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APC/Cyanine7 anti-human CD4 Antibody

Pricing & Availability
Clone
RPA-T4 (See other available formats)
Regulatory Status
RUO
Workshop
IV T114
Other Names
T4
Isotype
Mouse IgG1, κ
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Product Citations
publications
RPA-T4_APCCy7_CD4_Antibody_011719.png
Human peripheral blood lymphocytes were stained with CD4 (clone RPA-T4) APC/Cyanine7 (filled histogram) or mouse IgG1, κ APC/Cyanine7 isotype control (open histogram)
  • RPA-T4_APCCy7_CD4_Antibody_011719.png
    Human peripheral blood lymphocytes were stained with CD4 (clone RPA-T4) APC/Cyanine7 (filled histogram) or mouse IgG1, κ APC/Cyanine7 isotype control (open histogram)
See APC/Cyanine7 spectral data
Cat # Size Price Save
300517 25 tests ¥25,520
300518 100 tests ¥51,980
Description

CD4, also known as T4, is a 55 kD single-chain type I transmembrane glycoprotein expressed on most thymocytes, a subset of T cells, and monocytes/macrophages. CD4, a member of the Ig superfamily, recognizes antigens associated with MHC class II molecules, and participates in cell-cell interactions, thymic differentiation, and signal transduction. CD4 acts as a primary receptor for HIV, binding to HIV gp120. CD4 has also been shown to interact with IL-16.

Product Details
Technical data sheet

Product Details

Reactivity
Human
Antibody Type
Monoclonal
Host Species
Mouse
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)
Preparation
The antibody was purified by affinity chromatography, and conjugated with APC/Cyanine7 under optimal conditions.
Concentration
Lot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
Application

FC - Quality tested
Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is 5 µl per million cells in 100 µl staining volume or 5 µl per 100 µl of whole blood.

Excitation Laser
Red Laser (633 nm)
Application Notes

The RPA-T4 antibody binds to the D1 domain of CD4 (CDR1 and CDR3 epitopes) and can block HIV gp120 binding and inhibit syncytia formation. Additional reported applications (for the relevant formats) include: immunohistochemistry of acetone-fixed frozen sections3,4,5, blocking of T cell activation1,2, and spatial biology (IBEX)10,11.  This clone was tested in-house and does not work on formalin fixed paraffin-embedded (FFPE) tissue. The Ultra-LEAF™ purified antibody (Endotoxin < 0.01 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 300569 - 300574).

Additional Product Notes
BioLegend is in the process of converting the name APC/Cy7 to APC/Cyanine7. The dye molecule remains the same, so you should expect the same quality and performance from our APC/Cyanine7 products. Please contact Technical Service if you have any questions.
Application References

