IRF-1 (D5E4) XP® Rabbit mAb (SignalFlex™ Alexa Fluor® 750 Conjugate) #35541
Product Specifications
| REACTIVITY | H M R |
| SENSITIVITY | Endogenous |
| MW (kDa) | |
| Source/Isotype | Rabbit IgG |
Species Cross-Reactivity Key:
- H-Human
- M-Mouse
- R-Rat
Product Information
Product Description
This Cell Signaling Technology® antibody is conjugated to Alexa Fluor® 750 fluorescent dye under optimal conditions and formulated at 200 µg/mL. This antibody conjugate is expected to exhibit the same species cross-reactivity as the unconjugated #8478
Fluorescent Properties
- ← Excitation: 749 nm ← Emission: 775 nm
Product Usage Information
SignalFlex™ conjugates are produced using highly validated Cell Signaling Technology® primary antibodies and conjugation methods that have been rigorously tested, ensuring high-quality conjugates and lot-to-lot consistency. These conjugates are quality control tested by size exclusion chromatography (SEC) to determine antibody integrity. However, they are not tested on specific assays.
Optimal dilutions/concentrations should be determined by the end user. When performing flow cytometry, we recommend using an isotype control conjugate at the same concentration as the antibody conjugate.
Storage
Specificity / Sensitivity
Species Reactivity:
Source / Purification
Background
The IRF-1 transcription factor was originally identified as a regulator of virus-inducible enhancer-like elements of the IFN-β gene (3). IRF-1 is widely expressed and upregulated by viral infection or stimulation with IFN or other cytokines. IRF-1 is serine-phosphorylated by casein kinase II (CKII) at two clustered sites, one in the DNA-binding domain (amino acids 138-150) and another in the transactivation domain (amino acids 219-231) (4). Mutation analysis of the latter site suggests that these phosphorylation sites help regulate IRF-1 activity. Tyrosine phosphorylation has also been shown to be important in IFN-γ-mediated differentiation of myeloid cell lines (5). C-terminal SUMOylated IRF-1 inhibits apoptosis in tumor cells by repression of its transcriptional activity (6).
- Taniguchi, T. et al. (2001) Annu Rev Immunol 19, 623-55.
- Honda, K. and Taniguchi, T. (2006) Nat Rev Immunol 6, 644-58.
- Fujita, T. et al. (1988) EMBO J 7, 3397-405.
- Lin, R. and Hiscott, J. (1999) Mol Cell Biochem 191, 169-80.
- Kautz, B. et al. (2001) J Biol Chem 276, 37868-78.
- Park, J. et al. (2007) Proc Natl Acad Sci USA 104, 17028-33.
Limited Uses
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