AB313423

Anti-IRF3 antibody [RP23040263]

Recombinant
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Rabbit Recombinant Multiclonal IRF3 antibody. Suitable for ICC/IF, WB and reacts with Human samples. Immunogen corresponding to Recombinant Full Length Protein corresponding to Human IRF3.

View Alternative Names

Interferon regulatory factor 3, IRF-3, IRF3

2 Images

Immunocytochemistry/ Immunofluorescence - Anti-IRF3 Antibody [RP23040263] (AB313423)

ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - Anti-IRF3 Antibody [RP23040263] (AB313423)

Immunofluorescent analysis of A549 cells fixed with 4% formaldehyde reconstituted in 1X PBS for 10 min at room temperature and permeabilized with 0.1 % Triton X-100 in PBS for 15 min at room temperature labeling endogenous IRF3 with ab313423 at 1/100 dilution followed by Goat anti-Rabbit IgG (H+L) Secondary Antibody, Alexa Fluor® 488 conjugate at 1/2000 dilution. Nuclei (blue) were stained using DAPI and cytoskeletal F-actin (red) staining using Rhodamine Phalloidin at 1/300 dilution. Panel a-d) shows representative untransfected cells that were stained for detection and localization of IRF3 protein (green) with cytoplasmic signal compared to panel e-h) clearly demonstrating translocation and localisation of IRF3 in nucleus of A549 cells transfected with Poly (dA : dT) (2µg/mL, 4h). The images were captured at 60X magnification.

Supplier Data

Western blot - Anti-IRF3 Antibody [RP23040263] (AB313423)

All lanes:

Western blot - Anti-IRF3 Antibody [RP23040263] (ab313423) at 1/250 dilution

Lane 1:

A549 whole cell extract at 30 µg

Lane 2:

HCT 116 whole cell extract at 30 µg

Lane 3:

HeLa whole cell extract at 30 µg

Lane 4:

HT-29 whole cell extract at 30 µg

Lane 5:

MCF7 whole cell extract at 30 µg

Lane 6:

Hep G2 whole cell extract at 30 µg

Lane 7:

K-562 whole cell extract at 30 µg

Lane 8:

Jurkat whole cell extract at 30 µg

Secondary

All lanes:

Goat anti-Rabbit IgG (H+L) Secondary Antibody, HRP conjugate at 1/4000 dilution

Observed band size: 47 kDa

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Key facts

Host species

Rabbit

Clonality

Multiclonal

Clone number

RP23040263

Isotype

IgG

Carrier free

Reacts with

Human

Applications

WB, ICC/IF

applications

Immunogen

Recombinant Full Length Protein corresponding to Human IRF3.

Q14653

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "1/100", "ICCIF-species-notes": "<p></p>", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/250", "WB-species-notes": "<p></p>" } } }

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Product details

What are recombinant multiclonals?
Recombinant multiclonals are a mixture of recombinant antibodies co-expressed from a library of heavy and light chains. They offer several advantages including:

- The sensitivity of polyclonal antibodies by recognising multiple epitopes
- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free batch production

View our range of recombinant multiclonal antibodies.

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Properties and storage information

Form

Liquid

Purification technique

Affinity purification Protein A

Storage buffer

pH: 7.4 Preservative: 0.09% Sodium azide Constituents: PBS

Shipped at conditions

Blue Ice

Appropriate short-term storage duration

1-2 weeks

Appropriate short-term storage conditions

+4°C

Appropriate long-term storage conditions

-20°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle

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Supplementary information

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.

Biological function summary

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.

Pathways

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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Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

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Target data

Key transcriptional regulator of type I interferon (IFN)-dependent immune responses which plays a critical role in the innate immune response against DNA and RNA viruses (PubMed : 22394562, PubMed : 24049179, PubMed : 25636800, PubMed : 27302953, PubMed : 31340999, PubMed : 36603579, PubMed : 8524823). 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 (PubMed : 11846977, PubMed : 16846591, PubMed : 16979567, PubMed : 20049431, PubMed : 32972995, PubMed : 36603579, PubMed : 8524823). 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 (PubMed : 16846591, PubMed : 16979567, PubMed : 20049431, PubMed : 36603579). 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, is phosphorylated by IKBKE and TBK1 kinases (PubMed : 22394562, PubMed : 25636800, PubMed : 27302953, PubMed : 36603579). 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 (PubMed : 16154084, PubMed : 27302953, PubMed : 33440148, PubMed : 36603579). Can activate distinct gene expression programs in macrophages and can induce significant apoptosis in primary macrophages (PubMed : 16846591). In response to Sendai virus infection, is recruited by TOMM70 : HSP90AA1 to mitochondrion and forms an apoptosis complex TOMM70 : HSP90AA1 : IRF3 : BAX inducing apoptosis (PubMed : 25609812). Key transcription factor regulating the IFN response during SARS-CoV-2 infection (PubMed : 33440148).

See full target information IRF3

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Product promise

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Anti-IRF3 antibody [RP23040263]

Immunocytochemistry/ Immunofluorescence - Anti-IRF3 Antibody [RP23040263] (AB313423)

Western blot - Anti-IRF3 Antibody [RP23040263] (AB313423)

Key facts

Host species

Clonality

Clone number

Isotype

Carrier free

Reacts with

Applications

Immunogen

Reactivity data

Product details

Properties and storage information

Form

Purification technique

Storage buffer

Shipped at conditions

Appropriate short-term storage duration

Appropriate short-term storage conditions

Appropriate long-term storage conditions

Aliquoting information

Storage information

Supplementary information

Biological function summary

Pathways

Product protocols

Target data

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Secondary Antibodies

Primary Antibodies

Primary Antibodies

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