Siglec-3/CD33 Antibody (C33/68) [PE/Cy5.5]

Product Discontinued

Siglec-3/CD33 Antibody (C33/68) [PE/Cy5.5] Summary

• Immunogen: Recombinant human CD33 protein
• Localization: Cell surface
• Specificity: Recognizes a 67kDa glycoprotein, which is identified as CD33. It is a transmembrane protein of the sialic acid-binding immunoglobulin-like lectin (Siglec) family. It belongs to the immunoreceptor tyrosine-based inhibitory motif (ITIM)-containing molecules able of recruiting protein tyrosine phosphatases SHP-1 and SHP-2 to signal assemblies; these ITIMs are also used for ubiquitin-mediated removal of the receptor from the cell surface. CD33 is expressed on cells of myelomonocytic lineage, binds sialic acid residues in N- and O-glycans on cell surfaces, and is a therapeutic target for acute myeloid leukemia. CD33 is expressed on myeloid progenitors, monocytes, granulocytes, dendritic cells and mast cells. It is absent on platelets, lymphocytes, erythrocytes and hematopoietic stem cells.
• Isotype: IgG1 Kappa
• Clonality: Monoclonal
• Host: Mouse
• Gene: CD33
• Purity: Protein A purified

Applications/Dilutions

• Dilutions:
  • Flow Cytometry
• Application Notes: Optimal dilution of this antibody should be experimentally determined. For optimal results using our Tandem dyes, please avoid prolonged exposure to light or extreme temperature fluctuations. These can lead to irreversible degradation or decoupling. When staining intracellular targets, specific attention to the fixation and permeabilization steps in your flow protocol may be required. Please contact our technical support team at technical@novusbio.com if you have any questions.

Packaging, Storage & Formulations

• Storage: Store at 4C in the dark. Do not freeze.
• Buffer: PBS
• Preservative: 0.05% Sodium Azide
• Purity: Protein A purified

Alternate Names for Siglec-3/CD33 Antibody (C33/68) [PE/Cy5.5]

• CD33 antigen (gp67)
• CD33 antigen
• CD33 molecule
• CD33
• FLJ00391
• gp67
• myeloid cell surface antigen CD33
• p67
• sialic acid binding Ig-like lectin 3
• Sialic acid-binding Ig-like lectin 3
• Siglec3
• Siglec-3
• SIGLEC3gp67

Background

CD33 is a 67 kDa type I transmembrane glycoprotein and a member of the sialoadhesin family of cell surface receptors. It is absent from pluripotent stem cells but appears on myelomonocytic precursors after CD34. It then continues to be expressed on both the myeloid and monocyte lineages, although it is absent on granulocytes. While it has been reported that CD33 can function as a sialic acid-dependent cell adhesion molecule, cells expressing CD33 require desialylation before they can bind cells bearing the appropriate sialoglycoconjugates. This suggests that inhibitory cis interactions may regulate or block any adhesion function. (1-4)

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: CD33