Thermo Fisher Scientific CD278 (ICOS) Monoclonal Antibody (C398.4A), Super Bright 436, eBioscience

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

0.5 µg/test

View 3 publications 3 publications

Product Specifications

Published species

Not Applicable

Host/Isotype

Armenian hamster / IgG

Recommended Isotype Control

Armenian Hamster IgG Isotype Control (eBio299Arm), Super Bright™ 436, eBioscience™

Class

Monoclonal

Type

Antibody

Clone

C398.4A

Conjugate

Super Bright™ 436 Super Bright™ 436 Super Bright™ 436

View additional formats

• Unconjugated
• APC
• APC-eFluor 780
• Biotin
• FITC
• Functional Grade
• PE
• PE-Cyanine5
• PE-Cyanine7
• Request custom conjugation

Excitation/Emission Max

413/431 nm View spectra

Form

Liquid

Concentration

0.2 mg/mL

Storage conditions

4° C, store in dark, DO NOT FREEZE!

Shipping conditions

Wet ice

RRID

AB_2744819

Product Specific Information

Description: The C398.4A monoclonal antibody reacts with ICOS (Inducible Costimulatory molecule), also known as H4/CRP-1/AILIM, and cross-reacts with mouse and rat ICOS. ICOS is a T cell specific activation molecule and a third member of the CD28/CTLA-4 family. A dimer of 47-57 kDa, ICOS is expressed on activated T cells, has potent costimulatory activity for T cell activation and proliferation and is required for humoral immune response. ICOS binds to its ligand on activated APC including B cells called B7h/B7RP-1, is thought to play a protective role in inflammatory autoimmune diseases and be involved in the development of Th2 cells. C398.4A is reported to display strong costimulation of proliferation of T cell clones, intermediate costimulation on activated T cells, and weak costimulation on fresh resting T cells. It is a good costimulator of IL-10 production especially from pre-activated cells that express high level of H4/ICOS. The epitope recognized by C398.4A is different from that bound by the ICOSL (i.e., C398.4A does not block binding of ICOSL).

Applications Reported: This C398.4A antibody has been reported for use in flow cytometric analysis.

Applications Tested: This C398.4A antibody has been tested by flow cytometric analysis of stimulated mouse splenocytes. This can be used at less than or equal to 0.5 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.

Super Bright 436 can be excited with the violet laser line (405 nm) and emits at 436 nm. We recommend using a 450/50 bandpass filter, or equivalent. Please make sure that your instrument is capable of detecting this fluorochrome.

When using two or more Super Bright dye-conjugated antibodies in a staining panel, it is recommended to use Super Bright Complete Staining Buffer (Product # SB-4401) to minimize any non-specific polymer interactions. Please refer to the datasheet for Super Bright Staining Buffer for more information.

Excitation: 405 nm; Emission: 436 nm; Laser: Violet Laser

Super Bright Polymer Dyes are sold under license from Becton, Dickinson and Company.

Target Information

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.

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