CD152 (CTLA-4) Monoclonal Antibody (eBio20A (20A, A3)), PE, eBioscience™, Invitrogen™

Mouse Monoclonal Antibody

Catalog Number	Mfr. No.	Quantity
50-106-55	Invitrogen™ 12152842	100 Tests

Description

Description: The eBio20A 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. Applications Reported: This eBio20A (20A, A3) antibody has been reported for use in flow cytometric analysis. Applications Tested: This eBio20A (20A, A3) antibody has been pre-titrated and tested by intracellular staining and flow cytometric analysis of PHA stimulated normal human peripheral blood cells. This can be used at 5 μL (0.125 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. Excitation: 488-561 nm; Emission: 578 nm; Laser: Blue Laser, Green Laser, Yellow-Green Laser. Filtration: 0.2 μm post-manufacturing filtered.

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.

Specifications

• Antigen: CD152 (CTLA-4)
• Applications: Flow Cytometry
• Conjugate: PE
• Host Species: Mouse
• Target Species: Human
• Gene ID (Entrez): 1493
• Isotype: IgG2a κ
• Purification Method: Affinity chromatography
• Product Type: Antibody

• Concentration: 5 μL/Test
• Classification: Monoclonal
• Form: Liquid
• Regulatory Status: RUO
• Gene Accession No.: P16410
• Gene Symbols: CTLA4
• Primary or Secondary: Primary
• Content And Storage: 4°C, store in dark, DO NOT FREEZE!
• Gene: CTLA4

For Research Use Only.