Tested Applications
| Positive WB detected in | Jurkat cells, HL-60 cells |
| Positive IF-P detected in | human tonsillitis tissue |
Recommended dilution
| Application | Dilution |
|---|---|
| Western Blot (WB) | WB : 1:200-1:1000 |
| Immunofluorescence (IF)-P | IF-P : 1:50-1:500 |
| It is recommended that this reagent should be titrated in each testing system to obtain optimal results. | |
| Sample-dependent, Check data in validation data gallery. | |
Product Information
13338-1-AP targets ICOS/CD278 in WB, IHC, IF-P, ELISA applications and shows reactivity with human samples.
| Tested Reactivity | human |
| Cited Reactivity | human |
| Host / Isotype | Rabbit / IgG |
| Class | Polyclonal |
| Type | Antibody |
| Immunogen |
CatNo: Ag4155 Product name: Recombinant human ICOS protein Source: e coli.-derived, PGEX-4T Tag: GST Domain: 1-142 aa of BC028210 Sequence: MKSGLWYFFLFCLRIKVLTGEINGSANYEMFIFHNGGVQILCKYPDIVQQFKMQLLKGGQILCDLTKTKGSGNTVSIKSLKFCHSQLSNNSVSFFLYNLDHSHANYYFCNLSIFDPPPFKVTLTGGYLHIYESQLCCQLKFW Predict reactive species |
| Full Name | inducible T-cell co-stimulator |
| Calculated Molecular Weight | 199 aa, 23 kDa |
| Observed Molecular Weight | 28 kDa, 45-50 kDa |
| GenBank Accession Number | BC028210 |
| Gene Symbol | ICOS |
| Gene ID (NCBI) | 29851 |
| RRID | AB_2122590 |
| Conjugate | Unconjugated |
| Form | Liquid |
| Purification Method | Antigen affinity purification |
| UNIPROT ID | Q9Y6W8 |
| Storage Buffer | PBS with 0.02% sodium azide and 50% glycerol, pH 7.3. |
| Storage Conditions | Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA. |
Background Information
Inducible T cell co-stimulator (ICOS) is related to the CD28 superfamily and is highly expressed on activated T cells as well as regulatory T cells and is crucial for the survival and function of T cells, Th2 cell differentiation, and lung inflammatory responses. Binding ICOS to ICOS-ligand (ICOS-L) activates a cascade of intracellular signaling molecules that prevent apoptosis and lead to the production of cytokines such as IL-4 and IL-13. Catalog#13338-1-AP recognizes two bands of 25-30 kDa and 45-50 kDa, and the additional 45-50 kDa band may be due to surface disulfide-linked homodimeric glycoprotein.
Protocols
| Product Specific Protocols | |
|---|---|
| IF protocol for ICOS/CD278 antibody 13338-1-AP | Download protocol |
| WB protocol for ICOS/CD278 antibody 13338-1-AP | Download protocol |
| Standard Protocols | |
|---|---|
| Click here to view our Standard Protocols |
Publications
What published studies show
The ICOS/CD278 Polyclonal antibody (Cat# 13338-1-AP) has 3 citations. They appear in Proceedings of the National Academy of Sciences USA, Cell Reports, and Molecular Carcinogenesis. The research fields span gastric cancer immune evasion (IHC), early-stage lung adenocarcinoma molecular subtyping (IF), and head and neck squamous cell carcinoma immunotherapy response prediction.
| Species | Application | Title |
|---|---|---|
Proc Natl Acad Sci U S A MiR-155-driven loss of ICOSL and SOCS1 in EBV+ gastric cancers renders abundant cytotoxic T cells ineffective, enabling immune evasion. | ||
Cell Rep Proteomic and lipidomic analyses reveal molecular subtypes and potential targets in early-stage lung adenocarcinoma among non-smokers. | ||
Mol Carcinog A Progression-Associated Tumor-Reactive T-Cell Signature Predicts Immunotherapy Response and Reveals ICOS-High CD8 T-Cell Functional States in Head and Neck Squamous Cell Carcinoma. |
