Human B- and T-lymphocyte attenuator(BTLA) ELISA kit

Code CSB-EL002868HU
Size 96T,5×96T,10×96T
Trial Size 24T ELISA Kit Trial Size (Only USD$150/ kit)
* The sample kit cost can be deducted from your subsequent orders of 96T full size kits of the same analyte at 1/5 per kit, until depleted in 6 months. Apply now
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Product Details

Target Name
B and T lymphocyte associated
Alternative Names
B and T lymphocyte associated protein ELISA Kit; B and T lymphocyte attenuator ELISA Kit; B and T lymphocyte associated ELISA Kit; B- and T-lymphocyte attenuator ELISA Kit; B- and T-lymphocyte-associated protein ELISA Kit; BTLA ELISA Kit; BTLA_HUMAN ELISA Kit; BTLA1 ELISA Kit; CD272 ELISA Kit; CD272 antigen ELISA Kit; FLJ16065 ELISA Kit; MGC129743 ELISA Kit
Uniprot No.
Homo sapiens (Human)
Sample Types
serum, plasma, tissue homogenates
Detection Range
0.45 ng/mL-30 ng/mL
0.11 ng/mL
Assay Time
Sample Volume
Detection Wavelength
450 nm
Research Area
Assay Principle
Intra-assay Precision (Precision within an assay): CV%<8%      
Three samples of known concentration were tested twenty times on one plate to assess.  
Inter-assay Precision (Precision between assays): CV%<10%      
Three samples of known concentration were tested in twenty assays to assess.    
To assess the linearity of the assay, samples were spiked with high concentrations of human BTLA in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
  Sample Serum(n=4)  
1:1 Average % 87  
Range % 83-95  
1:2 Average % 98  
Range % 92-103  
1:4 Average % 108  
Range % 102-115  
1:8 Average % 95  
Range % 87-100  
The recovery of human BTLA spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
Sample Type Average % Recovery Range  
Serum (n=5) 97 92-102  
EDTA plasma (n=4) 99 96-106  
Typical Data
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
ng/ml OD1 OD2 Average Corrected  
30 2.167 2.247 2.207 2.107  
15 1.532 1.456 1.494 1.394  
7.5 0.928 0.954 0.941 0.841  
3.75 0.589 0.579 0.584 0.484  
1.8 0.387 0.401 0.394 0.294  
0.9 0.286 0.274 0.280 0.180  
0.45 0.193 0.199 0.196 0.096  
0 0.101 0.099 0.100    
and FAQs
Store at 2-8°C. Please refer to protocol.
Lead Time
3-5 working days after you place the order, and it takes another 3-5 days for delivery via DHL or FedEx

This Human BTLA ELISA Kit was designed for the quantitative measurement of Human BTLA protein in serum, plasma, tissue homogenates. It is a Sandwich ELISA kit, its detection range is 0.45 ng/mL-30 ng/mL and the sensitivity is 0.11 ng/mL.

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"Is it possible to know how the standard protein attach to wells of the plate form kit CSB-EL002868HU ?
Is the plate pre-treated with an anti-tag antibody ?Or is it simply adsorption to plastic ?"

Thanks for your mail.
This kit uses the double antibody sandwich method, in which the enzyme plate is already pre-coated(mouse monoclonal antibody, physical adsorption),
and then adding the standard/sample (standard: 293 cell-derived recombinant protein).
At this time, the standard/sample and the enzyme labeling antibody that the package is taken to produce the specific reaction of antigen antibody, then the incubate but not wash the plate, after this, adding Biotin- antibody(detection antibody: rat monoclonal), thus it forms the double antibody sandwich principle. Specific experimental principles (principle of the ASSAY) and operating procedures (ASSAY PROCEDURE),pls refer to the attached manual. I will send you manual reference by email later.

