP3-18057 (blue) and a matched isotype control NBP2-24891 (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 2.5 ug/mL for 30 minutes at room temperature, followed by Rabbit IgG (H+L) Cross-Adsorbed Secondary Antibody, Dylight 550 (SA5-10033, Thermo Fisher).](http://images.novusbio.com/fullsize/CD4-Antibody-Flow-Cytometry-NBP3-18057-img0003.jpg)
![Immunohistochemistry: CD4 Antibody (MT310) [NBP2-52706] - Anti-CD4 staining of formaldehyde fixed paraffin embedded guinea pig skin tissue, at 40x magnification. The mouse IgG1-chimeric version of MT310 (NBP2-52706) was used to stain samples at a concentration of 3 ug/ml.](http://images.novusbio.com/fullsize/CD4-Antibody-MT310-Immunohistochemistry-NBP2-52706-img0001.jpg "Immunohistochemistry: CD4 Antibody (MT310) [NBP2-52706] - Anti-CD4 staining of formaldehyde fixed paraffin embedded guinea pig skin tissue, at 40x magnification. The mouse IgG1-chimeric version of MT310 (NBP2-52706) was used to stain samples at a concentration of 3 ug/ml.")
![Flow Cytometry: CD4 Antibody (MT310) [NBP2-52706] - Human lymphocytes](http://images.novusbio.com/fullsize/CD4-Antibody-MT310-Flow-Cytometry-NBP2-52706-img0004.jpg)
![Flow Cytometry: CD4 Antibody (MT310) [NBP2-52706] - Rhesus monkey lymphocytes](http://images.novusbio.com/fullsize/CD4-Antibody-MT310-Flow-Cytometry-NBP2-52706-img0002.jpg)
![Flow Cytometry: CD4 Antibody (MT310) [NBP2-52706] - Cynomolgus monkey lymphocytes](http://images.novusbio.com/fullsize/CD4-Antibody-MT310-Flow-Cytometry-NBP2-52706-img0003.jpg)
![Flow Cytometry: CD4 Antibody (B486A1) [NB100-2181] - Analysis of blood T cells using CD4 mouse mAb (M2) and negative control (M1).](http://images.novusbio.com/fullsize/CD4-Antibody-B486A1-Flow-Cytometry-NB100-2181-img0004.jpg "Flow Cytometry: CD4 Antibody (B486A1) [NB100-2181] - Analysis of blood T cells using CD4 mouse mAb (M2) and negative control (M1).")
![Western Blot: CD4 Antibody (B486A1) [NB100-2181] - Analysis of human tonsil tissue using CD4 antibody at a concentration of 2 ug/ml.](http://images.novusbio.com/fullsize/CD4-Antibody-B486A1-Western-Blot-NB100-2181-img0005.jpg)