Anti-Human Macrosialin/CD68 (Y1/82A) ColorWheel^® Dye-Ready mAb

ColorWheel^® technology is a novel and proprietary method of creating your own antibody and dye combinations for use in flow cytometry. By incubating any ColorWheel^® antibody with any ColorWheel^® dye, researchers can quickly and simply produce primary conjugated antibodies for use in single color or multicolor flow cytometry analysis. Each ColorWheel^® antibody and dye is lyophilized for long-term storage, allowing for simplicity and flexibility without compromise. ColorWheel^® technology requires both ColorWheel^® antibody and ColorWheel^® dye for Flow Cytometry application.

Macrosialin (UniProt: P34810; also known as Gp110, CD68) is encoded by the CD68 gene (Gene ID: 968) in human. CD68 is a single-pass type I membrane glycoprotein that is synthesized with a signal peptide (aa 1-21), which is subsequently cleaved off to generate the mature form that contains an extracellular domain (aa 22-319), a transmembrane domain (aa 320-345), and a short cytoplasmic tail (aa 345-354). It also contains a mucin-like domain (aa 23-140) and has two 30 amino acid long repeats (aa 70-99 and 100-129), proline-rich hinge (aa 140-152), and a LAMP-like domain. CD68 is highly expressed in blood monocytes and tissue macrophages. Its expression is also observed in lymphocytes, fibroblasts, and endothelial cells. It is also found in many tumor cells and allows them to attach to selectin on vascular endothelium, facilitating their dissemination to secondary sites. CD68 is mainly located in the endosomal/lysosomal compartment but can rapidly shuttle to the cell surface. In macrophages, it plays a role in their phagocytic activities, both in intracellular lysosomal metabolism and extracellular cell-cell and cell-pathogen interactions. It binds to tissue- and organ-specific lectins or selectins, which allows for homing of macrophages to particular sites. It has a good predictive value as a prognostic marker of survival in cancer subjects. CD68 expression is shown to be upregulated in macrophages in response to inflammatory stimuli, such as exposure to oxLDL, lipopolysaccharide, or interferon-g. Hence, it can serve as a good histochemical/cytochemical marker of inflammation associated with the involvement of monocytes/macrophages. Its expression is not observed in dendritic cells; hence it can be used to immunohistochemically distinguish macrophages from dendritic cells.

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PHA-stimulated Human peripheral blood mononuclear cells (PBMC).

Quality Control Testing

Evaluated by Flow Cytometry in Human monocytes, intracellularly stained.

Flow Cytometry Analysis:Intracellular staining of one million Human monocytes was performed using 5 μL of a 1:1 mixture of Cat. No. CWA-1092, Anti-Human Macrosialin / CD68 / LAMP4 (Y1/82A) ColorWheel^® Dye-Ready mAb and Cat. No. CWDS-PE ColorWheel^® Antibody-Ready Phycoerythrin (PE) Dye or an equivalent amount of PE-conjugated Mouse IgG2b isotype control.

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user

Clone Y1/82A is a mouse monoclonal antibody that detects Macrosialin (CD68).

Lyophilized from PBS containing D-Mannitol and Sucrose, normal appearance is a dried pellet. Reconstituted antibody solution is stable and functional as assessed by functional testing. Contains no biocide or preservatives, such as azide.

1.0 mg/mL after reconstitution at 25 μL in PBS. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type.

Recommend storage of lyophilized product at 2-8°C. Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial. Reconstitute each vial by adding 25 μL PBS. Protect from light.

ColorWheel is a registered trademark of Merck KGaA, Darmstadt, Germany

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.