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Mouse Monoclonal to CD170 / Siglec-5

1A5 (IgG1)

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Background

CD170, also known as Siglec 5 (sialic acid binding Ig-like lectin 5) is a type 1 transmembrane glycoprotein containing two cytoplasmic immunoreceptor tyrosine inhibitory motifs (ITIMs). CD170 forms homodimers and functions as an inhibitory receptor able to downregulate cell activation. It binds to alpha2,3- and alpha2,6-linked sialic acid ligands, e.g. on glycophorin A (CD235a). Aberrant expression of CD170 by CD34+ progenitor cells can be observed in case of acute myeloid leukemias.

Specificity

The mouse monoclonal antibody 1A5 recognizes CD170 (Siglec-5, sialic acid binding Ig-like lectin 5), a transmembrane glycoprotein expressed strongly by neutrophils, macrophages activated during infections, monocytes, and dendritic cells. As in case with other anti-CD170 antibodies, this antibody crossreacts with Siglec-14, whose first two Ig domains are almost identical to those of CD170.
HLDA VII; WS Code 70443

Regulatory Status

Immunogen

Fusion protein composed of human CD170 extracellular domain and Fc region of human IgG1

Species Reactivity:

  • Human
  • Non-Human Primates

Negative Species:

Applications:

  • Flow Cytometry
  • Immunoprecipitation
  • Immunohistochemistry (frozen sections)
  • Immunocytochemistry
  • ELISA
Usage note:
Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.

Product Specific References

  • *Avril T, Freeman SD, Attrill H, Clarke RG, Crocker PR: Siglec-5 (CD170) can mediate inhibitory signaling in the absence of immunoreceptor tyrosine-based inhibitory motif phosphorylation. J Biol Chem. 2005 May 20;280(20):19843-51. [Abstract] [Full Text]
  • *Yokoi H, Myers A, Matsumoto K, Crocker PR, Saito H, Bochner BS: Alteration and acquisition of Siglecs during in vitro maturation of CD34+ progenitors into human mast cells. Allergy. 2006 Jun;61(6):769-76. [Abstract]
  • *Angata T, Hayakawa T, Yamanaka M, Varki A, Nakamura M: Discovery of Siglec-14, a novel sialic acid receptor undergoing concerted evolution with Siglec-5 in primates. FASEB J. 2006 Oct;20(12):1964-73. [Abstract] [Full Text]
  • *Schuster P, Donhauser N, Pritschet K, Ries M, Haupt S, Kittan NA, Korn K, Schmidt B: Co-ordinated regulation of plasmacytoid dendritic cell surface receptors upon stimulation with herpes simplex virus type 1. Immunology. 2010 Feb;129(2):234-47. [Abstract]
  • For research use only. Not for drug, diagnostic or other use.

    Example Data

    1A5 purified FC


    Fig. 1. Surface staining of human peripheral blood cells using anti-CD170 (1A5) purified, GAM-APC.


    1A5 PE


    Fig. 2. Surface staining of human peripheral blood cells using anti-CD170 (1A5) PE.

    Unless indicated otherwise, all products are For Research Use Only and not for diagnostic or therapeutic use. Not for resale or transfer either as a stand-alone product or as a component of another product without written consent of EXBIO. EXBIO will not be held responsible for patent infringement or other violations that may occur with the use of our products. All orders are accepted subject to EXBIO´s term and conditions which are available at www.exbio.cz.
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