SKU: 72094247382

IRF3 His Tag Protein, Human

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Description

IRF3 His Tag Protein, HumanProduct Specification Species Human Synonyms IIAE7, Interferon regulatory factor 3 IRF 3 Accession Q14653 Amino Acid Sequence Gly2 Ser427, with N terminal 8*His HHHHHHHHHHDYKDDDDKKRAAAKHLIERYYHQLTEGCGNEACTNEFCASCP

Product Specification


Species Human
Synonyms IIAE7, Interferon regulatory factor 3 IRF 3
Accession Q14653
Amino Acid Sequence

Gly2-Ser427, with N-terminal 8*His HHHHHHHHHHDYKDDDDKKRAAAKHLIERYYHQLTEGCGNEACTNEFCASCP HHHHHHHHGTPKPRILPWLVSQLDLGQLEGVAWVNKSRTRFRIPWKHGLRQDAQQEDFGIFQAWAEATGAYVPGRDKPDLPTWKRNFRSALNRKEGLRLAEDRSKDPHDPHKIYEFVNSGVGDFSQPDTSPDTNGGGSTSDTQEDILDELLGNMVLAPLPDPGPPSLAVAPEPCPQPLRSPSLDNPTPFPNLGPSENPLKRLLVPGEEWEFEVTAFYRGRQVFQQTISCPEGLRLVGSEVGDRTLPGWPVTLPDPGMSLTDRGVMSYVRHVLSCLGGGLALWRAGQWLWAQRLGHCHTYWAVSEELLPNSGHGPDGEVPKDKEGGVFDLGPFIVDLITFTEGSGRSPRYALWFCVGESWPQDQPWTKRLVMVKVVPTCLRALVEMARVGGASSLENTVDLHISNSHPLSLTSDQYKAYLQDLVEGMDFQGPGES

Expression System E.coli
Molecular Weight

48.2kDa

Purity >95% by SDS-PAGE
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer 20mM Tris, 500mM NaCl, 1mM EDTA, 2mM DTT, pH8.0
Reconstitution

Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.

Stability & Storage · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃.
· 3 months, -20 to -80℃ under sterile conditions after reconstitution.
· 1 week, 2 to 8℃ under sterile conditions after reconstitution.
· Please avoid repeated freeze-thaw cycles.
Reference

1.J Cell Sci. 2019 Jul 24;133(5): jcs230409.
2.Science.2020 Oct 23;370(6515):eabd4570. Epub 2020 Sep 24.
3.Immunity. 2006 Sep;25(3):349-60.
4. Proc Natl Acad Sci U S A. 2016 Jun 14;113(24):E3403-12.Epub 2016 Jun 2.
5. Biochem Pharmacol. 2006 Nov 30;72(11):1469-76. Epub 2006 Jul 17.

Background

Regulatory factor (IRF) family - IRF-3 is the 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. IRF3 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. It 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. IRF3found 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. 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. It can activate distinct gene expression programs in macrophages and can induce significant apoptosis in primary macrophages.

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SKU: 72094247382

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cathie
Alexandria, US
★★★★★ 5
Great fit
Size: 38DDD, Color: French Blue Lace
I first ordered this bra about 3 years ago. You know how us woman are we have more than one bra and more than one style of bra. This one style is the one I mostly reached out for. Then I went and lost around 45 pounds and it just didn't fit right any more. I went to to one of those "Bra Stores" and tried on a bunch of different bras none felt like it fit right so I came home and "measured" myself and I ordered a pretty blue one from comfort choice. My old bra was a 42G my new size is 38DDD. It fit so well I ordered 2 more. Light grey and pretty pink. I love these they are very comfortable and they hold the girls in place! Me I'm 67 5'3" and 165lbs.
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Reviewed in the United States on August 2, 2025
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Sheree Patnaude
Phoenix, US
★★★★★ 5
Comfortable support
Size: 46G, Color: Nude
This bra gives you all the support you need and is comfortable.
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Reviewed in the United States on May 16, 2026
P
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Purplehearts
Massapequa, US
★★★★★ 4
Nice support but...
Size: 42DDD, Color: Black
I ordered this for my cousin who finds it very difficult to find bras in her size. She told me she wished she could find a good support bra without the wire because she had deep red marks under her old bra so I did some research and found this bra. She came over and tried it on and my first impression was WOW the support is great but it was very difficult for her to fasten all the hooks in the front due to her long nails. After some time she managed to fasten all the hooks and I noticed I needed to adjust the straps for her and she said it felt a lot better. This wireless bra looks so different on a woman with large breasts than the models in the picture, my cousin's cleavage was very substantial, unlike the model in the pic so if you are heavy set with large breasts, just know you will still have ample cleavage showing. After she put her top back on I noticed just how smooth her back looked, there were no bulges showing and she told me she felt like her posture was better due to the support of this bra. I have four stars due to the hooks being difficult to fasten.
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Reviewed in the United States on August 2, 2025
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Smaller than shown. Arms are very very small.
Lowell, US
★★★★★ 1
No support
Size: 42D, Color: Dark Turq Lace
No support, fits large.
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Reviewed in the United States on March 3, 2026
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Beach Lover
West Palm Beach, US
★★★★★ 5
No more shoulder pain!
Size: 52DD, Color: Shell Pink
Very comfortable & quality fabric. Very pleased with the fit & no more shoulder pain!
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Reviewed in the United States on July 11, 2025

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