Human CD300f/LMIR3 PE‑conjugated Antibody

R&D Systems | Catalog # FAB2774P

R&D Systems
Discontinued Product
FAB2774P has been discontinued. An alternative/replacement product is available: FAB2774G, FAB2774T. View all CD300f/LMIR3 products.

Key Product Details

Species Reactivity

Human

Applications

Flow Cytometry

Label

Phycoerythrin (Excitation = 488 nm, Emission = 565-605 nm)

Antibody Source

Monoclonal Rat IgG2B Clone # 234903
View all CD300f/LMIR3 Primary Antibodies »

Product Specifications

Immunogen

Y3 rat myeloid cell line transfected with human CD300f/LMIR3

Specificity

Detects human CD300f/LMIR3 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant human LMIR1, 2, 4, 5, 6, or recombinant mouse LMIR3 is observed.

Clonality

Monoclonal

Host

Rat

Isotype

IgG2B

Scientific Data Images for Human CD300f/LMIR3 PE‑conjugated Antibody

Detection of CD300f/LMIR3 antibody in Human Blood Monocytes antibody by Flow Cytometry.

Detection of CD300f/LMIR3 in Human Blood Monocytes by Flow Cytometry.

Human peripheral blood monocytes were stained with Rat Anti-Human CD300f/LMIR3 PE-conjugated Monoclonal Antibody (Catalog # FAB2774P, filled histogram) or isotype control antibody (Catalog # IC013P, open histogram). View our protocol for Staining Membrane-associated Proteins.

Applications for Human CD300f/LMIR3 PE‑conjugated Antibody

Application
Recommended Usage

Flow Cytometry

10 µL/106 cells
Sample: Human peripheral blood monocytes

Spectra Viewer

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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Formulation

Supplied 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: CD300f/LMIR3

CD300f, also known as CD300LF, LMIR3, IREM-1, CLM-1, IgSF13, DIgR1, and MAIR-V, is a 50‑60 kDa glycoprotein member of the immunoglobulin superfamily (1). Human CD300f consists of a 137 amino acid (aa) extracellular domain (ECD) with one Ig-like V-type domain, a 21 aa transmembrane segment, and a 113 aa cytoplasmic domain that contains multiple immunoreceptor tyrosine-based inhibitory motifs (ITIMs) or ITIM-like sequences (2, 3). Alternate splicing generates additional isoforms that carry substituted C-terminal tails of varying lengths and sequences following the ECD or transmembrane segment (3). Within the ECD, human CD300f shares 43% aa sequence identity with mouse and rat CD300f. CD300f is expressed on the surface of dendritic cells, monocytes, granulocytes, and mast cells as well as on acute myeloid leukemia (AML) blasts (2-4). Pervanadate treatment or antibody crosslinking of CD300f induces phosphorylation of tyrosine residues in the cytoplasmic domain and the subsequent recruitment of phosphatases SHIP, SHP-1, SHP-2, and the p85 alpha subunit of PI3K (2, 3, 5, 6). CD300f ligation can induce cell death and inhibit signaling through multiple receptors including Fc epsilon RI, LMIR4, SCF R, TLR2, TLR3, and TLR9 (3-8). In contrast, it enhances TLR4-mediated signaling/cytokine production in mast cells through association with the activating signaling protein FcR gamma (5). In mouse, a splice variant of CD300f (known as DIgR2, with a 7 aa insertion in the ECD) inhibits CD4+ T cell activation and in vivo Th1 and CTL responses (9). CD300f is upregulated on monocytes surrounding experimentally-induced spinal cord demyelination and functions as a negative regulator of inflammation in the CNS (10).

References

  1. Clark, G.J. et al. (2009) Trends Immunol. 30:209.
  2. Sui, L. et al. (2004) Biochem. Biophys. Res. Commun. 319:920.
  3. Alvarez-Errico, D. et al. (2004) Eur. J. Immunol. 34:3690.
  4. Korver, W. et al. (2009) Leukemia 23:1587.
  5. Izawa, K. et al. (2009) J. Immunol. 183:925.
  6. Alvarez-Errico, D. et al. (2007) J. Immunol. 178:808.
  7. Can, I. et al. (2008) J. Immunol. 180:207.
  8. Izawa, K. et al. (2007) J. Biol. Chem. 282:17997.
  9. Shi, L. et al. (2006) Blood 108:2678.
  10. Xi, H. et al. (2010) J. Exp. Med. 207:7.

Long Name

Leukocyte Mono Ig-like Receptor 3

Alternate Names

CD300f, CD300LF, CLIM1, CLM1, DIgR2, IGSF13, IREM-1, LMIR3, NKIR, Pigr3

Entrez Gene IDs

146722 (Human); 246746 (Mouse)

Gene Symbol

CD300LF

Additional CD300f/LMIR3 Products

Product Documents for Human CD300f/LMIR3 PE‑conjugated Antibody

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Product Specific Notices for Human CD300f/LMIR3 PE‑conjugated Antibody

For research use only

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