Pacific Blue™ anti-mouse CD4 Antibody

Pricing & Availability
Clone
GK1.5 (See other available formats)
Regulatory Status
RUO
Other Names
L3T4, T4
Isotype
Rat IgG2b, κ
Ave. Rating
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Product Citations
publications
GK1dot5_Blue_091207
C57BL/6 mouse splenocytes were stained with CD4 (clone GK1.5) Pacfic Blue™ (filled histogram) or rat IgG2b, κ Pacific Blue™ isotype control (open histogram).
  • GK1dot5_Blue_091207
    C57BL/6 mouse splenocytes were stained with CD4 (clone GK1.5) Pacfic Blue™ (filled histogram) or rat IgG2b, κ Pacific Blue™ isotype control (open histogram).
Compare all formats See Pacific Blue™ spectral data
Cat # Size Price Quantity Check Availability Save
100427 25 µg £65
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100428 100 µg £148
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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, a subset of T cells, and weakly on macrophages and dendritic cells. It acts as a coreceptor with the TCR during T cell activation and thymic differentiation by binding MHC class II and associating with the protein tyrosin kinase, lck.

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Mouse
Antibody Type
Monoclonal
Host Species
Rat
Immunogen
Mouse CTL clone V4
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation
The antibody was purified by affinity chromatography, and conjugated with Pacific Blue™ under optimal conditions.
Concentration
0.5 mg/ml
Storage & Handling
The CD4 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. The suggested use of this reagent is ≤1.0 µg per 106 cells in 100 µl volume. It is highly recommended that the reagent be titrated for optimal performance for each application.

* Pacific Blue™ has a maximum emission of 455 nm when it is excited at 405 nm. Prior to using Pacific Blue™ conjugate for flow cytometric analysis, please verify your flow cytometer's capability of exciting and detecting the fluorochrome.


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

View full statement regarding label licenses
Excitation Laser
Violet Laser (405 nm)
Application Notes

Additional reported applications (for the relevant formats) include: blocking of CD4+ T cell activation1,4,11, thymocyte costimulation3, in vitro and in vivo depletion2,5-8, blocking of egg-sperm cell adhesion1,4, immunohistochemical staining of acetone-fixed frozen sections9,10, immunoprecipitation1,2, and spatial biology (IBEX)12,13. The GK1.5 antibody is able to block CD4 mediated cell adhesion and T cell activation. Binding of GK1.5 antibody to CD4 T cells can be blocked by RM4-5 antibody, but not RM4-4 antibody. For in vivo studies or highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 100442) with a lower endotoxin limit than standard LEAF™ purified antibodies (Endotoxin < 0.01 EU/µg).

Application References

(PubMed link indicates BioLegend citation)
  1. Dialynas DP, et al. 1983. J. Immunol. 131:2445. (Block, IP)
  2. Dialynas DP, et al. 1983. Immunol. Rev. 74:29. (IP, Deplete)
  3. Wu L, et al. 1991. J. Exp. Med. 174:1617. (Costim)
  4. Godfrey DI, et al. 1994. J. Immunol. 152:4783. (Block)
  5. Gavett SH, et al. 1994. Am. J. Respir. Cell. Mol. Biol. 10:587. (Deplete)
  6. Schuyler M, et al. 1994. Am. J. Respir. Crit. Care Med. 149:1286. (Deplete)
  7. Ghobrial RR, et al. 1989. Clin. Immunol. Immunopathol. 52:486. (Deplete)
  8. Israelski DM, et al. 1989. J. Immunol. 142:954. (Deplete)
  9. Zheng B, et al. 1996. J. Exp. Med. 184:1083. (IHC)
  10. Frei K, et al. 1997. J. Exp. Med. 185:2177. (IHC)
  11. Felix NJ, et al. 2007. Nat. Immunol. 8:388. (Block)
  12. Radtke AJ, et al. 2020. Proc Natl Acad Sci U S A. 117:33455-65. (SB) PubMed
  13. Radtke AJ, et al. 2022. Nat Protoc. 17:378-401. (SB) PubMed
Product Citations
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RRID
AB_493646 (BioLegend Cat. No. 100427)
AB_493647 (BioLegend Cat. No. 100428)

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.

