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Ultra-LEAF™ Purified anti-mouse CD8a Antibody

Pricing & Availability
Clone
53-6.7 (See other available formats)
Regulatory Status
RUO
Other Names
T8, Lyt2, Ly-2
Isotype
Rat IgG2a, κ
Ave. Rating
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Product Citations
publications
53-6dot7_LEAF_041106
C57BL/6 mouse splenocytes were stained with LEAF™ purified CD8 (clone 53-6.7) (filled histogram) or rat IgG2a, κ isotype control (open histogram), followed by anti-rat IgG FITC.
  • 53-6dot7_LEAF_041106
    C57BL/6 mouse splenocytes were stained with LEAF™ purified CD8 (clone 53-6.7) (filled histogram) or rat IgG2a, κ isotype control (open histogram), followed by anti-rat IgG FITC.
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100775 100 µg $110
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100746 1 mg $164
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100763 5 mg $539
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100764 25 mg $1408
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100776 50 mg $2354
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100777 100 mg $3383
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Select size of product is eligible for a 40% discount! Promotion valid until December 31, 2024. Exclusions apply. To view full promotion terms and conditions or to contact your local BioLegend representative to receive a quote, visit our webpage.

Description

CD8, also known as Lyt-2, Ly-2, or T8, consists of disulfide-linked α and β chains that form the α(CD8a)/β(CD8b) heterodimer and α/α homodimer. CD8a is a 34 kD protein that belongs to the immunoglobulin family. The CD8 α/β heterodimer is expressed on the surface of most thymocytes and a subset of mature TCR α/β T cells. CD8 expression on mature T cells is non-overlapping with CD4. The CD8 α/α homodimer is expressed on a subset of γ/δ TCR-bearing T cells, NK cells, intestinal intraepithelial lymphocytes, and lymphoid dendritic cells. CD8 is an antigen co-receptor on T cells that interacts with MHC class I on antigen-presenting cells or epithelial cells. CD8 promotes T cell activation through its association with the TCR complex and protein tyrosine kinase lck.

Product Details
Technical data sheet

Product Details

Verified Reactivity
Mouse
Antibody Type
Monoclonal
Host Species
Rat
Immunogen
Mouse thymus or spleen
Formulation
0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative.
Endotoxin Level
Less than 0.01 EU/µg of the protein (< 0.001 ng/µg of the protein) as determined by the LAL test.
Preparation
The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration
The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. 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. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
Application

FC - Quality tested
CyTOF® - Verified
IHC, IP, Depletion, Block - Reported in the literature, not verified in house
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 million cells in 100 µl volume or 100 µl of whole blood.  It is recommended that the reagent be titrated for optimal performance for each application.

Application Notes

Clone 53-6.7 antibody competes with clone 5H10-1 antibody for binding to thymocytes3. The 53-6.7 antibody has been reported to block antigen presentation via MHC class I and inhibit T cell responses to IL-2. This antibody has also been used for depletion of CD8a+ cells. Additional reported applications (for the relevant formats) include: immunoprecipitation1,3, in vivo and in vitro cell depletion2,10,15, inhibition of CD8 T cell proliferation3, blocking of cytotoxicity3,4, immunohistochemical staining5,6 of acetone-fixed frozen sections and zinc-fixed paraffin-embedded sections, and spatial biology (IBEX)29,30. Clone 53-6.7 is not recommended for immunohistochemistry of formalin-fixed paraffin sections. The Ultra-LEAF™ purified antibody (Endotoxin < 0.01 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays or in vivo studies (Cat No. 100746).

