ArticleNucleic acids research2026
Zinc-finger transcription factor Fzf1 binds to its target DNA in a non-canonical manner.
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 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Zinc-Finger 5 Is an Activation Domain in theJournal of fungi (Basel, Switzerland) · 2025Article
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4 authors.
Funding
Abstract
Saccharomyces cerevisiae Fzf1 is a transcriptional regulator with five Cys2His2 zinc fingers, controlling the expression of SSU1, YHB1, DDI2/3, and YNR064C genes through a shared promoter sequence CS2. After exposure to chemicals such as cyanamide (CY) or methyl methanesulfonate (MMS), Fzf1-regulated gene expression increases in yeast cells without concomitant changes in Fzf1 levels, suggesting that chemical modification of Fzf1 leads to increased transcription of target genes. Here, we showed that Fzf1 binds to the four known CS2 promoter sequences with comparable nanomolar affinity, while treatment of Fzf1 with inducing chemicals CY or MMS modestly increased its binding affinity for CS2 sequences. Crystallographic analysis of the N-terminal three zinc fingers of Fzf1 bound to a 26-bp YHB1 CS2 DNA containing the consensus sequence 3'-C3G4T5C6T7G8A9T10A11G12T13-5' reveals non-canonical recognition of duplex DNA for a zinc finger transcription factor. The first zinc finger interacts with the 5'-end dG3' of the standard non-recognition strand, while the second and third fingers read two (3'-T7G8-5') and four (3'-T10A11G12T13-5') adjacent base pairs on the recognition strand, respectively. Recognition of the DNA phosphodiester backbone by Fzf1 mostly resembles other zinc finger proteins. Future work will aim to elucidate how chemical modification of Fzf1 increases transcriptional activation in vivo.
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