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CD33 Antibody

  • WB - CD33 Antibody ASC11404
    Western blot analysis of CD33 in 3T3 cell lysate with CD33 antibody at (A) 1 and (B) 2 µg/mL.
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession P20138
Other Accession NP_001763, 130979981
Reactivity Human, Mouse, Rat
Host Rabbit
Clonality Polyclonal
Isotype IgG
Calculated MW 39825 Da
Application Notes CD33 antibody can be used for detection of CD33 by Western blot at 1 - 2 µg/mL.
Additional Information
Gene ID 945
Target/Specificity CD33; At least three isoforms of CD33 are known to exist; this antibody will detect all three isoforms.
Reconstitution & Storage CD33 antibody can be stored at 4℃ for three months and -20℃, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures.
PrecautionsCD33 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Name CD33
Synonyms SIGLEC3
Function Putative adhesion molecule of myelomonocytic-derived cells that mediates sialic-acid dependent binding to cells. Preferentially binds to alpha-2,6-linked sialic acid. The sialic acid recognition site may be masked by cis interactions with sialic acids on the same cell surface. In the immune response, may act as an inhibitory receptor upon ligand induced tyrosine phosphorylation by recruiting cytoplasmic phosphatase(s) via their SH2 domain(s) that block signal transduction through dephosphorylation of signaling molecules. Induces apoptosis in acute myeloid leukemia (in vitro).
Cellular Location Cell membrane; Single-pass type I membrane protein
Tissue Location Monocytic/myeloid lineage cells.
Research Areas
Citations (0)

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CD33 Antibody: CD33 is a member of the sialic acid-binding immunoglobulin-like lectin (Siglec) family that is highly expressed on myeloid progenitor cells. Assessment of CD33 expression is of great importance in the immunodiagnosis of acute leukemia, allowing distinction between myeloid and lymphoid origin, as CD33 is generally restricted to the myelomonocytic lineage. CD33 can associate with the protein-tyrosine phosphatases SHP-1 and SHP-2 and thus could modulate downstream signaling events associated with cell activation. Common variants of CD33 have been found to be associated with late-onset Alzheimer's disease.


Freeman SD, Kelm S, Barber EK, et al. Characterization of CD33 as a new member of the sialoadhesion family of cellular interaction molecules. Blood 1995; 85:2005-12.
Crocker PR and Varki A. Siglecs, sialic acids, and innate immunity. Trends Immunol. 2001; 22:337-42.
Taylor VC, Buckley CD, Douglass M, et al. The myeloid-specific sialic acid-binding receptor, CD33, associates with the protein-tyrosine phosphatases, SHP-1 and SHP-2. J. Biol. Chem. 1999; 274:11505-12
Naj AC, Jun G, Beecham GW, et al. Common variants at MS4A4/MS4A6E, CD2AP, CD33 and EPHA are associated with late-onset Alzheimer’s disease. Nat. Genet. 2011; 43:436-41

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$ 310.00
Cat# ASC11404
(40 western blots)
Availability: 5-7days
Bulk Size
Seasonal Special on Bulk Order
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