Anti-Human CD33 Antibody, Clone HIM3-4

Mouse monoclonal IgG1 antibody against human, chimpanzee CD33

Anti-Human CD33 Antibody, Clone HIM3-4

Mouse monoclonal IgG1 antibody against human, chimpanzee CD33

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Mouse monoclonal IgG1 antibody against human, chimpanzee CD33
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Overview

The HIM3-4 antibody reacts with CD33 (Siglec-3), an ~67 - 75 kDa type 1 transmembrane sialoadhesion protein of the immunoglobulin superfamily. CD33 is expressed on committed myeloid progenitor cells, monocytes, granulocytes, dendritic cells, mast cells, resident macrophages, and subsets of B cells and activated T and NK cells. CD33 is a major marker used to differentiate myeloid from lymphoid or erythroid leukemias. In peripheral blood it is expressed at high levels on monocytes and at lower levels on granulocytes. CD33 functions as a sialic acid-dependent cell adhesion molecule and mediates protein-glycan and protein-protein interactions between cells. It also has a putative role as an inhibitory receptor during the immune response. HIM3-4 reportedly binds to the extracellular C2 Ig domain of CD33, and does not block subsequent binding of several other anti-CD33 clones, including P67.6, WM53, and WM54. Two isoforms designated CD33M and CD33m have been identified and among these clones only HIM3-4 recognizes both isoforms.
Subtype
Primary Antibodies
Target Antigen
CD33
Alternative Names
gp67, p67, Sialic acid-binding immunoglobulin-like lectin 3, SIGLEC3, Siglec-3
Reactive Species
Chimpanzee, Human
Conjugation
FITC, PE, Unconjugated
Host Species
Mouse
Cell Type
Granulocytes and Subsets, Myeloid Cells
Species
Human, Non-Human Primate
Application
Flow Cytometry, Immunocytochemistry, Immunofluorescence
Area of Interest
Immunology
Clone
HIM3-4
Gene ID
945
Isotype
IgG1, kappa

Data Figures

Data for FITC-Conjugated

Figure 1. Data for FITC-Conjugated

(A) Flow cytometry analysis of human peripheral blood mononuclear cells (PBMCs) labeled with Anti-Human CD33 Antibody, Clone HIM3-4, FITC (filled histogram) or a mouse IgG1, kappa FITC isotype control antibody (black line histogram).
(B) Flow cytometry analysis of human PBMCs processed with the EasySep™ Human CD14 Positive Selection Kit and labeled with Anti-Human CD33 Antibody, Clone HIM3-4, FITC. Histograms show labeling of PBMCs (Start) and isolated cells (Isolated). Labeling of start cells with a mouse Ig1, kappa FITC isotype control antibody is shown (open histogram).

Data for Unconjugated

Figure 2. Data for Unconjugated

Flow cytometry analysis of human peripheral blood mononuclear cells (PBMCs) labeled with Anti-Human CD33 Antibody, Clone HIM3-4, followed by Goat Anti-Mouse IgG (H+L) Antibody, Polyclonal, FITC (Catalog #60138FI) (filled histogram), or a mouse IgG1, kappa isotype control antibody, followed by Goat Anti-Mouse IgG (H+L) Antibody, Polyclonal, FITC (solid line histogram).

Data for PE-Conjugated

Figure 3. Data for PE-Conjugated

Flow cytometry analysis of human buffy coat nucleated cells labeled with Anti-Human CD33 Antibody, Clone HIM3-4, PE (filled histogram) or Mouse IgG1, kappa Isotype Control Antibody, Clone MOPC-21, PE (Catalog #60070PE) (solid line histogram).

Protocols and Documentation

Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.

Document Type
Product Name
Catalog #
Lot #
Language
Catalog #
60096PE.1, 60096PE
Lot #
All
Language
English
Catalog #
60096FI.1, 60096FI
Lot #
All
Language
English
Catalog #
60096
Lot #
All
Language
English
Document Type
Safety Data Sheet
Catalog #
60096PE.1, 60096PE
Lot #
All
Language
English
Document Type
Safety Data Sheet
Catalog #
60096FI.1, 60096FI
Lot #
All
Language
English
Document Type
Safety Data Sheet
Catalog #
60096
Lot #
All
Language
English

Applications

This product is designed for use in the following research area(s) as part of the highlighted workflow stage(s). Explore these workflows to learn more about the other products we offer to support each research area.

Resources and Publications