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Rabbit Recombinant Monoclonal CD21 antibody - conjugated to PE.

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Key facts

Isotype

IgG

Host species

Rabbit

Conjugation

PE

Excitation/Emission

Ex: 480;565nm, Em: 578nm

Storage buffer

pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: 98% PBS, 1% BSA

Form

Liquid

Clonality

Monoclonal

Immunogen

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

Reactivity data

Application

Antibody Labelling

Reactivity

Expected

Dilution info

-

Notes

-

Application

Target Binding Affinity

Reactivity

Expected

Dilution info

-

Notes

-

Associated Products

Select an associated product type

8 products for Alternative Version

Target data

Function

Receptor for complement C3, for the Epstein-Barr virus on human B-cells and T-cells and for HNRNPU (PubMed:7753047). Participates in B lymphocytes activation (PubMed:7753047).(Microbial infection) Acts as a receptor for Epstein-Barr virus.

Alternative names

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Rabbit Recombinant Monoclonal CD21 antibody - conjugated to PE.

Alternative names

Key facts

Isotype

IgG

Conjugation

PE

Excitation/Emission

Ex: 480;565nm, Em: 578nm

Form

Liquid

Clonality

Monoclonal

Immunogen
  • The exact immunogen used to generate this antibody is proprietary information.
Clone number

SP199

Purification technique

Affinity purification Protein A/G

Concentration
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Storage

Shipped at conditions

Blue Ice

Appropriate short-term storage duration

1-2 weeks

Appropriate short-term storage conditions

+4°C

Appropriate long-term storage conditions

+4°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle, Store in the dark

Notes

This conjugated primary antibody is “made to order” and it is released using a quantitative quality control method that ensures binding affinity and labelling efficiency of the conjugate. Via leveraging the power of the Lightning-Link® conjugation technology, Abcam will deliver highly consistent recombinant conjugates in <2 weeks, giving you access to an ever growing portfolio of antibody-label combinations.

For suitable applications and species reactivity, please refer to the unconjugated version of this clone.

This product is FOR RESEARCH USE ONLY. For commercial use, please contact partnerships@abcam.com.

This conjugated primary antibody is released using a quantitative quality control method that evaluates binding affinity post-conjugation and efficiency of antibody labeling.
For suitable applications and species reactivity, please refer to the unconjugated version of this clone. This conjugated antibody is eligible for the Abcam trial program.

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

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.

Supplementary info

Activity summary

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.

Associated diseases and disorders

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.

Product promise

We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.

In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

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    Product protocols

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

    Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

    For licensing inquiries, please contact partnerships@abcam.com