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AB275564

Recombinant Human IRF1 protein (His tag)

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Recombinant Human IRF1 protein (His tag) is a Human Fragment protein, in the 11 to 276 aa range, expressed in Escherichia coli, with >90%, < 1 EU/µg endotoxin level, suitable for SDS-PAGE.

View Alternative Names

Interferon regulatory factor 1, IRF-1, IRF1

1 Images
SDS-PAGE - Recombinant Human IRF1 protein (His tag) (AB275564)
  • SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant Human IRF1 protein (His tag) (AB275564)

SDS-PAGE - Recombinant Human IRF1 protein (His tag) (ab275564).

Key facts

Purity

>90% SDS-PAGE

Endotoxin level

< 1 EU/µg

Expression system

Escherichia coli

Tags

His tag N-Terminus

Applications

SDS-PAGE

applications

Biologically active

No

Accession

P10914

Animal free

No

Carrier free

No

Species

Human

Reconstitution

Reconstitute in PBS (pH7.4) to a concentration of 0.1-1.0 mg/mL. Do not vortex.

Storage buffer

Constituents: 81.04% Trehalose, 14.23% Sodium chloride, 3.92% Tris, 0.16% Sodium-N-Lauroylsarcosinate

storage-buffer

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }
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Sequence info

[{"sequence":"WLEMQINSNQ IPGLIWINKE EMIFQIPWKH AAKHGWDINK DACLFRSWAI HTGRYKAGEK EPDPKTWKAN FRCAMNSLPD IEEVKDQSRN KGSSAVRVYR MLPPLTKNQR KERKSKSSRD AKSKAKRKSC GDSSPDTFSD GLSSSTLPDD HSSYTVPGYM QDLEVEQALT PALSPCAVSS TLPDWHIPVE VVPDSTSDLY NFQVSPMPST SEATTDEDEE GKLPEDIMKL LEQSEWQPTN VDGKGYLLNE PGVQPTSVYG DFSCKE","proteinLength":"Fragment","predictedMolecularWeight":"36 kDa","actualMolecularWeight":null,"aminoAcidEnd":276,"aminoAcidStart":11,"nature":"Recombinant","expressionSystem":"Escherichia coli","accessionNumber":"P10914","tags":[{"tag":"His","terminus":"N-Terminus"}]}]
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Properties and storage information

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
-80°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False
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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

IRF1 also known as Interferon Regulatory Factor 1 is a transcription factor playing an important role in the regulation of interferon genes. This protein has a molecular weight of approximately 37 kDa. IRF1 is most commonly expressed in the nucleus but can be found elsewhere in the cell depending on the context. It operates by binding specific DNA sequences and influencing the transcription of genes involved in immune response.
Biological function summary

IRF1 influences cell growth arrest apoptosis and immune responses. It acts as an important regulator in the transcription of interferon-alpha and beta genes. IRF1 functions independently and is not generally part of a larger complex although it interacts with other transcription factors to modulate gene expression.

Pathways

IRF1 plays a significant role in both the type I interferon signaling pathway and the NF-kB pathway. These pathways are essential in the body's response to viral infections and inflammation. IRF1 interacts with proteins like STAT1 and NF-kB to initiate and regulate these immune responses effectively coordinating cellular reactions to external stress signals.

IRF1 has associations with cancer and autoimmune diseases. In several cancer types such as gastric cancer IRF1 expression levels can affect tumor suppression and progression. IRF1 also interacts with proteins like P53 in the context of cancer highlighting its role in immune and apoptotic pathways. In autoimmune conditions like multiple sclerosis altered IRF1 activity can impact disease severity and progression often through its interactions with other immune mediators.
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Specifications

