Human CD45RB Alexa Fluor™ Plus 488-conjugated Antibody

R&D Systems, part of Bio-Techne | Catalog # FAB11434AFP488

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FAB11434AFP488-100UG
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Key Product Details

Species Reactivity

Human

Applications

Flow Cytometry, Immunocytochemistry

Label

Alexa Fluor Plus 488 (Excitation = 493 nm, Emission = 518 nm)

Antibody Source

Monoclonal Mouse IgG1 Clone # 1068228

View all CD45RB Antibodies »

Product Specifications

Immunogen

Chinese Hamster Ovary cell line, CHO-derived human CD45RB

Specificity

Detects human CD45RB in direct ELISA.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Applications for Human CD45RB Alexa Fluor™ Plus 488-conjugated Antibody

Application
Recommended Usage

Flow Cytometry

Optimal dilution of this antibody should be experimentally determined.

Immunocytochemistry

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: CD45RB

CD45, previously called LCA (leukocyte common antigen), T200, or Ly5 in mice, is member C of the class 1 (receptor-like) protein tyrosine phosphatase family (PTPRC) (1, 2). It is a variably glycosylated 180-220 kDa transmembrane protein that is abundantly expressed on all nucleated cells of hematopoietic origin (1-3). Multiple splicing isoforms of exon 4 (A), 5 (B), and 6 (C) are expressed according to cell type, developmental stage and antigenic exposure (1-5). The longest form, CD45RABC (called B220 in mouse) is expressed on B lymphocytes and the shortest form, CD45R0 is expressed on memory cells (5). Isoform CD45RB contains exon 5 (B exon) in the extracellular domain, which shares 41% and 40% homology with the ECD of mouse and rat CD45RB. CD45 has been best studied in T cells, where it determines T cell receptor signaling thresholds (3, 6-8). CD45 is moved into or out of the immunological synapse (IS) membrane microdomain depending on the relative influence of interaction with the extracellular galectin lattice or the intracellular actin cytoskeleton (9, 10). Interaction of galaction can be fine-tuned by varying usage of the heavily O-glycosylated spliced regions and sialylation of N-linked carbohydrates of CD45 (4, 9). Within the immunological synapse, CD45 dephosphorylates and negatively regulates the Src family kinase, Lck (8-10). In other leukocytes, CD45 influences differentiation and links immunoreceptor signaling with cytokine secretion and cell survival, partially overlapping in function with DEP-1/CD148 (11-14). CD45 deletion causes in severe immunodeficiency, while point mutations may be associated with autoimmune disorders (6, 7).

References

  1. Anderson, J.N. et al. (2004) FASEB J. 18:8.
  2. Streuli, M. et al. (1987) J. Exp. Med. 166:1548.
  3. Hermiston, M.L. et al. (2003) Annu. Rev. Immunol. 21:107.
  4. Earl, L.A. and L.G. Baum (2008) Immunol. Cell Biol. 86:608.
  5. Ralph, S.J. et al. (1987) EMBO J. 6:1251.
  6. Falahti, R. and D. Leitenberg (2008) J. Immunol. 181:6082.
  7. Tchilian, E.Z. and P.C.L. Beverley (2006) Trends Immunol. 27:146.
  8. McNiell, L. et al. (2007) Immunity 27:425.
  9. Chen, I-J. et al. (2007) J. Biol. Chem. 282:35361.
  10. Freiberg, B.A. et al. (2002) Nat. Immunol. 3:911.
  11. Zhu, J.W. et al. (2008) Immunity 28:183.
  12. Huntington, N.D. et al. (2006) Nat. Immunol. 7:190.
  13. Hesslein, D.G. et al. (2006) Proc. Natl. Acad. Sci. USA 103:7012.
  14. Cross, J.L. et al. (2008) J. Immunol. 180:8020.

Long Name

CD45R, B isoform

Alternate Names

B220, CD45 antigen, CD45R, EC 3.1.3.48, L-CA, LY5, protein tyrosine phosphatase, receptor type, C, receptor-type tyrosine-protein phosphatase C, T200 glycoprotein, T200 leukocyte common antigen, T200receptor type, c polypeptide

Entrez Gene IDs

5788 (Human); 19264 (Mouse)

Gene Symbol

PTPRC

UniProt

P08575

Additional CD45RB Products

Product Documents

Product Datasheets

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human CD45RB Alexa Fluor™ Plus 488-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

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