Application References

(PubMed link indicates BioLegend citation)
  1. Ledbetter JA, et al. 1979. Immunol. Rev. 47:63. (IHC, IP)
  2. Hathcock KS. 1991. Current Protocols in Immunology. 3.4.1. (Deplete)
  3. Takahashi K, et al. 1992. P. Natl. Acad. Sci. USA 89:5557. (Block, IP)
  4. Ledbetter JA, et al. 1981. J. Exp. Med. 153:1503. (Block)
  5. Hata H, et al. 2004. J. Clin. Invest. 114:582. (IHC)
  6. Fan WY, et al. 2001. Exp. Biol. Med. 226:1045. (IHC)
  7. Shih FF, et al. 2006. J. Immunol. 176:3438. (FC)
  8. Kamimura D, et al. 2006. J. Immunol. 177:306.
  9. Bouwer HGA, et al. 2006. P. Natl. Acad. Sci. USA 103:5102. (FC, Deplete)
  10. Kao C, et al. 2005. Int. Immunol. 17:1607. PubMed
  11. Ko SY, et al. 2005. J. Immunol. 175:3309. (FC) PubMed
  12. Rasmussen JW, et al. 2006. Infect. Immun. 74:6590. PubMed
  13. Lee CH, et al. 2009. Clin. Cancer Res. PubMed
  14. Geiben-Lynn R, et al. 2008. Blood 112:4585. (Deplete) PubMed
  15. Kingeter LM, et al. 2008. J. Immunol. 181:6244. PubMed
  16. Guo Y, et al. 2008. Blood 112:480. PubMed
  17. Andrews DM, et al. 2008. J. Virol. 82:4931. PubMed
  18. Britschqui MR, et al. 2008. J. Immunol. 181:7681. PubMed
  19. Kenna TJ, et al. 2008. Blood 111:2091. PubMed
  20. Jordan JM, et al. 2008. Infect. Immun. 76:3717. PubMed
  21. Todd DJ, et al. 2009. J. Exp. Med. 206:2151. PubMed
  22. Bankoti J, et al. 2010. Toxicol. Sci. 115:422. (FC) PubMed
  23. Medyouf H, et al. 2010. Blood 115:1175. PubMed
  24. Riedl P, et al. 2009. J. Immunol. 183:370. PubMed
  25. Apte SH, et al. 2010. J. Immunol. 185:998. PubMed
  26. Bankoti J, et al. 2010. Toxicol. Sci. 115:422. (FC) PubMed
  27. del Rio ML, et al. 2011. Transpl. Int. 24:501. (FC) PubMed
  28. Cui L, et al. 2015. J Control Release. 206:220. PubMed
  29. Radtke AJ, et al. 2020. Proc Natl Acad Sci U S A. 117:33455-65. (SB) PubMed
  30. Radtke AJ, et al. 2022. Nat Protoc. 17:378-401. (SB) PubMed
Product Citations
  1. Madi A, et al. 2022. Int J Cancer. 151:797. PubMed
  2. Que W, et al. 2022. Sci Adv. 8:eabo4413. PubMed
  3. Wang JX, et al. 2023. JCI Insight. 8:. PubMed
  4. Hu J, et al. 2022. J Immunother Cancer. 10:. PubMed
  5. Biram A, et al. 2020. Cell Rep. 30:1910. PubMed
  6. Yu Y, et al. 2022. Nat Commun. 13:6357. PubMed
  7. Vasu S, et al. 2016. Blood. 127: 2879 - 2889. PubMed
  8. Zhang D, et al. 2020. Signal Transduct Target Ther. 5:24. PubMed
  9. Huang Z, et al. 2021. Nat Commun. 12:145. PubMed
  10. Xu P, et al. 2020. Cancer Immunol Res. 8:1193. PubMed
  11. Wang Y, et al. 2021. Nat Commun. 12:4964. PubMed
  12. Zhang D, et al. 2020. Signal Transduct Target Ther. 5:24. PubMed
  13. Ma Q, et al. 2021. Precis Clin Med. 4:155. PubMed
RRID
AB_2810323 (BioLegend Cat. No. 100775)
AB_2810323 (BioLegend Cat. No. 100746)
AB_2810323 (BioLegend Cat. No. 100763)
AB_2810323 (BioLegend Cat. No. 100764)
AB_2810323 (BioLegend Cat. No. 100776)
AB_2810323 (BioLegend Cat. No. 100777)

Antigen Details

Structure
Ig superfamily, CD8α chain, 34 kD
Distribution

Most thymocytes, T cell subset, some NK cells, lymphoid dendritic cells

Function
Co-receptor for TCR
Ligand/Receptor
MHC class I molecule
Antigen References

1. Barclay A, et al. 1997. The Leukocyte Antigen FactsBook Academic Press.
2. Zamoyska R. 1994. Immunity 1:243.
3. Ellmeier W, et al. 1999. Annu. Rev. Immunol. 17:523.