Form

Lyophilized

Additional notes

nan

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General info

Function

Transcriptional regulator which displays a remarkable functional diversity in the regulation of cellular responses (PubMed : 15226432, PubMed : 15509808, PubMed : 17516545, PubMed : 17942705, PubMed : 18497060, PubMed : 19404407, PubMed : 19851330, PubMed : 22367195, PubMed : 32385160). Regulates transcription of IFN and IFN-inducible genes, host response to viral and bacterial infections, regulation of many genes expressed during hematopoiesis, inflammation, immune responses and cell proliferation and differentiation, regulation of the cell cycle and induction of growth arrest and programmed cell death following DNA damage (PubMed : 15226432, PubMed : 15509808, PubMed : 17516545, PubMed : 17942705, PubMed : 18497060, PubMed : 19404407, PubMed : 19851330, PubMed : 22367195). Stimulates both innate and acquired immune responses through the activation of specific target genes and can act as a transcriptional activator and repressor regulating target genes by binding to an interferon-stimulated response element (ISRE) in their promoters (PubMed : 15226432, PubMed : 15509808, PubMed : 17516545, PubMed : 17942705, PubMed : 18497060, PubMed : 19404407, PubMed : 19851330, PubMed : 21389130, PubMed : 22367195). Has an essentail role in IFNG-dependent immunity to mycobacteria (PubMed : 36736301). Competes with the transcriptional repressor ZBED2 for binding to a common consensus sequence in gene promoters (PubMed : 32385160). Its target genes for transcriptional activation activity include : genes involved in anti-viral response, such as IFN-alpha/beta, RIGI, TNFSF10/TRAIL, ZBP1, OAS1/2, PIAS1/GBP, EIF2AK2/PKR and RSAD2/viperin; antibacterial response, such as GBP2, GBP5 and NOS2/INOS; anti-proliferative response, such as p53/TP53, LOX and CDKN1A; apoptosis, such as BBC3/PUMA, CASP1, CASP7 and CASP8; immune response, such as IL7, IL12A/B and IL15, PTGS2/COX2 and CYBB; DNA damage responses and DNA repair, such as POLQ/POLH; MHC class I expression, such as TAP1, PSMB9/LMP2, PSME1/PA28A, PSME2/PA28B and B2M and MHC class II expression, such as CIITA; metabolic enzymes, such as ACOD1/IRG1 (PubMed : 15226432, PubMed : 15509808, PubMed : 17516545, PubMed : 17942705, PubMed : 18497060, PubMed : 19404407, PubMed : 19851330, PubMed : 22367195). Represses genes involved in anti-proliferative response, such as BIRC5/survivin, CCNB1, CCNE1, CDK1, CDK2 and CDK4 and in immune response, such as FOXP3, IL4, ANXA2 and TLR4 (PubMed : 18641303, PubMed : 22200613). Stimulates p53/TP53-dependent transcription through enhanced recruitment of EP300 leading to increased acetylation of p53/TP53 (PubMed : 15509808, PubMed : 18084608). Plays an important role in immune response directly affecting NK maturation and activity, macrophage production of IL12, Th1 development and maturation of CD8+ T-cells (PubMed : 11244049, PubMed : 11846971, PubMed : 11846974, PubMed : 16932750). Also implicated in the differentiation and maturation of dendritic cells and in the suppression of regulatory T (Treg) cells development (PubMed : 11244049, PubMed : 11846971, PubMed : 11846974, PubMed : 16932750). Acts as a tumor suppressor and plays a role not only in antagonism of tumor cell growth but also in stimulating an immune response against tumor cells (PubMed : 20049431).

Sequence similarities

Belongs to the IRF family.

Post-translational modifications

Phosphorylated by CK2 and this positively regulates its activity.. Sumoylation represses the transcriptional activity and displays enhanced resistance to protein degradation (PubMed:17942705). Sumoylated by UBE2I/UBC9 and SUMO1 (By similarity). Inactivates the tumor suppressor activity (PubMed:17942705). Elevated levels in tumor cells (PubMed:17942705). Major site is Lys-275 (PubMed:17942705). Sumoylation is enhanced by PIAS3 (By similarity). Desumoylated by SENP1 in tumor cells and appears to compete with ubiquitination on C-terminal sites (PubMed:17942705).. Ubiquitinated in a SPOP-depedent manner (PubMed:37622993). Appears to compete with sumoylation on C-terminal sites.

