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Invitrogen
CD152 (CTLA-4) Monoclonal Antibody (eBio20A (20A, A3)), PE, eBioscience™
FIGURE: 1 / 1
CD152 (CTLA-4) Antibody (12-1528-42) in Flow
Intracellular staining of 3-day PHA-stimulated normal human peripheral blood cells with Anti-Human CD3 APC (Product # 17-0038-42) and Mouse IgG2a kappa Isotype Control PE (Product # 12-4724-81) (left) or Anti-Human CD152 (CTLA-4) PE (right). Total viable cells were used for analysis.
Product Details
12-1528-42
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human
Published species
Human
Host/Isotype
Mouse
/ IgG2a, kappa
Recommended Isotype Control
Class
Monoclonal
Type
Antibody
Clone
eBio20A (20A, A3)
Conjugate
Excitation/Emission Max
565/576 nm
View spectra
Form
Liquid
Concentration
5 µL/Test
Purification
Affinity chromatography
Storage buffer
PBS, pH 7.2, with 0.2% BSA
Contains
0.09% sodium azide
Storage conditions
4° C, store in dark, DO NOT FREEZE!
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_11044911
Product Specific Information
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.
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.
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Bioinformatics
Protein Aliases: CD152; CD152 isoform; celiac disease 3; CTLA-4; cytotoxic T lymphocyte associated antigen 4 short spliced form; Cytotoxic T-lymphocyte protein 4; Cytotoxic T-lymphocyte-associated antigen 4; cytotoxic T-lymphocyte-associated protein 4; cytotoxic T-lymphocyte-associated serine esterase-4; ICOS; insulin-dependent diabetes mellitus 12; ligand and transmembrane spliced cytotoxic T lymphocyte associated antigen 4
Gene Aliases: ALPS5; CD; CD152; CELIAC3; CTLA-4; CTLA4; GRD4; GSE; IDDM12
UniProt ID: (Human) P16410
Entrez Gene ID: (Human) 1493
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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