Product Name	IRF3
Chinese Name	Interferon调节因子3
Alias	Interferon regulatory factor 3; IRF-3; IRF 3; IRF3_HUMAN.
literatures	Specific References  (9)     |     SL2993R has been referenced in 9 publications. [IF=8.823] Wang Shang. et al. Early activation of Toll-like receptor-3 reduces the pathological progression of Alzheimer’s disease in APP/PS1 mouse. ALZHEIMERS RES THER. 2023 Dec;15(1):1-17  WB ;  Mouse.   PubMed:36797783 [IF=5.307] Xiaobao Gong. et al. Synthesis and anti-inflammatory activity of paeonol derivatives with etherized aryl urea by regulating TLR4/MyD88 signaling pathway in RAW264.7 cell. BIOORG CHEM. 2022 Oct;127:105939  WB ;  Mouse.   PubMed:35700569 [IF=4.784] Wan B et al. Porcine FcγRIIb mediated PRRSV ADE infection through inhibiting IFN-β by cytoplasmic inhibitory signal transduction. Int J Biol Macromol. 2019 Jul 5;138:198-206.  WB ;  Monkey.   PubMed:31284005 [IF=4.165] Shenjie Zhong. et al. Bmp8a is an essential positive regulator of antiviral immunity in zebrafish. Commun Biol. 2021 Mar;4(1):1-15  IP ;  Zebrafish.   PubMed:33750893 [IF=4.122] Lei Q et al. HEV ORF3 downregulates TLR7 to inhibit the generation of type I interferon via impairment of multiple signaling pathways Q Lei, L Li, S Zhang, T Li, X Zhang, X Ding, B Qin - Scientific Reports, 2018Sci Rep. 2018 Jun 5;8(1):8585.  WB ;  Human.   PubMed:29872132 [IF=3.303] Wang Dong. et al. Classical swine fever virus NS4B protein interacts with MAVS and inhibits IL-8 expression in PAMs. Virus Res. 2021 Nov;:198622  WB ;  Pig.   PubMed:34762991 [IF=2.939] Wei S et al. Overexpression of Toll-like receptor 4 enhances LPS-induced inflammatory response and inhibits Salmonella Typhimurium growth in ovine macrophages.(2018) Eur J Cell Biol.  WB ;  sheep.   PubMed:30522781 [IF=2.16] Dong W et al. MAVS induces a host cell defense to inhibit CSFV infection. Arch Virol. 2018 Jul;163(7):1805-1821.  WB ;  Swine.   PubMed:29556776 [IF=1.64] Fan, Wen-Jie, et al. "NF-κB is involved in the LPS-mediated proliferation and apoptosis of MAC-T epithelial cells as part of the subacute ruminal acidosis response in cows." Biotechnology Letters (2016): 1-11.  WB ;  Bovine.   PubMed:27447467
Research Area	Tumour  immunology  Apoptosis  transcriptional regulatory factor
Immunogen Species	Rabbit
Clonality	Polyclonal
React Species	Human, Mouse, Rat,  (predicted: Dog, Pig, Cow, Horse, )
Applications	WB=1:500-2000 ELISA=1:5000-10000 IHC-P=1:100-500 IHC-F=1:100-500 Flow-Cyt=2ug/Test IF=1:100-500 （Paraffin sections need antigen repair） not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user.
Theoretical molecular weight	47kDa
Cellular localization	The nucleus cytoplasmic
Form	Liquid
Concentration	1mg/ml
immunogen	KLH conjugated synthetic peptide derived from human IRF3: 51-150/427
Lsotype	IgG
Purification	affinity purified by Protein A
Buffer Solution	0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
Storage	Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles.
Attention	This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
PubMed	PubMed
Product Detail	This gene encodes a member of the interferon regulatory transcription factor (IRF) family. The encoded protein is found in an inactive cytoplasmic form that upon serine/threonine phosphorylation forms a complex with CREBBP. This complex translocates to the nucleus and activates the transcription of interferons alpha and beta, as well as other interferon-induced genes. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]. Function: Key transcriptional regulator of type I interferon (IFN)-dependent immune responses and plays a critical role in the innate immune response against DNA and RNA viruses. Regulates the transcription of type I IFN genes (IFN-alpha and IFN-beta) and IFN-stimulated genes (ISG) by binding to an interferon-stimulated response element (ISRE) in their promoters. Acts as a more potent activator of the IFN-beta (IFNB) gene than the IFN-alpha (IFNA) gene and plays a critical role in both the early and late phases of the IFNA/B gene induction. Found in an inactive form in the cytoplasm of uninfected cells and following viral infection, double-stranded RNA (dsRNA), or toll-like receptor (TLR) signaling, becomes phosphorylated by IKBKE and TBK1 kinases. This induces a conformational change, leading to its dimerization and nuclear localization and association with CREB binding protein (CREBBP) to form dsRNA-activated factor 1 (DRAF1), a complex which activates the transcription of the type I IFN and ISG genes. Can activate distinct gene expression programs in macrophages and can induce significant apoptosis in primary macrophages. Subunit: Monomer. Homodimer; phosphorylation-induced. Heterodimer with IRF7. Interacts with CREBBP. May interact with MAVS. Interacts with IKBKE and TBK1. Interacts with TICAM1 and TICAM2. Interacts with rotavirus