Key Product Details

Species Reactivity

Human

Applications

Flow Cytometry

Label

Alexa Fluor 594 (Excitation = 590 nm, Emission = 617 nm)

Antibody Source

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

Product Specifications

Immunogen

Human embryonic kidney cell, HEK293-derived human LILRB3/CD85a/ILT5
Gly24-Glu443
Accession # O75022

Specificity

Detects human LILRB3/CD85a/ILT5 in direct ELISA.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Applications for Human LILRB3/CD85a/ILT5 Alexa Fluor® 594‑conjugated Antibody

Application
Recommended Usage

Flow Cytometry

Titration recommended for optimal concentration with starting range of 0.1-1 µg/1 million cells. Sample used for this experiment was PBMCs with CD14 costain.

Spectra Viewer

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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

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® 594‑conjugated Antibody

Certificate of Analysis

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Product Specific Notices for Human LILRB3/CD85a/ILT5 Alexa Fluor® 594‑conjugated Antibody


This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.

For research use only

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