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SAB4700050

Sigma-Aldrich

Monoclonal Anti-CD3 antibody produced in mouse

clone APA1/1, purified immunoglobulin, buffered aqueous solution

Synonym(s):

Anti-CD3 (activation epitope)

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

mouse

conjugate

unconjugated

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

APA1/1, monoclonal

form

buffered aqueous solution

species reactivity

human, mouse

concentration

1 mg/mL

technique(s)

flow cytometry: suitable

isotype

IgG1

NCBI accession no.

shipped in

wet ice

storage temp.

2-8°C

target post-translational modification

unmodified

Gene Information

human ... CD3(916)

General description

CD3 (cluster of differentiation 3) molecule is encoded by the gene mapped to human chromosome 11q23.3. The encoded protein exists in three isoforms, CD3ε, CD3γ and CD3δ and each contains an N-terminal extracellular domain, a transmembrane segment and a cytoplasmic domain. CD3 is a 20kDa glycoprotein expressed on surface of all human T lymphocytes.
The mouse monoclonal antibody APA1/1 recognizes an activation-dependent intracellular epitope of CD3 epsilon. Exposure of the epitope precedes CD3 phosphorylation and recruitment and activation of ZAP70, which initiates the signaling cascade produced by T-cell activation. APA1/1 provides the earliest known marker for TCR-mediated T cell activation.

Immunogen

Purified human CD3 proteins isolated from thymus

Application

The reagent is designed for Flow Cytometry analysis. Suggested working dilution for Flow Cytometry is 1-2 μg/mL of sample. Indicated dilution is recommended starting point for use of this product. Working concentrations should be determined by the investigator.

Biochem/physiol Actions

T-cell receptor- CD3 (cluster of differentiation 3) complex including CD3ε, CD3γ and CD3δ, plays a vital role in inducing early metabolic events that lead to T cell activation. Mutation in CD3ε has been observed in T-B+ NK+ severe combined immunodeficiency (SCID) patients.

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.

Physical form

Solution in phosphate buffered saline, pH 7.4, with 15 mM sodium azide.

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.

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Storage Class Code

10 - Combustible liquids

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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THE T CELL RECEPTORjCD3 COMPLEX: A DYNAMIC PROTEIN ENSEMBLE
Clevers H
Annual Review of Immunology, 629-662 (1988)
Yan Hu et al.
EMBO reports, 22(7), e52481-e52481 (2021-06-15)
Receptor activator of NF-κB ligand (RANKL) is essential for osteoclast formation and bone remodeling. Nevertheless, the cellular source of RANKL for osteoclastogenesis has not been fully uncovered. Different from peripheral adipose tissue, bone marrow (BM) adipose lineage cells originate from
Amy P Wong et al.
American journal of physiology. Lung cellular and molecular physiology, 293(3), L740-L752 (2007-07-10)
It has been suggested that some adult bone marrow cells (BMC) can localize to the lung and develop tissue-specific characteristics including those of pulmonary epithelial cells. Here, we show that the combination of mild airway injury (naphthalene-induced) as a conditioning
Notch signaling induces cytoplasmic CD3 epsilon expression in human differentiating NK cells.
De Smedt M
Blood, 110, 2696-2703 (2007)
A novel pathogenic frameshift variant of CD3E gene in two T-B+ NK+ SCID patients from Turkey.
Firtina S
Immunogenetics, 69, 653-659 (2017)

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