|Application ||WB, E|
|Other Accession||NP_001763, 130979981|
|Reactivity||Human, Mouse, Rat|
|Calculated MW||39825 Da|
|Application Notes||CD33 antibody can be used for detection of CD33 by Western blot at 1 - 2 µg/mL.|
|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.|
|Precautions||CD33 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|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.|
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Provided below are standard protocols that you may find useful for product applications.
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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