Host: |
Mouse |
Applications: |
IHC-P |
Reactivity: |
Human |
Note: |
STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS. |
Short Description: |
Mouse monoclonal antibody anti-CD33 is suitable for use in Immunohistochemistry research applications. |
Clonality: |
Monoclonal |
Clone ID: |
PWS44 |
Conjugation: |
Unconjugated |
Isotype: |
IgG2b |
Formulation: |
Tris Buffer, pH 7.3-7.7, containing 1% BSA and <0.1% Sodium Azide |
Dilution Range: |
IHC 1:100 – 1:500 |
Storage Instruction: |
Store at 2-8°C upon receipt. |
Tissue Specificity | Monocytic/myeloid lineage cells. In the brain, CD33 is mainly expressed on microglial cells. |
Post Translational Modifications | Glycosylated. Glycosylation at Asn-100 is critical for regulating ligand recognition. Phosphorylation of Tyr-340 is involved in binding to PTPN6 and PTPN11. Phosphorylation of Tyr-358 is involved in binding to PTPN6. LCK phosphorylates Tyr-340 efficiently and Tyr-358 to a lesser extent. |
Function | Sialic-acid-binding immunoglobulin-like lectin (Siglec) that plays a role in mediating cell-cell interactions and in maintaining immune cells in a resting state. Preferentially recognizes and binds alpha-2,3- and more avidly alpha-2,6-linked sialic acid-bearing glycans. Upon engagement of ligands such as C1q or syalylated glycoproteins, two immunoreceptor tyrosine-based inhibitory motifs (ITIMs) located in CD33 cytoplasmic tail are phosphorylated by Src-like kinases such as LCK. These phosphorylations provide docking sites for the recruitment and activation of protein-tyrosine phosphatases PTPN6/SHP-1 and PTPN11/SHP-2. In turn, these phosphatases regulate downstream pathways through dephosphorylation of signaling molecules. One of the repressive effect of CD33 on monocyte activation requires phosphoinositide 3-kinase/PI3K. |
Protein Name | Myeloid Cell Surface Antigen Cd33Sialic Acid-Binding Ig-Like Lectin 3Siglec-3Gp67Cd Antigen Cd33 |
Database Links | Reactome: R-HSA-198933Reactome: R-HSA-6798695 |
Cellular Localisation | Isoform Cd33m: Cell MembraneSingle-Pass Type I Membrane ProteinIsoform Cd33m: PeroxisomeCd33m Isoform Does Not Localize To Cell Surfaces But Instead Accumulates In Peroxisomes |
Alternative Antibody Names | Anti-Myeloid Cell Surface Antigen Cd33 antibodyAnti-Sialic Acid-Binding Ig-Like Lectin 3 antibodyAnti-Siglec-3 antibodyAnti-Gp67 antibodyAnti-Cd Antigen Cd33 antibodyAnti-CD33 antibodyAnti-SIGLEC3 antibody |
Information sourced from Uniprot.org
12 months for antibodies. 6 months for ELISA Kits. Please see website T&Cs for further guidance