Ultra-LEAF™ Purified anti-mouse CD272 (BTLA) Antibody

Pricing & Availability
6A6 (See other available formats)
Regulatory Status
Other Names
BTLA, B and T lymphocyte attenuator
Armenian Hamster IgG
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139117 100 µg 88€
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139118 1 mg 120€
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139119 5 mg 432€
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139120 25 mg 1127€
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139121 50 mg 1884€
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139122 100 mg 2707€
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This product is eligible for a 40% discount! Promotion valid until December 31, 2023. Exclusions apply. To view full promotion terms and conditions or to contact your local BioLegend representative to receive a quote, visit our webpage.


CD272, also known as B and T lymphocyte attenuator (BTLA), is an Ig superfamily co-inhitory receptor with structural similarity to programmed cell death 1 (PD-1) and CTLA-4.  BTLA is expressed on B cells, T cells, macrophages, dendritic cells, NKT cells, and NK cells. Engagement of BTLA by its ligand herpes virus entry mediator (HVEM) is critical for negatively regulating immune response.  The absence of BTLA with HVEM inhibitory interactions leads to increased experimental autoimmune encephalomyelitis severity, enhanced rejection of partially mismatched allografts, an increased CD8+ memory T cell population, increased severity of colitis, and reduced effectiveness of T regulatory cells.  BTLA plays an important role in the induction of peripheral tolerance of both CD4+ and CD8+ T cells in vivo.  Tolerant T cells have significantly higher expression of BTLA compared with effectors and naïve T cells.  BTLA may cooperate with CTLA-4 and PD-1 to control T cell tolerance and autoimmunity.  It was reported that BTLA may regulate T cell function by binding to B7-H4, but further studies are needed to confirm.  The existence of three distinct BTLA alleles has been reported.

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Antibody Type
Host Species
Armenian Hamster
C57BL/6 BTLA Ig domain protein in CFA
0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative. Endotoxin level is < 0.01 EU/µg of the protein (< 0.001 ng/µg of the protein) as determined by the LAL test.
The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
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.

FC - Quality tested
IP - 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 ≤ 0.06 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

Additional reported applications (for relevant formats) include: immunoprecipitation1,2 and blocking3,5 of OT-I T cell responses in vitro and incidence of cerebral malaria in vivo caused by P. berghei ANKA (PbA) infection. The LEAF™ purified antibody (Endotoxin < 0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. No. 139104). For highly sensitive assays, we recommend Ultra-LEAF™ purified antibody (Cat. No. 139117 - 139122) with a lower endotoxin limit than standard LEAF™ purified antibodies (Endotoxin < 0.01 EU/µg).

Clone 6A6 antibody reacts only with the C57BL/6 allele of BTLA but not the BALB/c allele of BTLA.

Application References
  1. Hurchla MA, et al. 2005. J. Immunol. 174:337. (IP FC)
  2. Sedy JR, et al. 2005. Nat. Immunol. 6:90. (IP)
  3. Lepenies B, et al. 2007. J. Immunol. 179:4093. (Block)
  4. Tao R, et al. 2005. J. Immunol. 175:5774. (FC)
  5. Albring J, et al. 2010. J. Exp. Med. 207:2551. (Block)
AB_2832500 (BioLegend Cat. No. 139117)
AB_2832501 (BioLegend Cat. No. 139118)
AB_2832502 (BioLegend Cat. No. 139119)
AB_2832503 (BioLegend Cat. No. 139120)
AB_2832504 (BioLegend Cat. No. 139121)
AB_2860689 (BioLegend Cat. No. 139122)

Antigen Details

An Ig superfamily co-inhibitory receptor with structural similarity to programmed cell death 1 (PD-1) and CTLA-4.

BTLA is expressed on a wide number of lymphocytes in mice. It is most highly expressed on B cells, followed by CD4+ T cells, lower expression on CD8+ T cells, macrophages, dendritic cells, NKT cells, and NK cells.

BTLA functions as a negative regulator of T cell activation and proliferation, attenuate B cell proliferation upon associating with its known ligand, herpes virus entry mediator (HVEM).
Cell Type
B cells, Dendritic cells, Lymphocytes, NKT cells, T cells
Biology Area
Immunology, Inhibitory Molecules
Molecular Family
CD Molecules
Antigen References

1. Liu X, et al. 2009. J Immunol. 182:4516.
2. Miller ML, et al. 2009. J Immunol. 183:32.
3. Sun Y, et al. 2009. J Immunol. 183:1946.
4. Vendel AC, et al. 2009. J Immunol. 182:1509.
5. Watanabe N, et al. 2003. Nat Immunol. 4:670.

Gene ID
208154 View all products for this Gene ID
View information about CD272 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.

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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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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.

  • Alexa Fluor® 647 anti-mouse CD272 (BTLA)

  • PE anti-mouse CD272 (BTLA)

  • APC anti-mouse CD272 (BTLA)

  • Alexa Fluor® 594 anti-mouse CD272 (BTLA)

  • TotalSeq™-A0881 anti-mouse CD272 (BTLA)

  • PE/Cyanine7 anti-mouse CD272 (BTLA)

  • Ultra-LEAF™ Purified anti-mouse CD272 (BTLA)

  • TotalSeq™-C0881 anti-mouse CD272 (BTLA)

  • PE/Fire™ 640 anti-mouse CD272 (BTLA)

  • PE/Fire™ 700 anti-mouse CD272 (BTLA)

  • TotalSeq™-B0881 anti-mouse CD272 (BTLA)


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