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Anti-IRF-3 (rabbit polyclonal)

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货号：07-2193

品牌：Millipore 密理博

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重要规格表

Species Reactivity Key Applications Host Format Antibody Type
H, M, R WB Rb Affinity Purified Polyclonal Antibody
Description
Catalogue Number 07-2193
Replaces MABF20
Description Anti-IRF-3 Antibody
Alternate Names
  • interferon regulatory factor 3
Background Information Interferon regulatory factors (IRFs) comprise a family of transcription factors that function with the Jak/Stat pathway to regulate interferon (IFN) and IFN-inducible gene expression in response to viral infection. IRF-3 can inhibit cell growth and plays a critical role in controlling the expression of genes in the innate immune response. In unstimulated cells, IRF-3 is present in the cytoplasm. Viral infection results in phosphorylation of IRF-3 and leads to its translocation to the nucleus where it activates promoters containing IRF-3-binding sites. Phosphorylation of IRF-3 occurs at a cluster of C-terminal serine and threonine residues (between 385 and 405) leading to its association with the p300/CBP coactivator protein that promotes DNA binding and transcriptional activity.
References
Product Information
Format Affinity Purified
Control
  • HeLa cell lysate
Presentation Purified rabbit polyclonal in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Applications
Application Detect the IRF-3 protein using this Anti-IRF-3 validated for use in WB.
Key Applications
  • Western Blotting
Biological Information
Immunogen GST-tagged recombinant protein corresponding to human IRF-3
Concentration Please refer to the Certificate of Analysis for the lot-specific concentration.
Host Rabbit
Species Reactivity
  • Human
  • Mouse
  • Rat
Antibody Type Polyclonal Antibody
Entrez Gene Number
Entrez Gene Summary IRF3 encodes interferon regulatory factor 3, a member of the interferon regulatory transcription factor (IRF) family. IRF3 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 have been described. [provided by RefSeq].
Gene Symbol
  • IRF3
  • IRF-3
Purification Method Affinity Purfied
UniProt Number
UniProt Summary FUNCTION: Mediates interferon-stimulated response element (ISRE) promoter activation. Functions as a molecular switch for antiviral activity. DsRNA generated during the course of an viral infection leads to IRF3 phosphorylation on the C-terminal serine/threonine cluster. 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 genes under the control of ISRE. The complex binds to the IE and PRDIII regions on the IFN-alpha and IFN-beta promoters respectively. IRF-3 does not have any transcription activation domains.

SIZE: 427 amino acids; 47219 Da

SUBUNIT: Homodimer; phosphorylation-induced. Interacts with CREBBP. May interact with MAVS. Interacts with IKBKE and TBK1.

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.

PTM: 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.

SIMILARITY: Belongs to the IRF family. & Contains 1 tryptophan pentad repeat DNA-binding domain.
Molecular Weight ~49 kDa observed
Physicochemical Information
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Safety Information
Product Usage Statements
Quality Assurance Evaluated by Western Blot in HeLa cell lysate.

Western Blot Analysis: 0.05 µg/mL of this antibody detected IRF-3 on 10 µg of HeLa cell lysate.
Usage Statement
  • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Storage and Shipping Information
Storage Conditions Stable for 1 year at 2-8°C from date of receipt.
Packaging Information
Material Size 100 µg
Transport Information
Supplemental Information
Specifications

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