CD21 Antibody (544408) [Alexa Fluor® 594]

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications Flow
Clone
544408
Clonality
Monoclonal
Host
Mouse
Conjugate
Alexa Fluor 594
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.

CD21 Antibody (544408) [Alexa Fluor® 594] Summary

Immunogen
Chinese hamster ovary cell line CHO-derived recombinant human CD21
Ile21-Arg971
Accession # P20023
Specificity
Detects human CD21 in direct ELISAs and Western blots.
Isotype
IgG1
Clonality
Monoclonal
Host
Mouse
Gene
CR2
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Applications/Dilutions

Dilutions
  • Flow Cytometry 0.25-1 ug/10^6 cells
Application Notes
Flow Cytometry: Please use 0.25-1 ug of conjugated antibody per 10e6 cells.

Packaging, Storage & Formulations

Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Buffer
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Preservative
0.09% Sodium Azide
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for CD21 Antibody (544408) [Alexa Fluor® 594]

  • C3DR
  • C3DRSLEB9
  • CD21 antigen
  • CD21
  • Complement C3d receptor
  • complement component (3d/Epstein Barr virus) receptor 2
  • complement receptor type 2
  • CR2
  • EBV receptor
  • Epstein-Barr virus receptor

Background

CD21 (also called EBV receptor or CR2) is a 145 kDa member of the RCA (receptors of complement activation) family of proteins. It is expressed on T cells, B cells, and follicular dendritic cells. On the B cell surface, it combines with the BCR and CD19 to form a B cell activating complex. Mature human CD21 is 1013 amino acids (aa) in length. It is a type I transmembrane (TM) protein that contains a 951 aa extracellular domain (ECD) (aa 21-971) and a short 34 aa cytoplasmic tail. The ECD exhibits fifteen 60 aa SUSHI repeats. Soluble CD21 can be generated by cleavage near the TM domain. One potential splice variant shows a deletion of aa 847‑908, while another shows an insertion of 59 aa after Lys659. The ECD of human CD21 shares 71% aa identity with mouse CD21 ECD.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Bioinformatics Tool for CD21 Antibody (FAB4909T)

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Diseases for CD21 Antibody (FAB4909T)

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Blogs on CD21.

CD19: An Undoubted Biomarker for B Cells
CD19 is a cell surface protein member of the large immunoglobulin superfamily that complexes with CD21, CD81, and CD225 in the membrane of mature B-cells. A major function of CD19 is to assemble with the antigen receptor of B-lymphocytes to decrease t...  Read full blog post.

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Bioinformatics

Gene Symbol CR2
Uniprot