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MABS1920

Sigma-Aldrich

Anti-IRF-9 Antibody, clone 6F1-H5

clone 6F1-H5, from mouse

Synonym(s):

Interferon regulatory factor 9, IFN-alpha-responsive transcription factor subunit, ISGF3 p48 subunit, Interferon-stimulated gene factor 3 gamma, ISGF-3 gamma, Transcriptional regulator ISGF3 subunit gamma

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

6F1-H5, monoclonal

species reactivity

mouse

should not react with

human

packaging

antibody small pack of 25 μg

technique(s)

ChIP: suitable
western blot: suitable

isotype

IgG2aκ

NCBI accession no.

UniProt accession no.

shipped in

ambient

target post-translational modification

unmodified

Gene Information

mouse ... Irf9(16391)

General description

Interferon regulatory factor 9 (UniProt: Q61179; also known as IRF-9, IFN-alpha-responsive transcription factor subunit, ISGF3 p48 subunit, Interferon-stimulated gene factor 3 gamma, ISGF-3 gamma, Transcriptional regulator ISGF3 subunit gamma) is encoded by the Irf9 (also known as Isgf3g) gene (Gene ID: 16391) in murine species. IRF-9 is a transcription factor that mediates signaling by interferon-alpha and beta. It contains 1 IRF tryptophan pentad repeat DNA-binding domain Following binding of these interferons to cell surface receptors, JAK kinases (Tyk2 ad JAK1) are activated that lead to tyrosine phosphorylation of STAT1 and STAT2. IRF-9 then associates with phosphorylated STAT1:STAT2 dimer to form the interferon-stimulated gene factor 3 (ISFG3) complex that translocates to the nucleus and binds to the interferon stimulated response element (ISRE) to activate the transcription of interferon-stimulated genes. In mice, ablation of IRF-9 is shown to block the proliferation and migration of vascular smooth muscle cells (VSMC) and attenuates intimal thickening in response to injury. On the other hand, IRF-9 gain-of-function is reported to promote VSMC proliferation and migration that can aggravates arterial narrowing. (Ref.: Zhang, SM et al (2015). Nat Commun. 6:6882).

Specificity

Clone 6F1-H5 detects interfereon regulatory factor 9 (IRF-9) of 51 kDa in murine species. May also detect shorter variants of IRF-9.

Immunogen

Epitope: N-terminus
His-tagged full length recombinant longer version (465 amino acids) of murine Interferon regulatory factor 9.

Application

Anti-IRF-9, clone 6F1-H5, Cat. No. MABS1920, is a mouse monoclonal antibody that detects Interferon regulatory factor 9 (IRF-9). It has been tested for use in chromatin Immunoprecipitation and Western Blotting.
Chromatin Immunoprecipitation: Chromatin Immunoprecipitation was performed on a representative lot with wild -type or IRF9 knock-out bone marrow derived marcrophages (uninduced or treated with IFN beta). (Data courtesy of Prof. Thomas Decker, Ph.D., University of Vienna, Austria).
Research Category
Signaling

Quality

Evaluated by Western Blotting in mouse spleen tissue lysate.

Western Blotting Analysis: 0.5 µg/mL of this antibody detected IRF-9 in 10 µg of mouse spleen tissue lysate.

Target description

~51 kDa observed. 44.61 kDa calculated. Uncharacterized bands may be observed in some lysate(s).

Physical form

Format: Purified
Protein G purified
Purified mouse monoclonal antibody IgG2a in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Other Notes

Concentration: Please refer to lot specific datasheet.

Disclaimer

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.

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Nasiha S Ahmed et al.
Proceedings of the National Academy of Sciences of the United States of America, 119(1) (2022-01-06)
Macrophages induce a number of inflammatory response genes in response to stimulation with microbial ligands. In response to endotoxin Lipid A, a gene-activation cascade of primary followed by secondary-response genes is induced. Epigenetic state is an important regulator of the
Catera L Wilder et al.
Molecular systems biology, 19(5), e11294-e11294 (2023-03-18)
Type I interferons (IFN) induce powerful antiviral and innate immune responses via the transcription factor, IFN-stimulated gene factor (ISGF3). However, in some pathological contexts, type I IFNs are responsible for exacerbating inflammation. Here, we show that a high dose of
Camila Marques-da-Silva et al.
Cell reports, 40(3), 111098-111098 (2022-07-21)
Malaria is a devastating disease impacting over half of the world's population. Plasmodium parasites that cause malaria undergo obligatory development and replication in hepatocytes before infecting red blood cells and initiating clinical disease. While type I interferons (IFNs) are known
Ekaterini Platanitis et al.
Nature communications, 10(1), 2921-2921 (2019-07-04)
Cells maintain the balance between homeostasis and inflammation by adapting and integrating the activity of intracellular signaling cascades, including the JAK-STAT pathway. Our understanding of how a tailored switch from homeostasis to a strong receptor-dependent response is coordinated remains limited.

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