(PubMed link indicates BioLegend citation)
  1. Knapp W, et al. 1989. Leucocyte Typing IV. Oxford University Press. New York. (Activ)
  2. Moir S, et al. 1999. J. Virol. 73:7972. (Activ)
  3. Deng MC, et al. 1995. Circulation 91:1647. (IHC)
  4. Friedman T, et al. 1999. J. Immunol. 162:5256. (IHC)
  5. Mack CL, et al. 2004. Pediatr. Res. 56:79. (IHC)
  6. Lan RY, et al. 2006. Hepatology 43:729.
  7. Zenaro E, et al. 2009. J. Leukoc. Biol. 86:1393. (FC) PubMed
  8. Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC)
  9. Stoeckius M, et al. 2017. Nat. Methods. 14:865. (PG)
  10. Radtke AJ, et al. 2020. Proc Natl Acad Sci USA. 117:33455-33465. (SB) PubMed
  11. Radtke AJ, et al. 2022. Nat Protoc. 17:378-401. (SB) PubMed
Product Citations
  1. Sayin I, et al. 2018. J Exp Med. 7:40286. PubMed
  2. Kagoya Y, et al. 2018. Nat Commun. 9:1915. PubMed
  3. Yarzabek B et al. 2018. eLife. 7 pii: e34961. PubMed
  4. Kuo HH, et al. 2018. Immunity. 48:1183. PubMed
  5. Tardif V, et al. 2019. Nat Commun. 10:823. PubMed
  6. Wefers C, et al. 2019. Front Immunol. 9:3156. PubMed
  7. Kong XF, et al. 2018. Nat Immunol. 19:973. PubMed
  8. Einkauf KB, et al. 2019. J Clin Invest. 129:988. PubMed
  9. Leclerc M, et al. 2019. Nat Commun. 10:3345. PubMed
  10. Geng J, et al. 2018. Elife. 7:e36341. PubMed
  11. Weisberg SP, et al. 2020. Cell Reports. 29(12):3916-3932.e5.. PubMed
  12. Swadling L, et al. 2020. Cell Rep. 30:687. PubMed
  13. Zhou Y, et al. 2017. Front Cell Infect Microbiol. 7:457. PubMed
  14. Charpentier JC, et al. 2020. Nat Commun. 11:180. PubMed
  15. Goodwin M, et al. 2020. Sci Adv. 6:eaaz0571. PubMed
  16. Yoshitomi H, et al. 2018. Nat Commun. 2.9875. PubMed
  17. Qi Y, et al. 2012. PLoS One. 7:e39072. PubMed
  18. Masuda H, et al. 2014. J Am Heart Assoc. 3:743. PubMed
  19. D, et al. 2016. Tuberculosis. 95: 470-475. PubMed
  20. Karlsson H, et al. 2015. PLoS One. 10: 0144787. PubMed
  21. Iannetta M, et al. 2016. PLoS One. 11: 0160277. PubMed
  22. Pachnio A, et al. 2016. PLoS Pathog. 12: 1005832. PubMed
  23. Whitfield SJC, et al. 2017. J Immunol. 198:3989. PubMed
  24. Gruber T, et al. 2020. JCI Insight. 5:00. PubMed
  25. Lübke M, et al. 2020. J Exp Med. 217:00:00. PubMed
  26. Bilich T, et al. 2021. Science Translational Medicine. 13(590):. PubMed
  27. Yang R, et al. 2020. Cell. 183(7):1826-1847.e31. PubMed
  28. Caduff N, et al. 2021. Cell Reports. 35(5):109056. PubMed
  29. Brudno JN, et al. 2020. Nat Med. 270:26. PubMed
  30. Jiang C, et al. 2020. Nature. 261:585. PubMed
  31. Shevyrev D, et al. 2021. Exp Ther Med. 209:21. PubMed
  32. Bilich T, et al. 2021. Cancer Discov. 11:1982. PubMed
  33. Chruewkamlow N, et al. 2021. Stem Cell Res Ther. 12:520. PubMed
  34. Heitmann JS, et al. 2021. Nature. Online ahead of print. PubMed
  35. Luo Y, et al. 2021. Front Immunol. 12:761209. PubMed
  36. Einkauf KB, et al. 2022. Cell. 185:266. PubMed
  37. Carrion B, et al. 2021. Neurol Neuroimmunol Neuroinflamm. 8:. PubMed
  38. García-Espinoza JA, et al. 2022. Curr Issues Mol Biol. 44:764. PubMed
  39. Warmuth S, et al. 2022. Oncoimmunology. 10:2004661. PubMed
  40. Naidoo KK, et al. 2020. PLoS One. 15:e0242448. PubMed
  41. Ogishi M, et al. 2021. Nat Med. 27:1646. PubMed
  42. Bauer J, et al. 2022. Nat Commun. 13:6401. PubMed
  43. Imai H, et al. 2023. iScience. 26:106822. PubMed
RRID
AB_314085 (BioLegend Cat. No. 300517)
AB_314086 (BioLegend Cat. No. 300518)

Antigen Details

Structure
Ig superfamily, type I transmembrane glycoprotein, 55 kD
Distribution

T cell subset, majority of thymocytes, monocytes/macrophages

Function
MHC class II co-receptor, lymphocyte adhesion, thymic differentiation, HIV receptor
Ligand/Receptor
MHC class II molecules, HIV gp120, IL-16
Cell Type
Dendritic cells, Macrophages, Monocytes, T cells, Thymocytes, Tregs
Biology Area
Immunology
Molecular Family
CD Molecules
Antigen References

1. Center D, et al. 1996. Immunol. Today 17:476.
2. Gaubin M, et al. 1996. Eur. J. Clin. Chem. Clin. Biochem. 34:723.

Gene ID
920 View all products for this Gene ID
UniProt
View information about CD4 on UniProt.org

Related FAQs

I am unable to see expression of T cell markers such as CD3 and CD4 post activation.
TCR-CD3 complexes on the T-lymphocyte surface are rapidly downregulated upon activation with peptide-MHC complex, superantigen or cross-linking with anti-TCR or anti-CD3 antibodies. PMA/Ionomycin treatment has been shown to downregulate surface CD4 expression. Receptor downregulation is a common biological phenomenon and so make sure that your stimulation treatment is not causing it in your sample type.
Go To Top Version: 5    Revision Date: 01/17/2019

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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