Human LILRB3/CD85a/ILT5 Alexa Fluor™ Plus 555‑conjugated Antibody

R&D Systems | Catalog # FAB18061AFP555

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Key Product Details

Species Reactivity

Human

Applications

Flow Cytometry

Label

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

Antibody Source

Monoclonal Mouse IgG1 Clone # 1057017
View all LILRB3/CD85a/ILT5 Primary Antibodies »

Product Specifications

Specificity

Detects human LILRB3/CD85a/ILT5 in direct ELISA.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Applications for Human LILRB3/CD85a/ILT5 Alexa Fluor™ Plus 555‑conjugated Antibody

Application
Recommended Usage

Flow Cytometry

Optimal dilution of this antibody should be experimentally determined.

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Flow Cytometry

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: LILRB3/CD85a/ILT5

Leukocyte immunoglobulin-like receptor subfamily B (LILRB3), also known as ILT5, LIR3, and CD85a, is an immunoglobulin superfamily member that is involved in immune regulation. Subfamily B members have cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs) that inhibit signaling events via phosphatase SHP-1. Subfamily A members are activating receptors that lack ITIMs and signal through association with FcR gamma (1, 2). Mature LILRB3 is a highly polymorphic 85‑95 kDa glycoprotein that consists of a 420 amino acid (aa) extracellular domain (ECD) with four Ig-like domains, a 21 aa transmembrane segment, and a 167 aa cytoplasmic domain with three ITIMs (3). Alternative splicing generates an isoform with a 17 aa insertion in the juxtamembrane ECD. In mouse and rat, the LILRB3 gene encodes the PIR-B protein which has six Ig-like domains. Rodent PIR-B and human LILRB3 share 55% aa sequence identity within common regions of their ECDs. LILRB3 is expressed on the surface of peripheral monocytes, neutrophils, eosinophils, basophils, and mast cell progenitors (4-6). Triggering of LILRB3 inhibits the activation of macrophages, mast cells, neutrophils, basophils, and B cells (5, 7). On osteoclast precursors, LILRB3 ligation inhibits RANK L/TRANCE or M-CSF induced differentiation (8). LILRB3 can also bind to ligands exposed on necrotic tumor cells (9). Both PIR-B and LILRB3 are receptors for S. aureus, and activation of these receptors by bacteria influences the innate immune response triggered by TLRs (3). R&D Systems in-house testing indicates that LILRB3 binds to
Angiopoietin-like 7, consistent with the demonstrated functional interactions between other members of these protein families (10). In the mouse CNS, PIR-B functions as a receptor for the myelin proteins Nogo, MAG, and OMgp and mediates their inhibitory action on neurite outgrowth and axon regeneration (11). Upon binding to MAG, PIR-B associates with TrkB and NGF R/p75 in cerebellar granule neurons (12).

References

  1. Thomas, R. et al. (2010) Clin. Rev. Allergy Immunol. 38:159.
  2. Anderson, K.J. and R.L. Allen (2009) Immunology 127:8.
  3. Nakayama, M. et al. (2007) J. Immunol. 178:4250.
  4. Tedla, N. et al. (2003) Proc. Natl. Acad. Sci. USA 100:1174.
  5. Sloane, D.E. et al. (2004) Blood 104:2832.
  6. Tedla, N. et al. (2008) J. Leukoc. Biol. 83:334.
  7. Uehara, T. et al. (2001) J. Clin. Invest. 108:1041.
  8. Mori, Y. et al. (2008) J. Immunol. 181:4742.
  9. Jones, D.C. et al. (2016) Oncotarget PMID 26769854.
  10. Zheng, J. et al. (2012) Nature 485:656.
  11. Atwal, J.K. et al. (2008) Science 322:967.
  12. Fujita, Y. et al. (2011) Cell Death Dis. 2:e198.

Alternate Names

CD85a, ILT5, LIR3

Entrez Gene IDs

11025 (Human)

Gene Symbol

LILRB3

UniProt

O75022 (Human)

Additional LILRB3/CD85a/ILT5 Products

Product Documents for Human LILRB3/CD85a/ILT5 Alexa Fluor™ Plus 555‑conjugated Antibody

Certificate of Analysis

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Product Specific Notices for Human LILRB3/CD85a/ILT5 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

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