ArticleNature communications2021
HPF1 remodels the active site of PARP1 to enable the serine ADP-ribosylation of histones.
Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.
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Who cites it
53 citing papers in PubMed, 85 citations in OpenAlex.
- Structural basis of PARP2 recognition of nucleosomal DNA breaks and inhibitor trapping.Nucleic acids research · 2026Article
- Navigating the base excision repair pathway in chromatin-focus on oxidative DNA damage.Nucleic acids research · 2026Review
- The BRCT domain enhances DNA binding and catalytic efficiency of fungal PARPs.Nature communications · 2026Article
- Cryo-EM structure of ALC1 in an open conformation bound to a PARylated nucleosome.Acta crystallographica. Section D, Structural biology · 2026Article
- Reactive oxygen species (ROS) in cancer: from mechanism to therapeutic implications.Signal transduction and targeted therapy · 2026Review
- HPF1 regulates the formation of FUS-dependent compartments by PARP1 and PARP2 activation on damaged DNA.Nucleic acids research · 2026Article
- PARP1-HPF1 structure and dynamics on nicked DNA suggest a mechanism for acute and localized ADP-ribosylation.Nature communications · 2026Article
- A SERS-based biosensor for optical monitoring of PARP1 trapping dynamics and high-throughput screening of modulators.Journal of nanobiotechnology · 2026Article
- Histone modifications in skin fibrosis: linking immune dysregulation, metabolic reprogramming, and persistent fibrotic remodeling.Frontiers in immunology · 2026Review
- Histone PARylation factor 1: a review of its role in the DNA damage response.Nucleic acids research · 2025Review
- PARP enzyme synthesis of protein-free poly(ADP-ribose): Implications for DNA damage signaling and repair.DNA repair · 2025Review
- Deciphering the dark side of histone ADP-ribosylation: what structural features of damaged nucleosome regulate the activities of PARP1 and PARP2.Nucleic acids research · 2025Article
- Green Synthesis of Gold Nanoparticles and Their Cytotoxic Effect in Breast Cancer: An Experimental and Theoretical Study.ACS applied bio materials · 2025Article
- Single nucleosome imaging reveals principles of transient multiscale chromatin reorganization triggered by histone ADP-ribosylation at DNA lesions.Nature communications · 2025Article
- Targeting DNA damage sensors for cancer therapy.DNA repair · 2025Review
- A PARP2 active site helix melts to permit DNA damage-induced enzymatic activation.Molecular cell · 2025Article
- Review
- PARP enzyme de novo synthesis of protein-free poly(ADP-ribose).Molecular cell · 2024Article
- Aminomethylmorpholino Nucleosides as Novel Inhibitors of PARP1 and PARP2: Experimental and Molecular Modeling Analyses of Their Selectivity and Mechanism of Action.International journal of molecular sciences · 2024Article
- PARP1-dependent DNA-protein crosslink repair.Nature communications · 2024Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Upon binding to DNA breaks, poly(ADP-ribose) polymerase 1 (PARP1) ADP-ribosylates itself and other factors to initiate DNA repair. Serine is the major residue for ADP-ribosylation upon DNA damage, which strictly depends on HPF1. Here, we report the crystal structures of human HPF1/PARP1-CAT ΔHD complex at 1.98 Å resolution, and mouse and human HPF1 at 1.71 Å and 1.57 Å resolution, respectively. Our structures and mutagenesis data confirm that the structural insights obtained in a recent HPF1/PARP2 study by Suskiewicz et al. apply to PARP1. Moreover, we quantitatively characterize the key residues necessary for HPF1/PARP1 binding. Our data show that through salt-bridging to Glu284/Asp286, Arg239 positions Glu284 to catalyze serine ADP-ribosylation, maintains the local conformation of HPF1 to limit PARP1 automodification, and facilitates HPF1/PARP1 binding by neutralizing the negative charge of Glu284. These findings, along with the high-resolution structural data, may facilitate drug discovery targeting PARP1.
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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 OpenQuestion graph.