Description: This 7-239 monoclonal antibody reacts with human CD169, also known as Siglec-1 and Sialoadhesin. This type I transmembrane protein is a member of the sialic acid binding Ig-like lectin (Siglec) family. Expressed on macrophages and dendritic cells in peripheral blood, lymph nodes, and spleen in humans, CD169 binds glycoproteins and glycolipids containing N-acetylneuraminyl alpha 2-3-galactose. CD169 expression can also be induced on CD14+ monocytes by interferon-alpha and interferon-gamma to mediate HIV-1 infection. Finally, CD169 has also been shown to be involved in antigen presentation to invariant NK T cells.
This monoclonal antibody has been reported to inhibit erythrocyte binding to CD169-expressing cells.
Applications Reported: This 7-239 antibody has been reported for use in flow cytometric analysis.
Applications Tested: This 7-239 antibody has been pre-diluted and tested by flow cytometric analysis . This may be used at 5 µL (0.25 µg) per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test.
Super Bright 436 can be excited with the violet laser line (405 nm) and emits at 436 nm. We recommend using a 450/50 bandpass filter, or equivalent. Please make sure that your instrument is capable of detecting this fluorochrome.
When using two or more Super Bright dye-conjugated antibodies in a staining panel, it is recommended to use Super Bright Complete Staining Buffer (Product # SB-4401) to minimize any non-specific polymer interactions. Please refer to the datasheet for Super Bright Staining Buffer for more information.
Excitation: 405 nm; Emission: 436 nm; Laser: Violet Laser
Super Bright Polymer Dyes are sold under license from Becton, Dickinson and Company.
The siglecs are a family of membrane bound lectins (of the immunoglobulin superfamily) that bind sialic acid and mediate cell-cell interactions. Family members include sialoadhesin, CD22 and CD33. Sialoadhesin is a macrophage-specific cell adhesion molecule that is expressed on activated macrophages in chronic inflammation and in tumours.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: CD169; sialic acid binding Ig-like lectin 1, sialoadhesin; Sialic acid-binding Ig-like lectin 1; sialic acid-binding immunoglobulin-like lectin 1; Sialoadhesin; Siglec-1
Gene Aliases: CD169; dJ1009E24.1; SIGLEC-1; SIGLEC1; SN
UniProt ID: (Human) Q9BZZ2
Entrez Gene ID: (Human) 6614