Other Formats

View All CD4 Reagents Request Custom Conjugation
Description Clone Applications
APC anti-mouse CD4 GK1.5 FC
Biotin anti-mouse CD4 GK1.5 FC, IHC-F, ICC
FITC anti-mouse CD4 GK1.5 FC, IHC-F, ICC
PE anti-mouse CD4 GK1.5 FC
PE/Cyanine5 anti-mouse CD4 GK1.5 FC
Purified anti-mouse CD4 GK1.5 FC, IHC-F, ICC, IP, Costim, Block, Depletion
PE/Cyanine7 anti-mouse CD4 GK1.5 FC
APC/Cyanine7 anti-mouse CD4 GK1.5 FC
Alexa Fluor® 647 anti-mouse CD4 GK1.5 FC, IHC-F, ICC
Alexa Fluor® 488 anti-mouse CD4 GK1.5 FC, IHC-F, ICC
Pacific Blue™ anti-mouse CD4 GK1.5 FC
Alexa Fluor® 700 anti-mouse CD4 GK1.5 FC
PerCP anti-mouse CD4 GK1.5 FC
PerCP/Cyanine5.5 anti-mouse CD4 GK1.5 FC
Brilliant Violet 421™ anti-mouse CD4 GK1.5 FC, ICC, IHC-F
Ultra-LEAF™ Purified anti-mouse CD4 GK1.5 FC, Block, Costim, Depletion, IHC, IP
Alexa Fluor® 594 anti-mouse CD4 GK1.5 IHC-F, FC, ICC, SB
Brilliant Violet 711™ anti-mouse CD4 GK1.5 FC
Brilliant Violet 510™ anti-mouse CD4 GK1.5 FC, IHC-F, ICC
Brilliant Violet 605™ anti-mouse CD4 GK1.5 FC
Brilliant Violet 785™ anti-mouse CD4 GK1.5 FC
PE/Dazzle™ 594 anti-mouse CD4 GK1.5 FC
APC/Fire™ 750 anti-mouse CD4 GK1.5 FC
GoInVivo™ Purified anti-mouse CD4 GK1.5 FC
Brilliant Violet 750™ anti-mouse CD4 GK1.5 FC
Brilliant Violet 650™ anti-mouse CD4 GK1.5 FC
Spark Blue™ 550 anti-mouse CD4 GK1.5 FC
Spark NIR™ 685 anti-mouse CD4 GK1.5 FC
KIRAVIA Blue 520™ anti-mouse CD4 GK1.5 FC
PE/Fire™ 640 anti-mouse CD4 GK1.5 FC
APC/Fire™ 810 anti-mouse CD4 GK1.5 FC
PE/Fire™ 700 anti-mouse CD4 GK1.5 FC
Spark Violet™ 538 anti-mouse CD4 GK1.5 FC
Spark YG™ 593 anti-mouse CD4 GK1.5 FC
Spark Blue™ 574 anti-mouse CD4 Antibody GK1.5 FC
Spark UV™ 387 anti-mouse CD4 GK1.5 FC
Go To Top Version: 1    Revision Date: 11/30/2012

For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.

 

*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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Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

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.

  • APC anti-mouse CD4

  • Biotin anti-mouse CD4

  • FITC anti-mouse CD4

  • PE anti-mouse CD4

  • PE/Cyanine5 anti-mouse CD4

  • Purified anti-mouse CD4

  • PE/Cyanine7 anti-mouse CD4

  • APC/Cyanine7 anti-mouse CD4

  • Alexa Fluor® 647 anti-mouse CD4

  • Alexa Fluor® 488 anti-mouse CD4

  • Pacific Blue™ anti-mouse CD4

  • Alexa Fluor® 700 anti-mouse CD4

  • PerCP anti-mouse CD4

  • PerCP/Cyanine5.5 anti-mouse CD4

  • Brilliant Violet 421™ anti-mouse CD4

  • Ultra-LEAF™ Purified anti-mouse CD4

  • Alexa Fluor® 594 anti-mouse CD4

  • Brilliant Violet 711™ anti-mouse CD4

  • Brilliant Violet 510™ anti-mouse CD4

  • Brilliant Violet 605™ anti-mouse CD4

  • Brilliant Violet 785™ anti-mouse CD4

  • PE/Dazzle™ 594 anti-mouse CD4

  • APC/Fire™ 750 anti-mouse CD4

  • GoInVivo™ Purified anti-mouse CD4

  • Brilliant Violet 750™ anti-mouse CD4

  • Brilliant Violet 650™ anti-mouse CD4

  • Spark Blue™ 550 anti-mouse CD4

  • Spark NIR™ 685 anti-mouse CD4

  • KIRAVIA Blue 520™ anti-mouse CD4

  • PE/Fire™ 640 anti-mouse CD4

  • APC/Fire™ 810 anti-mouse CD4

  • PE/Fire™ 700 anti-mouse CD4

  • Spark Violet™ 538 anti-mouse CD4

  • Spark YG™ 593 anti-mouse CD4

  • Spark Blue™ 574 anti-mouse CD4 Antibody

  • Spark UV™ 387 anti-mouse CD4

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