CD278 (ICOS) Monoclonal Antibody (ISA-3), eBioscience™, Invitrogen™

Mouse Monoclonal Antibody

Supplier:  Invitrogen 14994882

Catalog No. 50-139-10

Description

Description: The ISA-3 monoclonal antibody reacts with human ICOS (Inducible COStimulatory molecule), also known as H4, CRP-1 and AILIM. ICOS is a T cell specific activation molecule and a third member of the CD28/CTLA-4 family. Human ICOS has a relative molecular mass of 55-60 kDa, composed of 27 kDa and 29 kDa chains. Human ICOS on activated T cells has potent costimulatory activity for T cell activation and is required for humoral immune responses, in particular for memory B cell and plasma cell generation. ICOS binds to its ligand, B7h/B7RP-1 expressed on activated APCs (antigen presenting cells) and on a number of inflamed peripheral tissues. Plate-bound ISA-3 is costimulatory for T cells and induces production of IL-4, IL-5, IL-10 and other cytokines, but not IL-2. ISA-3 has the same reactivity pattern and characteristics as F44. ISA-3 was generated against the human ICOS antigen. C398.4A, anti-mouse ICOS/H4 (cat. 14-9949-82), was shown to cross-react with human ICOS but binds to an epitope different from ISA-3. C398.4A stains activated cells brighter than ISA-3; however, it also exhibits higher staining of non-activated human peripheral blood or isolated PBMC. To achieve the brightest staining of ICOS on activated human T cells, please use 13-9948-82 or 12-9948-42 rather than 11-9948-42. Applications Reported: The ISA-3 antibody has been reported for use in flow cytometric analysis, immunoprecipitation, and immunohistochemical staining of frozen tissue sections.

ICOS (CD278) encodes a protein that is a member of the CD28 and CTLA-4 cell-surface receptor family. It functions as a homodimer and has a crucial role in cell-cell signaling, immune responses, and the regulation of cell proliferation. ICOS has been linked to various disorders, including Immunodeficiency, Common Variable, 1 and Common Variable Immunodeficiency.

Specifications

• Antigen: CD278 (ICOS)
• Classification: Monoclonal
• Concentration: 0.5 mg/mL
• Formulation: PBS with 0.09% sodium azide; pH 7.2
• Gene Accession No.: Q9Y6W8
• Gene Symbols: ICOS
• Purification Method: Affinity chromatography
• Regulatory Status: RUO
• Gene ID (Entrez): 29851
• Content And Storage: 4° C
• Form: Liquid

• Applications: Flow Cytometry, Functional Assay, Immunohistochemistry (Frozen), Immunoprecipitation
• Clone: ISA-3
• Conjugate: Unconjugated
• Gene: ICOS
• Gene Alias: Activation-inducible lymphocyte immunomediatory molecule; Ailim; CCLP; CD278; CD28 and CTLA-4-like protein; CD28-related protein 1; CRP-1; CVID1; H4; Icos; inducible costimulator; inducible T cell costimulator; inducible T cell co-stimulator; inducible T-cell costimulator; inducible T-cell co-stimulator; Ly115
• Host Species: Mouse
• Quantity: 100 μg
• Primary or Secondary: Primary
• Target Species: Human
• Product Type: Antibody
• Isotype: IgG1 κ

For Research Use Only.