Alexa Fluor® 647 anti-mouse CD4 Antibody

Pricing & Availability
Clone
RM4-5 (See other available formats)
Regulatory Status
RUO
Other Names
L3T4, T4
Isotype
Rat IgG2a, κ
Ave. Rating
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Product Citations
publications
1_RM4-5_Alx647_030206
C57BL/6 mouse splenocytes stained with CD4 (clone RM4-5) Alexa Fluor® 647 (filled histogram) or rat IgG2a, κ Alexa Fluor® 647 isotype control (open histogram).
  • 1_RM4-5_Alx647_030206
    C57BL/6 mouse splenocytes stained with CD4 (clone RM4-5) Alexa Fluor® 647 (filled histogram) or rat IgG2a, κ Alexa Fluor® 647 isotype control (open histogram).
  • 2_Still-image_0401-5_10X-1_1
    Formalin-fixed, 300 micron-thick mouse spleen section was blocked, permeabilized and stained overnight with CD4 (clone RM4-5) Alexa Fluor® 647 (red), CD169 (Siglec-1)(clone 3D6.112) Alexa Fluor® 488 (green), and CD45R/B220 (clone RA3-6B2) Alexa Fluor® 594 (blue) all at 5 µg/mL, optically cleared, then analyzed at 220 μm imaging depth on a confocal microscope. Watch the video.
  • 3-RM4-5_A647_CD4_Antibody_IHCF_060719
    C57BL/6 mouse frozen spleen section was fixed with 4% paraformaldehyde (PFA) for 10 minutes at room temperature and blocked with 5% FBS for 30 minutes at room temperature. Then the section was stained with 10 µg/mL of anti-mouse CD4 (clone RM4-5) Alexa Fluor® 647 (red), anti-mouse CD8b (clone YTS156.7.7) Brilliant Violet 421™ (blue) and anti-mouse B220 (clone RA3-6B2) Alexa Fluor® 488 (green) overnight at 4°C. The image was captured by 10X objective.
  • RM4-5_A647_CD4_Antibody_3D_IHC_05112021.png
    Paraformaldehyde-fixed (4%), 500 μm-thick mouse spleen tissue section was processed according to the Ce3DTM Tissue Clearing Kit protocol (cat. no. 427701). The section was costained with anti-mouse/human CD45R/B220 Antibody (clone RA3-6B2) Alexa Fluor® 488 at 5 µg/mL (green), anti-mouse CD18 Antibody (clone M18/2) Alexa Fluor® 594 at 5 µg/mL (yellow), and anti-mouse CD4 Antibody (clone RM4-5) Alexa Fluor® 647 at 5 µg/mL (magenta). The section was then optically cleared and mounted in a sample chamber. The image was captured with a 10X objective using Zeiss 780 confocal microscope and processed by Imaris image analysis software.
    Watch the video.
See Alexa Fluor® 647 spectral data
Cat # Size Price Quantity Check Availability Save
100533 25 µg $85.00
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100530 100 µg $195.00
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Description

CD4 is a 55 kD protein also known as L3T4 or T4. It is a member of the Ig superfamily, primarily expressed on most thymocytes and a subset of T cells, and weakly on macrophages and dendritic cells. It acts as a co-receptor with the TCR during T cell activation and thymic differentiation by binding MHC class II and associating with the protein tyrosine kinase lck.

Product Details
Technical data sheet

Product Details

Reactivity
Mouse
Antibody Type
Monoclonal
Host Species
Rat
Immunogen
BALB/c mouse thymocytes
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation
The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 647 under optimal conditions.
Concentration
0.5 mg/mL
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
3D IHC, IHC-F - Verified

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 ≤ 0.25 µg per 106 cells in 100 µL volume. For 3D immunohistochemistry on formalin-fixed tissues, a concentration of 5.0 µg/mL is suggested. For immunohistochemistry on frozen tissue sections, a concentration range of 5.0 - 10 µg/mL is suggested. It is recommended that the reagent be titrated for optimal performance for each application.

