IRF3 Polyclonal antibody

• Featured Product
• KD/KO Validated

IRF3 Polyclonal Antibody for FC, IF, IHC, IP, WB, ELISA

Host / Isotype

Rabbit / IgG

Reactivity

human, mouse and More (4)

Applications

WB, IP, IHC, IF, FC, CoIP, ChIP

Conjugate

Unconjugated

Publications

76

Reviews (1)

Cat no : 11312-1-AP

Synonyms

interferon regulatory factor 3, IRF 3, IRF3

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Validation Data Gallery

• 

  WB analysis of HeLa using 11312-1-AP

  HeLa cells were subjected to SDS PAGE followed by western blot with 11312-1-AP (IRF3 antibody) at dilution of 1:5000 incubated at room temperature for 1.5 hours.

• 

  WB analysis of Jurkat cells using 11312-1-AP

  WB result of IRF3 specific antibody (11312-1-AP, 1:5000) with si-control and si-IRF3 transfected Jurkat cells.

• 

  IP experiment of Jurkat using 11312-1-AP

  IP Result of anti-IRF3 (IP:11312-1-AP, 3ug; Detection:11312-1-AP 1:1000) with Jurkat cells lysate 2400ug.

• 

  IHC staining of human spleen using 11312-1-AP

  Immunohistochemical analysis of paraffin-embedded human spleen using 11312-1-AP (IRF3 antibody) at dilution of 1:50 (under 40x lens).

• 

  FC experiment of HepG2 using 11312-1-AP

  1X10^6 HepG2 cells were intracellularly stained with 0.2 ug Anti-Human IRF3 (11312-1-AP) and CoraLite®488-Conjugated AffiniPure Goat Anti-Rabbit IgG(H+L) at dilution 1:1000 (red), or 0.2 ug Control Antibody. Cells were fixed and permeabilized with Transcription Factor Staining Buffer Kit (PF00011).

• 

  IF Staining of HepG2 using 11312-1-AP

  Immunofluorescent analysis of HepG2 cells, using IRF3 antibody 11312-1-AP at 1:25 dilution and Rhodamine-labeled goat anti-rabbit IgG (red).

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Tested Applications

• Positive WB detected in: HeLa cells, U-937 cells, human brain tissue, Jurkat cells, mouse brain tissue
• Positive IP detected in: Jurkat cells
• Positive IHC detected in: human spleen tissue; Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
• Positive IF detected in: HepG2 cells
• Positive FC detected in: HepG2 cells

Planning an IF experiment? We recommend our CoraLite®488 and CoraLite®555 conjugated versions of this antibody.

Recommended dilution

• Western Blot (WB): WB : 1:2000-1:10000
• Immunoprecipitation (IP): IP : 0.5-4.0 ug for IP and 1:500-1:2000 for WB
• Immunohistochemistry (IHC): IHC : 1:50-1:200
• Immunofluorescence (IF): IF : 1:10-1:100

Sample-dependent, check data in validation data gallery

Published Applications

• KD/KO: See 2 publications below
• WB: See 71 publications below
• IHC: See 1 publications below
• IF: See 12 publications below
• IP: See 5 publications below
• CoIP: See 1 publications below
• ChIP: See 1 publications below

Product Information

11312-1-AP targets IRF3 in WB, IP, IHC, IF, FC, CoIP, ChIP applications and shows reactivity with human, mouse samples.

• Tested Reactivity: human, mouse
• Cited Reactivity: human, monkey, mouse, pig, rat, sheep
• Host / Isotype: Rabbit / IgG
• Class: Polyclonal
• Type: Antibody
• Immunogen: IRF3 fusion protein Ag1858
• Full Name: interferon regulatory factor 3
• Calculated molecular weight: 47 kDa
• Observed molecular weight: 49-55 kDa
• GenBank accession number: BC009395
• Gene symbol: IRF3
• Gene ID (NCBI): 3661
• Conjugate: Unconjugated
• Form: Liquid
• Purification Method: Antigen affinity purification
• Storage Buffer: PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
• Storage Conditions: Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20^oC storage.

Background Information

The virul-induced expression of interferon(IFN) genes in infected cells implicate in the interplay of several constitutively expressed and virus-activated transcription factors. A family of IFN regulatory factors(IRFs) have been shown to has a role in the transcription of IFN genes as well as IFN-stimulated genes. IRF3 is a novel key transcriptional regulator of type I IFN-dependent immune responses and involves in the innate immune response against DNA and RNA viruses, by binding to the promoters of IFN. It located in the cytoplasm of uninfected cells in an inactive form, and following viral infection, double-stranded RNA (dsRNA), or toll-like receptor (TLR) signaling, could be phosphorylated by IKBKE and TBK1 kinases. This induces a conformational change, leading to its dimerization, 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. IRF3 exists some isoforms with MV 47-49 kDa, 33 kDa and 12-16 kDa.

Publications

Species	Application	Title
human	WB	Front Immunol; Herpes Simplex Virus Type 2 Immediate Early Protein ICP27 Inhibits IFN-β Production in Mucosal Epithelial Cells by Antagonizing IRF3 Activation.; Authors - Xinmeng Guan
mouse	WB	Front Physiol; Evidence for Sexual Dimorphism in the Response to TLR3 Activation in the Developing Neonatal Mouse Brain: A Pilot Study.; Authors - Raul Chavez-Valdez
		FASEB J; USP7-TRIM27 axis negatively modulates antiviral type I IFN signaling.; Authors - Juan Cai
human	WB,IF	ACS Infect Dis; PMID: 32167734; Authors - Yuan-Qin Min
human	WB	Virol Sin; SRP54 Negatively Regulates IFN-Beta Production and Antiviral Response by Targeting RIG-I and MDA5.; Authors - Dong-Peng Wang
human	WB	Cell Rep; A Nuclear Export Signal Is Required for cGAS to Sense Cytosolic DNA.; Authors - Hong Sun

Reviews

The reviews below have been submitted by verified Proteintech customers who received an incentive forproviding their feedback.

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FH

Sarah (Verified Customer) (12-18-2019)

This antibody is awesome- been searching for an Pab IRF 3 antibody that works well in a species other than human, and we finally found this one! Thank you!

• Applications: Western Blot,

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