ArticleNucleic acids research2026
DNA binding and dimerization of the SOG1 NAC domain are functionally linked with its ability to undergo liquid-liquid phase separation.
Article in Nucleic acids research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Oligomerization-competent PIF4 drives thermomorphogenesis through functional redundancy in transactivation and DNA binding.Nature communications · 2026Article
- PIF4-mediated thermomorphogenesis relies on its oligomerization ability, not DNA-binding or transactivation activity.Research square · 2025Article
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8 authors.
Funding
Abstract
Liquid-liquid phase separation is a key phenomenon in the regulation of transcription in eukaryotes, leading to the formation of so-called membraneless organelles. While transcription factors take part in several types of membraneless organelles, it remains unclear how specific DNA binding, multivalent interactions with DNA/RNA, and condensation are interlinked. Here, we show that the NAC domain of suppressor of gamma response 1 (SOG1) (SOG1NAC), a transcription factor that is central to the DNA damage response in plants, can undergo liquid-liquid phase separation in vitro in the presence of both RNA or double-stranded DNA. This behaviour and the ability of SOG1NAC to bind DNA in a sequence-specific manner are dependent on its potential to form homodimers and the presence of a cluster of positive charges in its DNA-binding site. Short double-stranded DNA fragments containing the sequence motif that is specifically recognized by SOG1NAC inhibit RNA-mediated phase separation, suggesting overlapping binding sites for DNA and RNA. This may reflect a complex interplay between DNA and RNA binding that could control the formation of condensates at transcription sites.
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