Mouse FCRLB/FCRY Alexa Fluor™ Plus 555‑conjugated Antibody

R&D Systems | Catalog # FAB4868AFP555

R&D Systems

Key Product Details

Species Reactivity

Mouse

Applications

Western Blot

Label

Alexa Fluor Plus 555 (Excitation = 558 nm, Emission = 572 nm)

Antibody Source

Monoclonal Rat IgG2A Clone # 465905
View all FCRLB/FCRY Primary Antibodies »

Product Specifications

Specificity

Detects mouse FCRLB/FCRY in direct ELISAs and Western blots. In Western blots, 75% cross-reactivity with recombinant human FCRLB is observed.

Clonality

Monoclonal

Host

Rat

Isotype

IgG2A

Applications for Mouse FCRLB/FCRY Alexa Fluor™ Plus 555‑conjugated Antibody

Application
Recommended Usage

Western Blot

Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Formulation

Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied

Background: FCRLB/FCRY

FCRLB, also known as FCRL2, FCRY, and FREB2, is a 60 kDa protein with sequence homology to classical Fc receptors. There are at least six type 1 transmembrane FCRL proteins and two that lack transmembrane segments. Each family member contains between three and nine immunoglobulin-like domains. FCRL proteins 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, FCRLB binds to purified mouse IgG. Mouse FCRLB shares 82% and 94% aa sequence identity with human and rat FCRLB, respectively. It contains a putative signal peptide, three immunoglobulin-like domains, and a mucin-like stalk that is rich in Pro, Ser, and Thr residues (1‑3). The stalk region also contains di-Leu motifs and an unpaired cysteine (1‑4). When expressed in transfectants, FCRLB is not secreted but shows a diffuse intracellular localization (4, 5). FCRLB is expressed at a low level in placenta and in B lineage cells of the germinal center (4, 5). It is upregulated in B cells by BAFF and LPS (3). Among non‑hematopoietic cells, FCRLB is expressed in fibroblasts, melanocytes, and melanoma (3, 4, 6). It is preferentially expressed in nonproliferating cells and at the onset of apoptosis (3, 5).

References

  1. Davis, R.S. (2007) Annu. Rev. Immunol. 25:525.
  2. Maltais, L.J. et al. (2006) Nat. Immunol. 7:431.
  3. Masuda, K. et al. (2005) Gene 363:32.
  4. Chikaev, N.A. et al. (2005) Genomics 85:264.
  5. Wilson, T.J. and M. Colonna (2005) Genes Immun. 6:341.
  6. Inozume, T. et al. (2005) Int. J. Cancer 114:283.

Long Name

Fc Receptor-like B

Alternate Names

FcRL2, FCRLM2, FCRLY, FCRY, FREB-2

Entrez Gene IDs

127943 (Human); 435653 (Mouse); 498275 (Rat)

Gene Symbol

FCRLB

UniProt

Q5DRQ8

Additional FCRLB/FCRY Products

Product Documents for Mouse FCRLB/FCRY Alexa Fluor™ Plus 555‑conjugated Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Mouse FCRLB/FCRY Alexa Fluor™ Plus 555‑conjugated Antibody


This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

For research use only

Related Research Areas

B Cell Activation
Fc Receptors

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