A NSP1 (via C-terminus); this interaction leads to the proteasome-dependent degradation of IRF3. Interacts with RBCK1. Interacts with TRIM21. Interacts with HERC5. Subcellular Location: Cytoplasm. Nucleus. Note=Shuttles between cytoplasmic and nuclear compartments, with export being the prevailing effect. When activated, IRF3 interaction with CREBBP prevents its export to the cytoplasm. Tissue Specificity: Expressed constitutively in a variety of tissues. Post-translational modifications: Constitutively phosphorylated on many serines residues. C-terminal serine/threonine cluster is phosphorylated in response of induction by IKBKE and TBK1. Ser-385 and Ser-386 may be specifically phosphorylated in response to induction. An alternate model propose that the five serine/threonine residues between 396 and 405 are phosphorylated in response to a viral infection. Phosphorylation, and subsequent activation of IRF3 is inhibited by vaccinia virus protein E3. Ubiquitinated; ubiquitination involves RBCK1 leading to proteasomal degradation. Polyubiquitinated; ubiquitination involves TRIM21 leading to proteasomal degradation. ISGylated by HERC5 resulting in sustained IRF3 activation and in the inhibition of IRF3 ubiquitination by disrupting PIN1 binding. The phosphorylation state of IRF3 does not alter ISGylation. Similarity: Belongs to the IRF family. Contains 1 IRF tryptophan pentad repeat DNA-binding domain. SWISS: Q14653 Gene ID: 3661 Database links: Entrez Gene: 3661 Human Entrez Gene: 54131 Mouse Omim: 603734 Human SwissProt: Q14653 Human SwissProt: P70671 Mouse Unigene: 289052 Human Unigene: 75254 Human Unigene: 3960 Mouse Interferon调节因子家族是一大类对Interferon起调控作用的转录因子的统称。 一般认为Interferon调节因子(IRF)通过调节Interferon的表达而行使其抗病毒、应激、免疫调节功能。近年来，研究人员发现IRF在Apoptosis、细胞周期、Cell differentiation、Tumour发生中也起着重要的调节作用。
Product Picture	Sample: Heart (Mouse) Lysate at 40 ug Primary: Anti-IRF3 (SL2993R) at 1/1000 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 47 kD Observed band size: 51 kD Sample: Heart (Mouse) Lysate at 40 ug Primary: Anti- IRF3 (SL2993R) at 1/1000 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 47 kD Observed band size: 55 kD Sample: 293T(Human) Cell Lysate at 30 ug Lung (Mouse) Lysate at 40 ug Lung (Rat) Lysate at 40 ug Primary: Anti-IRF3 (SL2993R) at 1/2000 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 47 kD Observed band size: 47 kD Sample: Heart(Mouse) Lysate at 40 ug Heart(Rat) Lysate at 40 ug Hela(Human) Cell Lysate at 30 ug Primary: Anti-IRF3 (SL2993R) at 1/1000 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 50 kD Observed band size: 50 kD Sample: Jurkat(Human) Cell Lysate at 30 ug Panc-1(Human) Cell Lysate at 30 ug Pancreas (Mouse) Lysate at 40 ug Kidney (Mouse) Lysate at 40 ug Spleen (Mouse) Lysate at 40 ug A431(Human) Cell Lysate at 30 ug A549(Human) Cell Lysate at 30 ug Testis (Mouse) Lysate at 40 ug Lymph node (Mouse) Lysate at 40 ug Primary: Anti- IRF3 (SL2993R) at 1/1000 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 47 kD Observed band size: 54 kD Sample: Hepg2(Human) Lysate at 40 ug Primary: Anti-IRF3 (SL2993R) at 1/1000 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 47 kD Observed band size: 51 kD Tissue/cell: human kidney tissue; 4% Paraformaldehyde-fixed and paraffin-embedded; Antigen retrieval: citrate buffer ( 0.01M, pH 6.0 ), Boiling bathing for 15min; Block endogenous peroxidase by 3% Hydrogen peroxide for 30min; Blocking buffer (normal goat serum,C-0005) at 37℃ for 20 min; Incubation: Anti-IRF3 Polyclonal Antibody, Unconjugated(SL2993R) 1:200, overnight at 4°C, followed by conjugation to the secondary antibody(SP-0023) and DAB(C-0010) staining Tissue/cell: human colon carcinoma; 4% Paraformaldehyde-fixed and paraffin-embedded; Antigen retrieval: citrate buffer ( 0.01M, pH 6.0 ), Boiling bathing for 15min; Block endogenous peroxidase by 3% Hydrogen peroxide for 30min; Blocking buffer (normal goat serum,C-0005) at 37℃ for 20 min; Incubation: Anti-IRF3 Polyclonal Antibody, Unconjugated(SL2993R) 1:200, overnight at 4°C, followed by conjugation to the secondary antibody(SP-0023) and DAB(C-0010) staining Blank control:Jurkat. Primary Antibody (green line): Rabbit Anti-IRF3 antibody (SL2993R) Dilution: 2μg /10^6 cells; Isotype Control Antibody (orange line): Rabbit IgG . Secondary Antibody : Goat anti-rabbit IgG-FITC Dilution: 1μg /test. Protocol The cells were fixed with 4% PFA (10min at room temperature)and then permeabilized with 90% ice-cold methanol for 20 min at-20℃. The cells were then incubated in 5%BSA to block non-specific protein-protein interactions for 30 min at room temperature .Cells stained with Primary Antibody for 30 min at room temperature. The secondary antibody used for 40 min at room temperature. Acquisition of 20,000 events was performed.

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