JavaScript is disabled in your browser. Please enable JavaScript to view this website.
AB306327

HRP Anti-CD21 antibody [SP186] (C-terminal)

Be the first to review this product! Submit a review

|

(0 Publication)

Rabbit Recombinant Monoclonal CD21 antibody - conjugated to HRP. Suitable for Antibody Labelling, Target Binding Affinity, IHC-P, WB and reacts with Human, Mouse, Rat samples.

View Alternative Names

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

  • 578 PE

    PE Anti-CD21 antibody [SP186] (C-terminal)

  • 660 APC

    APC Anti-CD21 antibody [SP186] (C-terminal)

  • Alkaline Phosphatase

    Alkaline Phosphatase Anti-CD21 antibody [SP186] - C-terminal

  • 519 Alexa Fluor® 488

    Alexa Fluor® 488 Anti-CD21 antibody [SP186] - C-terminal

  • 665 Alexa Fluor® 647

    Alexa Fluor® 647 Anti-CD21 antibody [SP186] - C-terminal

  • 617 Alexa Fluor® 594

    Alexa Fluor® 594 Anti-CD21 antibody [SP186] - C-terminal

  • 565 Alexa Fluor® 555

    Alexa Fluor® 555 Anti-CD21 antibody [SP186] - C-terminal

  • 603 Alexa Fluor® 568

    Alexa Fluor® 568 Anti-CD21 antibody [SP186] - C-terminal

  • 775 Alexa Fluor® 750

    Alexa Fluor® 750 Anti-CD21 antibody [SP186] - C-terminal

  • Unconjugated

    Anti-CD21 antibody [SP186] - C-terminal

  • Carrier free

    Anti-CD21 antibody [SP186] - BSA and Azide free

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

SP186

Isotype

IgG

Conjugation

HRP

Excitation/Emission
Carrier free

No

Reacts with

Human, Mouse, Rat

Applications

IHC-P, Antibody Labelling, WB, Target Binding Affinity

applications

Immunogen

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

style
left-column

Complementary Products

Assay Kits

AB45909

Human CD21 ELISA Kit

Sandwich ELISA - Human CD21 ELISA Kit (AB45909)

  • 0
  • 0
Primary Antibodies

AB215912

Alexa Fluor® 647 Anti-CD31 antibody [JC/70A]

Immunocytochemistry - Alexa Fluor® 647 Anti-CD31 antibody [JC/70A] (AB215912)

  • 0
  • 1
Primary Antibodies

AB275738

Alexa Fluor® 488 Anti-CD11c antibody [EP1347Y]

RabMAb|Recombinant

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 488 Anti-CD11c antibody [EP1347Y] (AB275738)

  • 4
  • 1
Secondary Antibodies

AB150113

Goat Anti-Mouse IgG H&L (Alexa Fluor® 488)

Immunocytochemistry/ Immunofluorescence - Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) (AB150113)

  • 5
  • 15
Primary Antibodies

AB198941

Alexa Fluor® 488 Anti-CD20 antibody [EP459Y]

RabMAb|Recombinant

Flow Cytometry (Intracellular) - Alexa Fluor® 488 Anti-CD20 antibody [EP459Y] (AB198941)

  • 4
  • 2
style
left-column

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "AntibodyLabelling" : {"fullname" : "Antibody Labelling", "shortname":"Antibody Labelling"}, "TargetBindingAffinity" : {"fullname" : "Target Binding Affinity", "shortname":"Target Binding Affinity"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "AntibodyLabelling-species-checked": "guaranteed", "AntibodyLabelling-species-dilution-info": "", "AntibodyLabelling-species-notes": "", "TargetBindingAffinity-species-checked": "guaranteed", "TargetBindingAffinity-species-dilution-info": "", "TargetBindingAffinity-species-notes": "", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "WB-species-checked": "guaranteed", "WB-species-dilution-info": "", "WB-species-notes": "<p></p>" }, "Mouse": { "AntibodyLabelling-species-checked": "guaranteed", "AntibodyLabelling-species-dilution-info": "", "AntibodyLabelling-species-notes": "", "TargetBindingAffinity-species-checked": "guaranteed", "TargetBindingAffinity-species-dilution-info": "", "TargetBindingAffinity-species-notes": "", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "WB-species-checked": "predicted", "WB-species-dilution-info": "", "WB-species-notes": "" }, "Rat": { "AntibodyLabelling-species-checked": "guaranteed", "AntibodyLabelling-species-dilution-info": "", "AntibodyLabelling-species-notes": "", "TargetBindingAffinity-species-checked": "guaranteed", "TargetBindingAffinity-species-dilution-info": "", "TargetBindingAffinity-species-notes": "", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "WB-species-checked": "guaranteed", "WB-species-dilution-info": "", "WB-species-notes": "<p></p>" } } }
style
left-column

Product details

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.

How are conjugated primary antibodies validated?
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.

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.

style
left-column

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A/G
Storage buffer
pH: 7.4 Preservative: 0.1% Proclin 300 Solution Constituents: PBS, 30% Glycerol (glycerin, glycerine), 1% BSA
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
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle|Store in the dark
style
left-column

Supplementary information

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.
style
left-column
style
left-column

Product protocols

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

Target data

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
style
left-column
style
left-column
style
right-column

Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.
For full details, please see our Terms & Conditions

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