Revision 3

#82470

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877-616-CELL (2355)

orders@cellsignal.com

Support:

877-678-TECH (8324)

3 Trask Lane | Danvers | Massachusetts | 01923 | USA

For Research Use Only. Not for Use in Diagnostic Procedures.

Applications:
W, IHC-P

Reactivity:
M

Sensitivity:
Endogenous

MW (kDa):
220

Source/Isotype:
Rabbit IgG

UniProt ID:
#Q62230

Entrez-Gene Id:
20612

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunohistochemistry (Paraffin) 1:1000 - 1:4000

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/mL BSA, 50% glycerol, and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

For a carrier free (BSA and azide free) version of this product see product #94578.

Specificity/Sensitivity

Siglec-1/CD169 (E1D7G) Rabbit mAb recognizes endogenous levels of total Siglec-1/CD169 protein. This antibody does not cross-react with human Siglec-1/CD169 protein. Non-specific staining was observed in mouse pancreas and testis by immunohistochemistry.


Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro1229 of mouse Siglec-1/CD169 protein.

Background

Sialic acid-binding Ig-like lectin 1 (Siglec-1/CD169) is a type-I transmembrane glycoprotein and a member of the siglec family of sialic acid-binding proteins. Structurally, Siglec-1 contains a heavily glycosylated extracellular domain and a short intracellular domain with no canonical signaling motifs (1). Expression of Siglec-1 is largely restricted to tissue-resident macrophages found in the bone marrow, liver, spleen, and lymph nodes. Research studies have shown that Siglec-1 is an adhesion molecule and binds to sialylated glycoconjugates to facilitate cell-cell and cell-matrix interactions (2-4). Siglec-1 has also been shown to facilitate the host innate immune response by binding to sialylated epitopes on the surface of viral and bacterial pathogens prior to initiating their phagocytosis (5,6). In the context of cancer, Siglec-1 has been shown to serve as a marker for subsets of proinflammatory macrophages in the tumor microenvironment that aid in the anti-tumor response by phagocytosing tumor cells and recruiting cytotoxic lymphocytes (7).

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v nonfat dry milk, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

W: Western Blotting IHC-P: Immunohistochemistry (Paraffin)

Cross-Reactivity Key

M: Mouse

Trademarks and Patents

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Orders: 877-616-CELL (2355) orders@cellsignal.com Support: 877-678-TECH (8324) info@cellsignal.com Web: cellsignal.com
For Research Use Only. Not for Use in Diagnostic Procedures.