ArticleBiochemistry2022
DNA Sequence Specificity Reveals a Role of the HLTF HIRAN Domain in the Recognition of Trinucleotide Repeats.
Article in Biochemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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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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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed, 4 citations in OpenAlex.
- Elucidating HLTF-Mediated DNA Fork Remodeling via Native Mass Spectrometry.Journal of the American Chemical Society · 2026Article
- Probing hot spots of protein-protein interactions mediated by the safety-belt region of REV7.Structure (London, England : 1993) · 2024Article
- Large-scale expansions of Friedreich's ataxia GAA•TTC repeats in an experimental human system: role of DNA replication and prevention by LNA-DNA oligonucleotides and PNA oligomers.Nucleic acids research · 2023Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
DNA damage tolerance (DDT) pathways enable cells to cope with a variety of replication blocks that threaten their ability to complete DNA replication. Helicase-like transcription factor (HLTF) plays a central role in the error-free DDT pathway, template switching (TS), by serving as a ubiquitin ligase to polyubiquitinate the DNA sliding clamp PCNA, which promotes TS initiation. HLTF also serves as an ATP-dependent DNA translocase facilitating replication fork remodeling. The HIP116, Rad5p N-terminal (HIRAN) domain of HLTF specifically recognizes the unmodified 3'-end of single-stranded DNA (ssDNA) at stalled replication forks to promote fork regression. Several crystal structures of the HIRAN domain in complex with ssDNA have been reported; however, optimal ssDNA sequences for high-affinity binding with the domain have not been described. Here we elucidated DNA sequence preferences of HLTF HIRAN through systematic studies of its binding to ssDNA substrates using fluorescence polarization assays and a computational analysis of the ssDNA:HIRAN interaction. These studies reveal that the HLTF HIRAN domain preferentially recognizes a (T/C)TG sequence at the 3'-hydroxyl ssDNA end, which occurs in the CTG trinucleotide repeat (TNR) regions that are susceptible to expansion and deletion mutations identified in neuromuscular and neurodegenerative disorders. These findings support a role for HLTF in maintaining the stability of difficult to replicate TNR microsatellite regions.
Identifiers
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.