What is an IRF in immunology?
The Interferon regulatory factors (IRFs) are a family of transcription factors that play pivotal roles in many aspects of the immune response, including immune cell development and differentiation and regulating responses to pathogens.
What is IRF in science?
IRF-1 is a transcription factor that is thought to coordinate the expression of multiple inflammatory genes, including cytokines, adhesion molecules, iNOS, and COX-2.175 Data now suggest that IRF-1 is also involved in the mechanisms of cerebral ischemia.
What activates IRF1?
Most studies examining the role of IRF1 in pathogen defense suggest it is an inducible factor, triggered by infection and contributing to the activation of innate immune responses induced by pathogen sensors such as RLRs, TLRs, or cGAS, as described above.
What does IRF3 produce?
IRF3 plays a direct role in SAMHD1 transcriptional regulation. Innate immune responses are initiated by activating TLRs and RLRs signaling pathways, leading to the nuclear translocation of a set of transcription factors, including NF-κB, AP-1, and IRFs.
How do transcription factors interact with DNA?
Transcription factors are proteins that help turn specific genes “on” or “off” by binding to nearby DNA. Transcription factors that are activators boost a gene’s transcription. Groups of transcription factor binding sites called enhancers and silencers can turn a gene on/off in specific parts of the body.
What is iFR medical term?
The instantaneous wave-free ratio (iFR, sometimes referred to as the instant wave-free ratio or instant flow reserve) is a diagnostic tool used to assess whether a stenosis is causing a limitation of blood flow in coronary arteries with subsequent ischemia.
What does SAR mean in medical terms?
List of medical abbreviations: S
| Abbreviation | Meaning |
|---|---|
| SAR | seasonal allergic rhinitis sub-acute rehabilitation facility |
| Sarc | sarcoidosis |
| SARS | severe acute respiratory syndrome |
| SB | small bowel (see small intestine) |
Is IRF3 a transcription factor?
IFN regulatory factor 3 (IRF3) is one of the most well-characterized transcription factors involved in the regulation of innate immune responses.
What is IRF3 5D?
IRF3(5D) is the constitutive active mutant of IRF3. 19,36,37 The seven phosphorylation sites in RD can be phosphorylated by TBK1 or IKK”. The putative proline-dependent phosphorylation sites are Thr3, Ser123, Ser170, Thr180 and Ser339.
Do mediators bind to DNA?
In addition to RNA polymerase II, mediator must also associate with transcription factors and DNA. The mediator functions as a coactivator and binds to the C-terminal domain of RNA polymerase II holoenzyme, acting as a bridge between this enzyme and transcription factors.
What is DNA transcription process?
Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). The newly formed mRNA copies of the gene then serve as blueprints for protein synthesis during the process of translation.
