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<p>The Interferon Regulatory Factor (IRF) family of transcription factors is well known for its anti-viral activity in vertebrates. The IRF family comprises nine members (IRF1-9) which have the ability to induce the Interferon beta (IFNβ) promotor. The IRF3 and IRF7 are the key family members involved in the production of type I and type III IFN. IRF3 and IRF7 both comprise of a DNA binding domain (DBD) which binds to its cognate interferon responsive element (IRE) on its target gene promoters. Here, we report near complete backbone and partial side-chain resonance assignments of the DBD domain of the IRF3 subunit of the IRF family. The predicted secondary structure using the backbone chemical shifts largely conforms with that obtained from the crystal structure, with the TALOS-N predicted secondary structures showing slightly elongated β-strands.</p>

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13C and 15N resonance assignments of the DNA binding domain of interferon regulatory factor-3

  • 期刊论文

  • 发表日期：

    2025年4月28日

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  • Nitin Dhaka,
  • Sunirmala Sahoo,
  • Biswajit Samal,
  • Sulakshana P. Mukherjee

摘要

The Interferon Regulatory Factor (IRF) family of transcription factors is well known for its anti-viral activity in vertebrates. The IRF family comprises nine members (IRF1-9) which have the ability to induce the Interferon beta (IFNβ) promotor. The IRF3 and IRF7 are the key family members involved in the production of type I and type III IFN. IRF3 and IRF7 both comprise of a DNA binding domain (DBD) which binds to its cognate interferon responsive element (IRE) on its target gene promoters. Here, we report near complete backbone and partial side-chain resonance assignments of the DBD domain of the IRF3 subunit of the IRF family. The predicted secondary structure using the backbone chemical shifts largely conforms with that obtained from the crystal structure, with the TALOS-N predicted secondary structures showing slightly elongated β-strands.