Thermo Fisher Scientific CD152 (CTLA-4) Monoclonal Antibody (14D3), Functional Grade, eBioscience

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

0.25 µg/test

View 14 publications 14 publications

ELISA (ELISA)

-

View 1 publication 1 publication

Neutralization (Neu)

Assay-Dependent

-

Functional Assay (Functional)

Assay-Dependent

View 1 publication 1 publication

In vitro Assay (IV)

-

View 1 publication 1 publication

Miscellaneous PubMed (Misc)

-

View 1 publication 1 publication

Product Specifications

Published species

Human

Host/Isotype

Mouse / IgG2a, kappa

Recommended Isotype Control

Mouse IgG2a kappa Isotype Control (eBM2a), Functional Grade, eBioscience™

Class

Monoclonal

Type

Antibody

Clone

14D3

Conjugate

Functional Grade Functional Grade Functional Grade

View additional formats

• Unconjugated
• APC
• APC-eFluor 780
• Biotin
• Brilliant UV 737
• Brilliant UV 805
• eFluor 660
• FITC
• PE
• PE-Cyanine7
• PE-eFluor 610
• PerCP-eFluor 710
• Request custom conjugation

Form

Liquid

Concentration

1 mg/mL

Storage conditions

4° C

Shipping conditions

Wet ice

RRID

AB_2865891

Product Specific Information

Description: The 14D3 monoclonal antibody reacts with human CD152, also known as cytotoxic T lymphocyte antigen-4 (CTLA-4). CTLA-4, a protein with structural similarities to CD28, is expressed on activated T cells (activated B cells may also express CTLA-4) and binds the B7 family members, CD80 (B7-1) and CD86 (B7-2), with higher affinity than CD28 does. CTLA-4 and CD28 appear to deliver opposing signals to T cells: while CD28 is a potent costimulator, CTLA-4 restricts the progression of T cells to an activated state by inhibiting IL-2 secretion and cellular proliferation. The cytoplasmic portion of CTLA-4 contains ER retention motifs, resulting in intracellular localization of a large proportion of newly synthesized CTLA-4 in response to TCR signaling.

The 14D3 antibody also recognizes rhesus monkey and has inhibitor activity.

Applications Reported: The 14D3 antibody has been reported for use in flow cytometric analysis. It has also been reported in in vitro inhibition studies. (Please use Functional Grade purified 14D3 in functional assays).

Applications Tested: The 14D3 antibody has been tested by flow cytometric analysis of PHA stimulated normal human peripheral blood cells. This can be used at less than or equal to 0.25 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.

Furthermore, due to the intracellular localization of a large portion of CTLA-4, for complete detection it may be necessary to assess intracellular expression, in addition to surface expression of CTLA-4.

Storage and handling: Use in a sterile environment.

Filtration: 0.2 µm post-manufacturing filtered.

Purity: Greater than 90%, as determined by SDS-PAGE.

Endotoxin Level: Less than 0.001 ng/µg antibody, as determined by LAL assay.

Aggregation: Less than 10%, as determined by HPLC.

Target Information

CTLA4 (Cytotoxic T-Lymphocyte Antigen 4) is a CD28-family receptor expressed on mainly CD4+ T cells. It binds the same ligands as CD28 (CD80 and CD86 on B cells and dendritic cells), but with higher affinity than CD28. However, in contrast to CD28 which enhances cell function when bound at the same time as the T cell receptor, CTLA4 inhbits the T cell and prevents it from functioning. Intracellular CTLA4 is also found in regulatory T cells and may be important to their function.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.