Invitrogen™ CD152 (CTLA-4) Monoclonal Antibody (WKH203), PE, eBioscience™

Catalog No.	Quantity
50-106-50	100 μg

Catalog No. 50-106-50 Supplier Invitrogen™ Supplier No. 12152082

Description

Mouse Monoclonal Antibody

Description: The WKH203 monoclonal antibody reacts with rat CD152, also known as the cytotoxic T lymphocyte antigen-4 (CTLA-4). CTLA-4, a protein with structural similarities to CD28, is expressed on activated T cells 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: The WKH203 antibody has been reported for use in flow cytometric analysis. Applications Tested: This WKH203 antibody has been tested by flow cytometric analysis of unstimulated and Con A-stimulated (3 days) rat splenocytes. This can be used at less than or equal to 1 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 express...

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
• Classification: Monoclonal
• Clone: WKH203
• Concentration: 0.2 mg/mL
• Conjugate: PE
• Formulation: PBS with 0.09% sodium azide; pH 7.2
• Gene: CTLA4
• Gene Accession No.: 0
• Gene Alias: ALPS5; CD; CD152; CD152 antigen; CD152 isoform; CD152 protein; CD152 protein precursor; celiac disease 3; CELIAC3; Ctla4; CTLA-4; cytotoxic T lymphocyte associated antigen 4 short spliced form; cytotoxic T-lymphocyte associated protein 4; cytotoxic T-lymphocyte protein 4; cytotoxic T-lymphocyte protein 4 isoform CTLA4-TM; cytotoxic T-lymphocyte-associated antigen 4; cytotoxic T-lymphocyte-associated protein 4; cytotoxic T-lymphocyte-associated serine esterase-4; EGK_04712; GRD4; GSE; ICOS; IDDM12; insulin-dependent diabetes mellitus 12; ligand and transmembrane spliced cytotoxic T lymphocyte associated antigen 4; Ly-56; sCTLA4; soluble form; transmembrane form
• Gene Symbols: CTLA4
• Host Species: Mouse
• Purification Method: Affinity chromatography
• Quantity: 100 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 63835
• Target Species: Rat
• Content And Storage: 4°C, store in dark, DO NOT FREEZE!
• Product Type: Antibody
• Form: Liquid
• Isotype: IgG1

Safety and Handling

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