Subcellular localisation

Nucleus

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Product protocols

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Target data

Transcriptional regulator which displays a remarkable functional diversity in the regulation of cellular responses (PubMed : 15226432, PubMed : 15509808, PubMed : 17516545, PubMed : 17942705, PubMed : 18497060, PubMed : 19404407, PubMed : 19851330, PubMed : 22367195, PubMed : 32385160). Regulates transcription of IFN and IFN-inducible genes, host response to viral and bacterial infections, regulation of many genes expressed during hematopoiesis, inflammation, immune responses and cell proliferation and differentiation, regulation of the cell cycle and induction of growth arrest and programmed cell death following DNA damage (PubMed : 15226432, PubMed : 15509808, PubMed : 17516545, PubMed : 17942705, PubMed : 18497060, PubMed : 19404407, PubMed : 19851330, PubMed : 22367195). Stimulates both innate and acquired immune responses through the activation of specific target genes and can act as a transcriptional activator and repressor regulating target genes by binding to an interferon-stimulated response element (ISRE) in their promoters (PubMed : 15226432, PubMed : 15509808, PubMed : 17516545, PubMed : 17942705, PubMed : 18497060, PubMed : 19404407, PubMed : 19851330, PubMed : 21389130, PubMed : 22367195). Has an essentail role in IFNG-dependent immunity to mycobacteria (PubMed : 36736301). Competes with the transcriptional repressor ZBED2 for binding to a common consensus sequence in gene promoters (PubMed : 32385160). Its target genes for transcriptional activation activity include : genes involved in anti-viral response, such as IFN-alpha/beta, RIGI, TNFSF10/TRAIL, ZBP1, OAS1/2, PIAS1/GBP, EIF2AK2/PKR and RSAD2/viperin; antibacterial response, such as GBP2, GBP5 and NOS2/INOS; anti-proliferative response, such as p53/TP53, LOX and CDKN1A; apoptosis, such as BBC3/PUMA, CASP1, CASP7 and CASP8; immune response, such as IL7, IL12A/B and IL15, PTGS2/COX2 and CYBB; DNA damage responses and DNA repair, such as POLQ/POLH; MHC class I expression, such as TAP1, PSMB9/LMP2, PSME1/PA28A, PSME2/PA28B and B2M and MHC class II expression, such as CIITA; metabolic enzymes, such as ACOD1/IRG1 (PubMed : 15226432, PubMed : 15509808, PubMed : 17516545, PubMed : 17942705, PubMed : 18497060, PubMed : 19404407, PubMed : 19851330, PubMed : 22367195). Represses genes involved in anti-proliferative response, such as BIRC5/survivin, CCNB1, CCNE1, CDK1, CDK2 and CDK4 and in immune response, such as FOXP3, IL4, ANXA2 and TLR4 (PubMed : 18641303, PubMed : 22200613). Stimulates p53/TP53-dependent transcription through enhanced recruitment of EP300 leading to increased acetylation of p53/TP53 (PubMed : 15509808, PubMed : 18084608). Plays an important role in immune response directly affecting NK maturation and activity, macrophage production of IL12, Th1 development and maturation of CD8+ T-cells (PubMed : 11244049, PubMed : 11846971, PubMed : 11846974, PubMed : 16932750). Also implicated in the differentiation and maturation of dendritic cells and in the suppression of regulatory T (Treg) cells development (PubMed : 11244049, PubMed : 11846971, PubMed : 11846974, PubMed : 16932750). Acts as a tumor suppressor and plays a role not only in antagonism of tumor cell growth but also in stimulating an immune response against tumor cells (PubMed : 20049431).
See full target information IRF1
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