Target Background

(From Uniprot)
Inhibitory receptor on lymphocytes that negatively regulates antigen receptor signaling via PTPN6/SHP-1 and PTPN11/SHP-2. May interact in cis (on the same cell) or in trans (on other cells) with TNFRSF14. In cis interactions, appears to play an immune regulatory role inhibiting in trans interactions in naive T cells to maintain a resting state. In trans interactions, can predominate during adaptive immune response to provide survival signals to effector T cells.
Gene References into Functions
  1. Data suggest that both HVEM and UL144 bind a common epitope of BTLA, whether engaged in trans or in cis; these studies were conducted in cell lines representing B-lymphocytes, T-lymphocytes, and natural killer cells. (HVEM = human herpes virus entry mediator; UL144 = membrane glycoprotein UL144 of Human herpesvirus 5; BTLA = human B- and T-lymphocyte attenuator) PMID: 29061848
  2. our data suggested that the BTLA/HVEM pathway contributes to peripheral T cell suppression in hepatocellular carcinoma patients PMID: 30116751
  3. data provide the first evidence that increased BTLA predicts poor prognosis in patients with diffuse large B-cell lymphoma (DLBCL), and blockade of BTLA with other checkpoints may potentially represent a new strategy for immunotherapy of DLBCL. PMID: 29353075
  4. The genetic variants of rs76844316 in BTLA influence the susceptibility to severe chronic hepatitis B and might play a protective role against the progression of chronic hepatitis B. PMID: 29558758
  5. The impairment of Bregs and CD19+/BTLA+ cells could play an important pathogenic role in multiple sclerosis (MS). PMID: 27412504
  6. Our data portrays BTLA as a molecule with the singular ability to provide both costimulatory and coinhibitory signals to activated CD8(+) T cells, resulting in extended survival, improved tumor control, and the development of a functional recall response. PMID: 28754817
  7. results indicate that polymorphisms rs1982809 situated in 3' UTR nearby region of BTLA gene might be considered as low-penetrating risk factor for RCC, but results have to be confirmed in further studies PMID: 27234378
  8. The percentage of circulating BTLA+CD4+ lymphocytes was significantly higher in patients with severe community acquired pneumonia. PMID: 28164546
  9. Plasma concentrations of soluble BTLA were increased early in sepsis/septic shock and correlated to severity of disease. A baseline concentration >21ng/mL was associated with a poor prognosis. PMID: 28056053
  10. this study shows that in chronic hepatitis B virus patients, a subset of inefficient interferon-gamma producing antigen-specific CD8+ T cells recruited to the liver expressed high BTLA levels PMID: 27743606
  11. this study shows that BTLA expression is likely associated with positive rather than conventional negative regulation of CD11c antigen-presenting cell stimulatory capacity PMID: 27717503
  12. rs1982809 BTLA gene polymorphism is associated with mRNA expression level and variations in the BTLA gene might be considered as potentially low-penetrating chronic lymphocytic leukemia risk factor PMID: 27933341
  13. Study showed a decreased expression of BTLA in ocular Behcet's disease suggesting that it may be involved in the development and recurrence of this disease. PMID: 26841832
  14. BTLA expression declines on B cells of the aged and is associated with low responsiveness to the trivalent influenza vaccine. PMID: 26277622
  15. our study confirms that CD200/BTLA deletions are recurrent genetic lesions in the biology of BCP-ALL PMID: 26137961
  16. Focal deletions of the BTLA were associated with B-cell precursor acute lymphoblastic leukemia. PMID: 25261097
  17. high BTLA expression levels in gastric cancer, identified by IHC, are an independent biomarker for the poor prognosis of patients with gastric cancer. PMID: 25334051
  18. Data indicate taht lung function and the expressions of B, T lymphocyte attenuator (BTLA) and Treg cells were lower in patients with rheumatism than those in normal controls. PMID: 24909289
  19. BTLA is a coreceptor that negatively regulates human Vgamma9Vdelta2 T-cell proliferation and has a role in immune escape for lymphoma cells PMID: 23692853
  20. BTLA and HVEM may have roles in graft rejection after kidney transplantation PMID: 23375291
