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  • SAB4700480 - Monoclonal Anti-CD45-FITC antibody produced in mouse

SAB4700480 Sigma-Aldrich

Monoclonal Anti-CD45-FITC antibody produced in mouse

clone MEM-28, purified immunoglobulin, buffered aqueous solution

Synonym: Anti-LCA, Anti-PTPRC



Related Categories Alphabetical Index, Antibodies, Antibodies for Flow Cytometry, Antibodies to CD and Related Antigens, PT-PY,
conjugate   FITC conjugate
clone   MEM-28, monoclonal
biological source   mouse
application(s)   flow cytometry: suitable
species reactivity   human
form   buffered aqueous solution
shipped in   wet ice
storage temp.   2-8°C
antibody form   purified immunoglobulin
isotype   IgG1
antibody product type   primary antibodies
NCBI accession no.   NM_002838.3
UniProt accession no.   P08575
Gene Information   human ... PTPRC(5788)


General description

The antibody MEM-28 reacts with all alternative forms of human CD45 antigen (Leukocyte Common Antigen), a 180-220 kDa single chain type I transmembrane protein expressed at high level on all cells of hematopoietic origin, except erythrocytes and platelets.

The cluster of differentiation 45 (CD45) gene is mapped to human chromosome 1q31.3-q32.1. It codes for a type I transmembrane protein and is expressed in nucleated hematopoietic cells along within its precursors. The protein consists of a varying extracellular domain and a highly conserved intracellular domain.


Human thymocytes and T lymphocytes


The reagent is designed for Flow Cytometry analysis of human blood cells using 20 μL reagent / 100 μL of whole blood or 1e6 cells in a suspension. The content of a vial (2 mL) is sufficient for 100 tests.

Physical form

Solution in phosphate buffered saline containing 15 mM sodium azide and 0.2% high-grade protease free BSA as a stabilizing agent.


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.

Biochem/physiol Actions

Cluster of differentiation 45 (CD45) functions as a prototypic receptor and exhibits phosphatase activity. CD45 is implicated in the regulation of T-cell mediated B cell antigen receptor (BCR)-signaling. The encoded protein plays an essential role in antigen-stimulated proliferation of T lymphocytes and in thymic development. CD45 negatively regulates cytokine receptor signaling via suppressing JAK (Janus kinase) activity.

Features and Benefits

Evaluate our antibodies with complete peace of mind. If the antibody does not perform in your application, we will issue a full credit or replacement antibody. Learn more.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy

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