IRF3 KO cell lysate available now. KO validated by Western blot. Free of charge wild type control included. Knockout achieved by using CRISPR/Cas9, 2 bp insertion in exon4.
A549
Human
Lung
Sanger Sequencing, Western blot
Knockout achieved by using CRISPR/Cas9, 2 bp insertion in exon4.
IIAE7, IRF3_HUMAN, Interferon regulatory factor 3, MGC94729
IRF3 KO cell lysate available now. KO validated by Western blot. Free of charge wild type control included. Knockout achieved by using CRISPR/Cas9, 2 bp insertion in exon4.
A549
Human
Lung
Sanger Sequencing, Western blot
Knockout achieved by using CRISPR/Cas9, 2 bp insertion in exon4.
Carcinoma
IRF3
Knockout
CRISPR technology
Sanger Sequencing, Western blot
CSF1PO, D13S317, D7S820, D5S818, TH01, D16S539, TPOX
EU: 1 US: 1
Adherent
Male
Ambient - Can Ship with Ice
-20°C
-20°C
Knockout cell lysate achieved by CRISPR/Cas9.
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Lysate preparation: Our lysates are made using RIPA buffer to which we add a protease inhibitor cocktail and phosphatase inhibitor cocktail (ratio: 300:100:10). This means that the protein of interest is denatured. If you require a native form of the protein please use the live cell version. Please refer to our lysis protocol for further details on how our lysates are prepared.
User storage instructions: Lyophilizate may be stored at 4°C. After reconstitution, store at -20°C for short-term storage or -80°C for long-term storage.
This product is subject to limited use licenses from The Broad Institute, ERS Genomics Limited and Sigma-Aldrich Co. LLC, and is developed with patented technology. For full details of the licenses and patents please refer to our limited use license and patent pages.
This supplementary information is collated from multiple sources and compiled automatically.
IRF3 also known as Interferon Regulatory Factor 3 acts as an important transcription factor in the immune response. It has a molecular weight of approximately 47 kDa. The IRF3 protein is mainly expressed in the cytoplasm and nucleus of various cell types including immune cells such as macrophages and dendritic cells. The protein becomes activated through phosphorylation a process frequently identified in its phosphorylated form phospo-IRF3 or p-IRF3 which facilitates its role in immune function.
IRF3 participates in the regulation of type I interferon (IFN) response a fundamental antiviral defense mechanism. IRF3 when phosphorylated forms a complex with CBP/p300 which then translocates to the nucleus to drive the expression of IFN-stimulated genes. This action strengthens the innate immune response and boosts the body's ability to counteract viral infections. Its activity and regulation are significant for maintaining a balanced immune response without excessive inflammation.
IRF3 is involved in the Toll-like receptor (TLR) and RIG-I-like receptor (RLR) signaling pathways both essential in pathogen recognition and response. Within these pathways IRF3 interacts with proteins such as MAVS and TBK1 to propagate immune signaling. The activation of IRF3 in these pathways results in the production of type I interferons and other cytokines orchestrating an effective antiviral response. These interactions highlight the protein's central role in mediating immune signaling cascades.
IRF3's malfunction or deregulation can contribute to autoimmune diseases and antiviral deficiencies. Conditions such as systemic lupus erythematosus (SLE) and chronic hepatitis B infection are linked to IRF3 activity. During autoimmune responses or viral persistence the aberrant activation of IRF3 can lead to inappropriate immune responses. The connection with proteins like STAT1 in these conditions highlights the complex network IRF3 engages in facilitating its impact on disease progression and immune dysregulation.
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Lane 1: A549 cell lysate 20 ug
Lane 2: IRF3 knockout A549 cell lysate 20 ug
Lanes 1 - 2: Merged signal (red and green). Green - Anti-IRF3 antibody [EP2419Y] ab76409 observed at 50 kDa. Red - loading control Anti-GAPDH antibody [6C5] - Loading Control ab8245 (Mouse anti-GAPDH antibody [6C5]) observed at 37kDa.
Anti-IRF3 antibody [EP2419Y] ab76409 was shown to react with IRF3 in wild-type A549 cells in western blot with loss of signal observed in IRF3 knockout cell line Human IRF3 knockout A549 cell line ab267098 (IRF3 knockout cell lysate ab256954). Wild-type and IRF3 knockout A549 cell lysates were subjected to SDS-PAGE. Membranes were blocked in 3% milk in TBS-T (0.1% Tween®) before incubation with Anti-IRF3 antibody [EP2419Y] ab76409 and Anti-GAPDH antibody [6C5] - Loading Control ab8245 (Mouse anti-GAPDH antibody [6C5]) overnight at 4°C at a 1 in 1000 dilution and a 1 in 20000 dilution respectively. Blots were incubated with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
All lanes: Western blot - Anti-IRF3 antibody [EP2419Y] (Anti-IRF3 antibody [EP2419Y] ab76409) at 1/1000 dilution
Lane 1: Wild-type A549 cell lysate at 20 µg
Lane 2: IRF3 knockout A549 cell lysate at 20 µg
Performed under reducing conditions.
Predicted band size: 47 kDa
Observed band size: 50 kDa
Lane 1: A549 cell lysate 20 ug
Lane 2: IRF3 knockout A549 cell lysate 20 ug
Lanes 1 - 2:Merged signal (red and green). Green - Anti-IRF3 antibody [EPR2418Y] ab68481 observed at 50 kDa. Red - loading control Anti-GAPDH antibody [6C5] - Loading Control ab8245 (Mouse anti-GAPDH antibody [6C5]) observed at 37kDa.
Anti-IRF3 antibody [EPR2418Y] ab68481 was shown to react with IRF3 in wild-type A549 cells in western blot with loss of signal observed in IRF3 knockout cell line Human IRF3 knockout A549 cell line ab267098 (IRF3 knockout cell lysate ab256954). Wild-type and IRF3 knockout A549 cell lysates were subjected to SDS-PAGE. Membranes were blocked in 3% milk in TBS-T (0.1% Tween®) before incubation with Anti-IRF3 antibody [EPR2418Y] ab68481 and Anti-GAPDH antibody [6C5] - Loading Control ab8245 (Mouse anti-GAPDH antibody [6C5]) overnight at 4°C at a 1 in 1000 dilution and a 1 in 20000 dilution respectively. Blots were incubated with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
All lanes: Western blot - Anti-IRF3 antibody [EPR2418Y] (Anti-IRF3 antibody [EPR2418Y] ab68481) at 1/1000 dilution
Lane 1: Wild-type A549 cell lysate at 20 µg
Lane 2: IRF3 knockout A549 cell lysate at 20 µg
Performed under reducing conditions.
Predicted band size: 47 kDa
Observed band size: 50 kDa
Homozygous: 2 bp insertion in exon4
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