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AB281021

重组Anti-CD21抗体[EPR23977-87] - BSA and Azide free (Detector)

Anti-CD21 antibody [EPR23977-87] - BSA and Azide free (Detector)

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(1 Publication)

Rabbit Recombinant Monoclonal CD21 antibody. Carrier free. Suitable for sELISA and reacts with Human samples. Cited in 1 publication.

查看别名

CD21, C3DR, CR2, Complement receptor type 2, Cr2, Complement C3d receptor, Epstein-Barr virus receptor, EBV receptor

1 Images
Sandwich ELISA - Anti-CD21 antibody [EPR23977-87] - BSA and Azide free (Detector) (AB281021)
  • sELISA

Supplier Data

Sandwich ELISA - Anti-CD21 antibody [EPR23977-87] - BSA and Azide free (Detector) (AB281021)

Example of Human CD21 standard curve. Background-subtracted data values (mean +/- SD) are graphed.

关键信息

宿主种属

Rabbit

克隆

Monoclonal

克隆号

EPR23977-87

亚型

IgG

不含载体蛋白

Yes

反应种属

Human

应用

sELISA

applications

免疫原

The exact immunogen used to generate this antibody is proprietary information.

反应性数据

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "sELISA" : {"fullname" : "Sandwich ELISA", "shortname":"sELISA"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "sELISA-species-checked": "guaranteed", "sELISA-species-dilution-info": "", "sELISA-species-notes": "<p></p>" } } }

产品详情

ab281021 is a BSA and Azide Free antibody supplied in an unconjugated format and it is suitable for sandwich ELISAs to quantify Human CR2. The recommended pair for sandwich ELISA is:
Capture: ab281171, Human CR2 Capture Antibody (unconjugated)
Detector: ab281021, Human CR2 Detector Antibody (unconjugated)
The reference range value is 31.25 - 4000 pg/ml.

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

Sandwich ELISA
The recommended antibody orientation is based on internal optimization for ELISA-based assays. Antibody orientation is assay dependent and needs to be optimized for each assay type. Please note that the range provided for this antibody is only an estimation based on the performance of the product using the recommended antibody pair. Performance of the antibody pair will depend on the specific characteristics of your assay. We guarantee the product works in sandwich ELISA, but we do not guarantee the sensitivity or dynamic range of the antibody in your assay.

性能和储存信息

形式
Liquid
纯化工艺
Affinity purification Protein A
存储溶液
Constituents: PBS
运输条件
Blue Ice
推荐的短期储存条件
+4°C
推荐的长期储存条件
+4°C

补充信息

This supplementary information is collated from multiple sources and compiled automatically.

CD21 also known as complement receptor type 2 (CR2) or BU32 is a protein primarily expressed on the surface of B cells and some T cells. It functions as a receptor for complement component C3d EBV (Epstein-Barr Virus) and IFN-α. CD21 weighs approximately 145 kDa and belongs to the membrane protein family. Detection of CD21 can be done via immunohistochemistry (IHC) and blood tests. This marker is valuable for identifying cell populations that have roles in immune responses.
Biological function summary

Complement receptor type 2 is key in the immune system by facilitating B cell activation and proliferation. CD21 forms complexes with CD19 and CD81 increasing the sensitivity of B cells to antigens. This interaction enhances signal transduction enabling B lymphocytes to respond effectively to pathogens. The protein also plays a role in regulating immune tolerance and maintaining humoral immunity being important not only in immune defense but also in preventing autoimmunity.

Pathways

CD21 interacts with complement activation and immune response pathways. It connects with CD19 in a pivotal role where it further amplifies signaling in B lymphocytes. This interaction strengthens the downstream signaling of BCR (B cell receptor) important for antibody production. CD21 contributes to bridging the innate and adaptive immunological pathways by engaging components like C3d.

CD21 shows significant relevance in systemic lupus erythematosus (SLE) and some B cell lymphomas. Deficiencies or mutations in CD21 can lead to defective immune responses and increased susceptibility to autoimmune conditions such as SLE where CD19 is also implicated. Furthermore in Epstein-Barr Virus infections CD21 serves as an entry receptor facilitating pathogen establishment which can result in chronic conditions or even malignancies.

产品实验方案

For this product, it's our understanding that no specific protocols are required. You can visit:

靶点信息

Serves as a receptor for various ligands including complement component CD3d, HNRNPU OR IFNA1 (PubMed : 1849076, PubMed : 21527715, PubMed : 7753047). When C3d is bound to antigens, attaches to C3d on B-cell surface and thereby facilitates the recognition and uptake of antigens by B-cells (PubMed : 21527715). This interaction enhances B-cell activation and subsequent immune responses. Forms a complex with several partners on the surface of B-cells including CD19, FCRL5 and CD81, to form the B-cell coreceptor complex that plays a crucial role in B-cell activation and signaling (PubMed : 1383329, PubMed : 30107486). Also induces specific intracellular signaling separately from the BCR and CD19 by activating the tyrosine kinase SRC, which then phosphorylates nucleolin/NCL and triggers AKT and GSK3 kinase activities in a SYK/CD19-independent manner (PubMed : 12938232). Acts as a ligand for CD23 (FcepsilonRII), a low-affinity receptor for IgE, which is expressed on B-cells and other immune cells, and thus participates in the regulation of IgE production (PubMed : 1386409).. (Microbial infection) Acts as a receptor for Epstein-Barr virus.
See full target information CR2

文献 (1)

Recent publications for all applications. Explore the full list and refine your search

PLoS pathogens 20:e1012725 PubMed39585899

2024

N6-methyladenosine RNA modification promotes Severe Fever with Thrombocytopenia Syndrome Virus infection.

Applications

Unspecified application

Species

Unspecified reactive species

Zhiqiang Chen,Jinyu Zhang,Jun Wang,Hao Tong,Wen Pan,Feng Ma,Qihan Wu,Jianfeng Dai
View all publications

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