- A18238E (See other available formats)
- Regulatory Status
- Other Names
- CD272, B- and T-lymphocyte attenuator, B- and T-lymphocyte-associated protein
- Rat IgG2a, κ
- Ave. Rating
- Submit a Review
- Product Citations
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BTLA (B and T lymphocyte attenuator, CD272) is a type I transmembrane glycoprotein with four extracellular cysteine-rich domains. It is an inhibitory molecule structurally and functionally similar to cytotoxic T lymphocyte antigen-4 (CTLA-4) and programmed death-1 (PD-1). These molecules belong to the immunoglobulin superfamily that binds B7 family members. Different from CTLA-4 and PD-1 binding with the B7 family members, BTLA interacts with herpes virus entry mediator (HVEM) which belongs to TNFR family. BTLA/HVEM interaction was the first demonstration of crosstalk between these two family members. BTLA/HVEM interaction negatively modulates T cell activation. HVEM induces BTLA tyrosine phosphorylation and inhibits T-cell proliferation. There is accumulating evidence suggesting that BTLA/HVEM signaling also plays an important role in autoimmunity and infection at mucosal surfaces. The BTLA/HVEM interaction does not prevent the simultaneous binding of other HVEM ligands such as LIGHT or Lymphotoxin-alpha. BTLA is expressed on T cells, B cells, macrophages, dendritic cells, and natural killer cells. Constitutive expression level of BTLA on resting T cells are very low, but increase after the activation of T cells. BTLA is highly expressed on resting B cells.Product Details
- Verified Reactivity
- Antibody Type
- Host Species
- Recombinant mouse CD272 (BTLA)
- 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.
Block - Quality tested
- Recommended Usage
Each lot of this antibody is quality control tested by blocking the binding between mouse BTLA-Fc chimera and mouse HVEM-Fc chimera. Ultra-LEAFTM purified anti-mouse CD272 (BTLA) antibody blocks the binding of 0.03 µg/mL recombinant mouse HVEM-Fc chimera to 1 µg/mL immobilized recombinant mouse BTLA-Fc chimera. ND50 range: 0.08 – 0.5 µg/mL. It is recommended that the reagent be titrated for optimal performance for each application.
AB_2904452 (BioLegend Cat. No. 941803)
AB_2904452 (BioLegend Cat. No. 941804)
- An Ig superfamily co-inhibitory receptor with structural similarity to programmed cell death 1 (PD-1) and CTLA-4
Lymphocytes, T cells, B cells, macrophages, dendritic cells, NKT cells and natural killer cells.
- 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, Macrophages, NK cells, NKT cells, T cells
- Biology Area
- Adaptive Immunity, Immunology, Innate Immunity
- Molecular Family
- Immune Checkpoint Receptors
- Antigen References
- Watanabe N, et al. 2003. Nat. Immunol. 4: 670-9
- Gavrieli M, et al. 2003. Biochem. Biophys. Res. Commun. 312: 1236-43
- Gonzalez LC, et al. 2005. Proc. Natl. Acad. Sci. 102: 1116-21
- Sedy JR, et al. 2005. Nat. Immunol. 6: 90-8
- Murphy KM, et al. 2006. Nat. Rev. Immunol. 6: 671-81
- Gene ID
- 208154 View all products for this Gene ID
- View information about CD272 on UniProt.org
- 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.
|Ultra-LEAF™ Purified anti-mouse CD272 (BTLA) Antibody||A18238E||Block|
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