  21. BTLA regulates human B cell responses and has implications for future development of therapies modulating B cells. PMID: 22903545
  22. The expression of BTLA has been observed on the surface of several kinds of cells within synovial tissues of RA patients, which indicates this signal might be involved in the regulation of local T cell activation and the pathogenesis of RA. PMID: 22691359
  23. These findings support role for BTLA and/or HVEM as potential, novel diagnostic markers of innate immune response/status and as therapeutic targets of sepsis. PMID: 22459947
  24. study described the expression and spatial distribution of HVEM and BTLA in rheumatoid arthritis synovial tissues, and results indicated that HVEM/BTLA may be involved in regulating the progress of joint inflammation PMID: 22179929
  25. BTLA-HVEM interactions impair minor histocompatibiility antigen-specific T cell functionality, providing a rationale for BTLA signaling blockade in post-stem cell transplantation. PMID: 22634623
  26. Added with PD-1 and Tim-3 blockades, BTLA blockade enhanced the expansion, proliferation, and cytokine production of NY-ESO-1-specific CD8(+) T cells. PMID: 22205715
  27. HVEM-BTLA cis complex provides intrinsic regulation in T cells serving as an interference mechanism silencing signals coming from the microenvironment. PMID: 21920726
  28. The results of a mutagenesis study of HVEM suggest that the CD160 binding region on HVEM was slightly different from, but overlapped with, the BTLA binding site. PMID: 21959263
  29. 590C single-nucleotide polymorphism of B- and T-lymphocyte attenuator was significantly associated with susceptibility to rheumatoid arthritis, but not to systemic lupus erythematosus or Sjogren's syndrome. PMID: 21403914
  30. BTLA expression on overall CD4(+) and CD8(+) T cells was progressively decreased in HIV-1 infection, which was directly correlated with disease progression and CD4(+) T-cell differentiation and activation PMID: 21592997
  31. In vitro blockade of the BTLA pathway augments allogeneic as well as cytomegalovirus-specific CD8-positive T cell proliferation, thereby enhancing the functional capacity of cytotoxic T lymphocytes in viral infections. PMID: 20693422
  32. BTLA gene polymorphisms may affect the sporadic breast cancer risk and prognosis in Chinese women in northeast of Heilongjiang Province PMID: 19585237
  33. Binding of HVEM to BTLA attenuates T cell activation, identifying HVEM/BTLA as a coinhibitory receptor pair. PMID: 15647361
  34. distinct herpesviruses target the HVEM-BTLA cosignaling pathway, suggesting the importance of this pathway in regulating T cell activation during host defenses. PMID: 16131544
  35. 2.8-A crystal structure of the BTLA-HVEM complex shows that BTLA binds the N-terminal cysteine-rich domain of HVEM and employs a unique binding surface PMID: 16169851
  36. BTLA is constitutively expressed on most CD4+ and CD8+ T cells and its expression progressively decreases upon T cell activation. PMID: 16643847
  37. Cross-linking of BTLA with mAb 7D7 suppressed T lymphocyte proliferation, downregulated the expression of T cell activation marker CD25, and inhibited the production of interferon (IFN)-gamma, interleukin (IL)-2, IL-4, and IL-10. PMID: 17257317
  38. BTLA is an inhibitory coreceptor of the B cell receptor (BCR) signaling pathway that attenuates B cell activation by targeting the downstream signaling molecules Syk and B cell linker protein (BLNK). PMID: 19155498
  39. this study did not find any genetic contribution of the BTLA gene to the development of T1D and SLE in Japanese population. PMID: 19207938
  40. results suggest that down-regulation of the BTLA-HVEM pathway may be involved in germinal center B-cell activation. PMID: 19762537
  41. the HVEM-BTLA cis-complex competitively inhibits HVEM activation by ligands expressed in the surrounding microenvironment, thus helping maintain T cells in the naive state. PMID: 19915044
  42. HVEM binds to B T lymphocyte attenuator (BTLA), an Ig family member, which inhibits T cell proliferation. PMID: 15568026

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Subcellular Location
Cell membrane; Single-pass type I membrane protein.
Database Links

HGNC: 21087

OMIM: 607925

KEGG: hsa:151888

STRING: 9606.ENSP00000333919

UniGene: Hs.445162

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