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IFI207, a young and fast-evolving antiviral factor, stabilizes STING.
Biorxiv : the Preprint Server for Biology
|January 30, 2023
Summary
A novel gene, Ifi207, enhances innate immunity by stabilizing STING protein, crucial for antiviral responses against MLV infection in mice. This discovery highlights gene recombination
Area of Science:
- Immunology
- Genetics
- Virology
Background:
- Mammalian ALR proteins are key regulators of innate immunity, involved in type I interferon production and inflammasome assembly.
- The ALR gene locus in mice exhibits significant polymorphism in sequence and copy number, suggesting rapid evolution.
- Recent recombination events may introduce novel ALR family members with unique functions.
Conclusions:
- IFI207 is a critical component of the innate immune system, uniquely stabilizing STING to mediate antiviral defense.
- Gene recombination within the dynamic ALR locus can generate novel genes with essential functions under host-pathogen coevolutionary pressure.
- The findings underscore the importance of genetic variation and recombination in shaping host immunity and adapting to pathogens.
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