Analysis Note

ControlPBMCs

Application

Milli-Mark Anti-CD33-FITC Antibody, clone WM-54 detects level of CD33 & has been published & validated for use in FC.

Research Sub CategoryImmunoglobulins & Immunology

Research CategoryInflammation & Immunology

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

General description

CD33 is a member of the siglec family (sialic acid binding immunoglobulin-like lectins) referred to as Siglec-3 (Freeman SD, Kelm S, Barber EK and Crocker PR, 1995, Blood, 2005-2012). It is the smallest member of the siglec family having a molecular weight of 67 kDa (Peiper SC, Ashmun RA and Look TA (1988) Blood., 72: 314-321). CD33 mediates protein-carbohydrate cellular interactions in addition to protein-protein recognition (Crocker, 2002). The CD33 gene is located on chromosome 19 (Peiper, 1997). CD33 is expressed by subsets of monocytes and neutrophils. CD33 is the major antigen to differentially diagnose myeloid from lymphoid leukemias, as it is expressed on 90% of myeloid and not lymphoid leukemic cells (Andrews 1989; Griffin 1984; and Sabbath 1986). Committed hemapoietic progenitors, including multipotential stem cells (CFU-GEMM) and precursors of granulocytes and macrophages (CFU-GM) and early erythroid progenitors (BFU-E) express CD33 (Peiper, 1989 and 1997). Anti-CD33, WM-54, was included in the Fourth International Workshop and Conference on Human Leucocyte Differentiation Antigens and studies by a number of laboratories confirmed its reactivity with CD33 (Peiper, 1989).

Immunogen

Leukemic cells from a patient with AML.

Legal Information

MILLI-MARK is a registered trademark of Merck KGaA, Darmstadt, Germany

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Physical form

Protein A purified

Purified Mouse monoclonal IgG1 conjugated to FITC in 0.05M Tris-HCl buffer with 1% BSA, Sodium Azide at 0.097% at pH 7.2.

Quality

Evaluated by flow cytometry using human PBMCs

Specificity

Antibody recognizes Human CD33 antigen.

Storage and Stability

Maintained refrigerated at 2-8°C from date of receipt. Protected from light in undiluted aliquots for 6 months from date of receipt.

Target description

67 kDa (Peiper, 1997)