Anti-Hu CD33 Purified

CD33 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.

Product Specifications

Certification

RUO

Reactivity

Non-human primates, Human

Immunogen

NFMY-9s human cell line

Target Antigen

CD33

Clone

HIM3-4

Applications

FC (QC tested)

Concentration

1 mg/mL

Format

Purified

Buffer

Phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide

References & Citations

*McCormack E, Mujic M, Osdal T, Bruserud O, Gjertsen BT: Multiplexed mAbs: a new strategy in preclinical time-domain imaging of acute myeloid leukemia. Blood. 2013 Feb 14;121 (7) :e34-42. doi: 10.1182/blood-2012-05-429555., URL: http://www.ncbi.nlm.nih.gov/pubmed/23243270

Other References

*Walter RB, Häusermann P, Raden BW, Teckchandani AM, Kamikura DM, Bernstein ID, Cooper JA: Phosphorylated ITIMs Enable Ubiquitylation of an Inhibitory Cell Surface Receptor. Traffic. 2007 Dec 18, URL: https://www.ncbi.nlm.nih.gov/pubmed/18062779?ordin, *Orr SJ, Morgan NM, Elliott J, Burrows JF, Scott CJ, McVicar DW, Johnston JA: CD33 responses are blocked by SOCS3 through accelerated proteasomal-mediated turnover. Blood. 2007 Feb 1;109 (3) :1061-8., URL: https://www.ncbi.nlm.nih.gov/pubmed/17008544?ordin, *Ulyanova T, Blasioli J, Woodford-Thomas TA, Thomas ML: The sialoadhesin CD33 is a myeloid-specific inhibitory receptor. Eur J Immunol. 1999 Nov;29 (11) :3440-9., URL: https://www.ncbi.nlm.nih.gov/pubmed/10556798?ordin

Storage Conditions

Store at 2-8°C. Do not freeze.

Specificity

The antibody HIM3-4 reacts with an extracellular epitope of CD33, a 67 kDa type I transmembrane glycoprotein (immunoglobulin superfamily) expressed on myeloid progenitors, monocytes, granulocytes, dendritic cells and mast cells; it is absent on platelets, lymphocytes, erythrocytes and hematopoietic stem cells.