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Invitrogen™ CD169 (Siglec-1) Monoclonal Antibody (7-239), PE-eFluor™ 610, eBioscience™
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-titrated and tested by flow cytometric analysis of normal human peripheral blood cells. This can be used at 5 μL (0.5 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. PE-eFluor 610 can be excited with laser lines from 488-561 nm and emits at 607 nm. We recommend using a 610/20 band pass filter (equivalent to PE-Texas Red). Please make sure that your instrument is capable of detecting this fluorochome. Light sensitivity: Thi...
Specifications
Specifications
| Antigen | CD169 (Siglec-1) |
| Applications | Flow Cytometry |
| Classification | Monoclonal |
| Clone | 7-239 |
| Concentration | 5 μL/Test |
| Conjugate | PE-eFluor 610 |
| Formulation | PBS with BSA and 0.09% sodium azide; pH 7.2 |
| Gene | SIGLEC1 |
| Gene Accession No. | Q9BZZ2 |
| Gene Alias | Cd169; dJ1009E24.1; macrophage receptor; p210; pSn; SA; SER; sheep erythrocyte receptor; sialic acid binding Ig like lectin 1; sialic acid binding Ig-like lectin 1, sialoadhesin; Sialic acid-binding Ig-like lectin 1; sialic acid-binding immunoglobulin-like lectin 1; sialoadhesin; SIGLEC1; Siglec-1; SN |
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Frequently Asked Questions (FAQs)
Our options will depend on the samples you are analyzing.
If cell viability is not critical, you can store your stained samples at 4 degrees C or on ice overnight in the dark and analyze the following day.
For samples stained with eFluor organic fluorochromes, we recommend that cells be suspended in 100 uL of Flow Cytometry Staining Buffer (Cat. No. 00-4222) and 100 uL of eBioscience IC Fixation Buffer (Cat. No. 00-8222); samples can be incubated for up to 3 days at 4 degrees C in the dark. Alternatively, the 1-step Fix/Lyse Solution (Cat. No. 00-5333) can be used. This is a great option when working with whole blood but also works for other cell types.
Yes, the eFluor Organic fluorochromes can be used for intracellular staining. The eFluor organic fluorochromes maintain bright signal and require minimal changes in compensation when fixed with eBioscience IC Fixation Buffer (Cat. No. 00-8222-49) and Permeabilization Buffer (Cat. No. 00-8333-56) or 1-step Fix/Lyse Solution (Cat. No. 00-5333-54, 00-5333-57) (as compared to live cells).
The eFluor Organic fluorochromes and eVolve QDots can be used with flow staining buffers containing PBS and protein.
The eFluor Organic Dyes (eFluor 450, APC-eFluor 780, PerCP-eFluor 710, eFluor 710) are conventional fluorochromes. In contrast, the eVolve line of products are Quantum dots.
As with other fluorochromes, we recommend minimal exposure to light to maintain optimal signal.
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