* Alexa Fluor® 647 has a maximum emission of 668 nm when it is excited at 633nm / 635nm.


Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.

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Excitation Laser
Red Laser (633 nm)
Application Notes

The RM4-5 antibody blocks the binding of GK1.5 antibody and H129.19 antibody to CD4+ T cells, but not RM4-4 antibody. Additional reported applications (for the relevant formats) include: blocking of ligand binding, in vivo depletion of CD4+ cells1, and immunohistochemistry of acetone-fixed frozen tissue sections2,3,11 and paraffin-embedded sections11. Clone RM4-5 is not recommended for immunohistochemistry of formalin-fixed paraffin sections. Instead, acetone frozen or zinc-fixed paraffin sections are recommended. The Ultra-LEAF™ Purified antibody (Endotoxin < 0.01 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 100575 and 100576).

Application References

(PubMed link indicates BioLegend citation)
  1. Kruisbeek AM. 1991. In Curr. Protocols Immunol. pp. 4.1.1-4.1.5. (Block, Deplete)
  2. Nitta H, et al. 1997. Cell Vision 4:73. (IHC)
  3. Fan WY, et al. 2001. Exp. Biol. Med. 226:1045.
  4. Muraille E, et al. 2003. Infect. Immun. 71:2704. (IHC)
  5. León-Ponte M, et al. 2007. Blood 109:3139. (FC)
  6. Bourdeau A, et al. 2007. Blood doi:10.1182/blood-2006-08-044370. (FC)
  7. Matsumoto M, et al. 2007.J. Immunol.178:2499. PubMed
  8. Shigeta A, et al. 2008. Blood 112:4915. PubMed
  9. Zaborsky N, et al. 2010. J. Immunol. 184:725. PubMed
  10. Rodrigues-Manzanet R, et al. 2010. P. Natl Acad Sci USA 107:8706. PubMed
  11. Whiteland JL, et al. 1995. J. Histochem. Cytochem. 43:313. (IHC)
Product Citations
  1. Beloor J et al. 2018. Cell host & microbe. 23(4):549-556 . PubMed
  2. Sinclair LV et al. 2019. Elife. 8 pii: e44210. PubMed
  3. Jain RW, et al. 2018. Cell Rep. 25:3342. PubMed
  4. Katsuyama T, et al. 2019. J Clin Invest. 129:5411. PubMed
  5. Jamali A, et al. 2020. Cell Reports. 32(9):108099. PubMed
  6. Thornton T, et al. 2016. Nat Commun. 7:10553. PubMed
  7. Collins N, et al. 2016. Nat Commun. 7:11514. PubMed
  8. Hu HJ, et al. 2020. Cell Death Dis. 1.168055556. PubMed
  9. Rouleau N, et al. 2020. Immunohorizons. 0.695833333. PubMed
  10. Montel-Hagen A, et al. 2020. Cell Rep. 33:108320. PubMed
  11. Kim SI, et al. 2020. Molecular Cancer Therapeutics. 20(1):173-182. PubMed
  12. Zhou JY, et al. 2021. eLife. 10:00. PubMed
  13. Dikiy S, et al. 2021. Immunity. 54(5):931-946.e11. PubMed
RRID
AB_493372 (BioLegend Cat. No. 100533)
AB_389325 (BioLegend Cat. No. 100530)

Antigen Details

Structure
Ig superfamily, 55 kD
Distribution

Majority of thymocytes, T cell subset

Function
TCR co-receptor, T cell activation
Ligand/Receptor
MHC class II molecule
Cell Type
Dendritic cells, T cells, Thymocytes, Tregs
Biology Area
Immunology
Molecular Family
CD Molecules
Antigen References

1. Barclay A, et al. 1997. The Leukocyte Antigen FactsBook Academic Press.
2. Bierer BE, et al. 1989. Annu. Rev. Immunol. 7:579.
3. Janeway CA. 1992. Annu. Rev. Immunol. 10:645.

Gene ID
12504 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.
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*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/ordering#license). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.

 

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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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