FCRL5/FCRL3 Antibody (307307) [Alexa Fluor® 488]

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications Flow
Clone
307307
Clonality
Monoclonal
Host
Mouse
Conjugate
Alexa Fluor 488
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.

FCRL5/FCRL3 Antibody (307307) [Alexa Fluor® 488] Summary

Immunogen
Mouse myeloma cell line NS0-derived recombinant human FCRL5/FCRL3
Gln16-Arg844
Accession # AAI01067
Specificity
Detects human FCRL5/FCRL3 in direct ELISAs. In direct ELISAs, 100% cross-reactivity with recombinant human (rh) FCRL3 is observed and no cross-reactivity with rhFCRL1, 2, or 4 is observed.
Isotype
IgG2b
Clonality
Monoclonal
Host
Mouse
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

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 FCRL5/FCRL3 Antibody (307307) [Alexa Fluor® 488]

  • FCRL5/FCRL3

Background

Fc Receptor-Like 5 (FCRL5), also known as FcRH5, IRTA2, and CD307, is a 120 kDa protein with sequence homology to classical Fc receptors. The type 1 transmembrane FCRL proteins contain from three to nine immunoglobulin-like domains. They are differentially expressed within the B cell lineage and can either promote or inhibit B cell proliferation and activation (1, 2). According to R&D Systems testing, FCRL5 binds to purified human IgG with high affinity. Mature human FCRL5 consists of a 836 amino acid (aa) extracellular domain (ECD) with nine Ig-like domains, a 21 aa transmembrane segment, and a 105 aa cytoplasmic domain with one immunotyrosine activation motif (ITAM) and two immunotyrosine inhibitory motifs (ITIMs) (1, 3). Mouse FCRL5 contains only five Ig-like domains in its ECD. It shares 49% aa sequence identity with human FCRL5 within common regions. Alternate splicing of human FCRL5 generates isoforms that consist of approximately the first one, six, or eight Ig-like domains (3, 4). FCRL5 expression is restricted to mature B lineage cells in lymphoid tissues and blood (3, 5‑7). Its ligation inhibits signaling through the B cell antigen receptor (8). Epstein-Barr virus transformation of B cells induces the up‑regulation of surface FCRL5 by a direct effect of its EBNA2 protein on FCRL5 gene transcription (9). The FCRL5 gene maps to the 1q21 chromosomal locus, a common site of rearrangements in B cell malignancies, and the FCRL5 protein is preferentially expressed in cell lines with 1q21 abnormalities (3). FCRL5 is up‑regulated on tumor cells in some types of B cell malignancies (6, 10‑12). In addition, soluble FCRL5 is elevated in the serum of many B cell leukemia patients (11, 13).

  1. Davis, R.S. (2007) Annu. Rev. Immunol. 25:525.
  2. Maltais, L.J. et al. (2006) Nat. Immunol. 7:431.
  3. Hatzivassiliou, G. et al. (2001) Immunity 14:277.
  4. SwissProt # Q96RD9.
  5. Miller, I. et al. (2002) Blood 99:2662.
  6. Polson, A.G. et al. (2006) Int. Immunol. 18:1363.
  7. Vidal-Laliena, M. et al. (2005) Cell. Immunol. 236:6.
  8. Haga, C.L. et al. (2007) Proc. Natl. Acad. Sci. 104:9770.
  9. Mohan, J. et al. (2006) Blood 107:4433.
  10. Ise, T. et al. (2005) Clin. Cancer Res. 11:87.
  11. Ise, T. et al. (2007) Leukemia 21:169.
  12. Kazemi, T. et al. (2009) Cancer Immunol. Immunother. 58:989.
  13. Ise, T. et al. (2006) Clin. Chem. Lab. Med. 44:594.

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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Secondary Antibodies

 

Isotype Controls

Additional FCRL5/FCRL3 Products

Array FAB20871G

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