Gene ID
12525 View all products for this Gene ID
UniProt
View information about CD8alpha on UniProt.org

Related FAQs

Do you guarantee that your antibodies are totally pathogen free?

BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.

Does BioLegend test each Ultra-LEAF™ antibody by functional assay?

No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.

Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?

No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.

Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?

We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.

Other Formats

View All CD8a Reagents Request Custom Conjugation
Description Clone Applications
APC anti-mouse CD8a 53-6.7 FC
Biotin anti-mouse CD8a 53-6.7 FC,IHC
FITC anti-mouse CD8a 53-6.7 FC
PE anti-mouse CD8a 53-6.7 FC
PE/Cyanine5 anti-mouse CD8a 53-6.7 FC
Purified anti-mouse CD8a 53-6.7 FC,CyTOF®,IHC-F,IP
PE/Cyanine7 anti-mouse CD8a 53-6.7 FC
APC/Cyanine7 anti-mouse CD8a 53-6.7 FC
Alexa Fluor® 488 anti-mouse CD8a 53-6.7 FC,3D IHC
Alexa Fluor® 647 anti-mouse CD8a 53-6.7 FC,IHC-F,3D IHC,SB
Pacific Blue™ anti-mouse CD8a 53-6.7 FC
Alexa Fluor® 700 anti-mouse CD8a 53-6.7 FC
PerCP/Cyanine5.5 anti-mouse CD8a 53-6.7 FC
PerCP anti-mouse CD8a 53-6.7 FC
Brilliant Violet 421™ anti-mouse CD8a 53-6.7 FC,IHC,SB
Brilliant Violet 570™ anti-mouse CD8a 53-6.7 FC
Brilliant Violet 650™ anti-mouse CD8a 53-6.7 FC
Brilliant Violet 605™ anti-mouse CD8a 53-6.7 FC
Ultra-LEAF™ Purified anti-mouse CD8a 53-6.7 FC,CyTOF®,IHC,IP,Depletion,Block
Brilliant Violet 711™ anti-mouse CD8a 53-6.7 FC
Brilliant Violet 785™ anti-mouse CD8a 53-6.7 FC
Brilliant Violet 510™ anti-mouse CD8a 53-6.7 FC
Purified anti-mouse CD8a (Maxpar® Ready) 53-6.7 FC,CyTOF®
Alexa Fluor® 594 anti-mouse CD8a 53-6.7 IHC-F,FC,3D IHC
PE/Dazzle™ 594 anti-mouse CD8a 53-6.7 FC
APC/Fire™ 750 anti-mouse CD8a 53-6.7 FC
GoInVivo™ Purified anti-mouse CD8a 53-6.7 FC
TotalSeq™-A0002 anti-mouse CD8a 53-6.7 PG
Spark Blue™ 550 anti-mouse CD8a 53-6.7 FC
Spark NIR™ 685 anti-mouse CD8a 53-6.7 FC
TotalSeq™-C0002 anti-mouse CD8a 53-6.7 PG
TotalSeq™-B0002 anti-mouse CD8a 53-6.7 PG
Spark YG™ 570 anti-mouse CD8a 53-6.7 IHC-F
PE/Fire™ 640 anti-mouse CD8a 53-6.7 FC
PE/Fire™ 700 anti-mouse CD8a 53-6.7 FC
Spark Blue™ 574 anti-mouse CD8a Antibody 53-6.7 FC
Spark Violet™ 423 anti-mouse CD8a Antibody 53-6.7 FC
Spark UV™ 387 anti-mouse CD8a 53-6.7 FC
Spark Blue™ 515 anti-mouse CD8a 53-6.7 FC
APC/Fire™ 810 anti-mouse CD8a 53-6.7 FC
Spark Red™ 718 anti-mouse CD8a (Flexi-Fluor™) 53-6.7 FC
PE/Fire™ 810 anti-mouse CD8a 53-6.7 FC
Spark PLUS UV395™ anti-mouse CD8a 53-6.7 FC
PerCP/Fire™ 780 anti-mouse CD8a 53-6.7 FC
Go To Top Version: 2    Revision Date: 01/21/2014

For Research Use Only. Not for diagnostic or therapeutic use.

 

This product is supplied subject to the terms and conditions, including the limited license, located at www.biolegend.com/terms) ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.

 

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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.

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