ArticleNucleic acids research2022
Molecular interactions underlying the phase separation of HP1α: role of phosphorylation, ligand and nucleic acid binding.
Article in Nucleic acids research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
49 citing papers in PubMed, 71 citations in OpenAlex.
- Ki-67 regulates heterochromatin organization in neurons and forms condensates with heterochromatic components.Nature communications · 2026Article
- Lipid-Mediated DNA-Protein Coupling Reinforces the Mechanics of HP1α-DNA Condensates.Small science · 2026Article
- The role of electrostatic interactions in the phase separation of HP1α and its protein binding partners.bioRxiv : the preprint server for biology · 2026Article
- Investigating Phase Separation in Genome Folding via Multiscale Computational Modeling.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- From chromosomal protein disorder to chromatin phase separation.Epigenetics & chromatin · 2026Review
- Determination of Nucleotide-Nucleotide and Nucleotide-Amino Acid Binding Interactions from All-Atom Potential-of-Mean-Force Calculations.ACS physical chemistry Au · 2026Article
- In vitro reconstitution of heterochromatin compartments reveals the spontaneous formation of tunable liquid-liquid interfaces.Nucleic acids research · 2026Article
- The cGAS-STING pathway at the crossroads of neuroimmunology: bridging innate immunity to aging and neurodegeneration.Biomarker research · 2026Review
- Liquid-Liquid Phase Separation in Major Hallmarks of Cancer.Cell proliferation · 2026Review
- A high-throughput, flow cytometry approach to measure phase behavior and exchange in biomolecular condensates.Nature communications · 2026Article
- Revealing site-specific molecular features mediating contacts of heterochromatin protein 1 α (HP1α) and the interactions with chromatin and DNA in LLPS environments.Communications biology · 2025Article
- Nuclear envelope and chromatin choreography direct cellular differentiation.Nucleus (Austin, Tex.) · 2025Review
- Optimized protein-water interactions and torsional refinements yield balanced atomistic protein force fields.Nature communications · 2025Article
- Multiscale Simulations Elucidate the Mechanism of Polyglutamine Aggregation and the Role of Flanking Domains in Fibril Polymorphism.The journal of physical chemistry. B · 2025Article
- Review
- Expanding the HP1a-binding consensus and molecular grammar for heterochromatin assembly.Nucleic acids research · 2025Article
- Multiphasic Organization and Differential Dynamics of Proteins within Protein-DNA Biomolecular Condensates.The journal of physical chemistry. B · 2025Article
- Direct Observation of the Conformational Transitions in Tau and Their Correlation with Phase Behavior.JACS Au · 2025Article
- Current practices in the study of biomolecular condensates: a community comment.Nature communications · 2025Article
- How chromatin-binding proteins direct distinct folding pathways of tetra-nucleosomes: Insights from coarse-grained simulations.bioRxiv : the preprint server for biology · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 3 institutions in 1 country.
Funding
Abstract
Heterochromatin protein 1α (HP1α) is a crucial element of chromatin organization. It has been proposed that HP1α functions through liquid-liquid phase separation (LLPS), which allows it to compact chromatin into transcriptionally repressed heterochromatin regions. In vitro, HP1α can undergo phase separation upon phosphorylation of its N-terminus extension (NTE) and/or through interactions with DNA and chromatin. Here, we combine computational and experimental approaches to elucidate the molecular interactions that drive these processes. In phosphorylation-driven LLPS, HP1α can exchange intradimer hinge-NTE interactions with interdimer contacts, which also leads to a structural change from a compacted to an extended HP1α dimer conformation. This process can be enhanced by the presence of positively charged HP1α peptide ligands and disrupted by the addition of negatively charged or neutral peptides. In DNA-driven LLPS, both positively and negatively charged peptide ligands can perturb phase separation. Our findings demonstrate the importance of electrostatic interactions in HP1α LLPS where binding partners can modulate the overall charge of the droplets and screen or enhance hinge region interactions through specific and non-specific effects. Our study illuminates the complex molecular framework that can fine-tune the properties of HP1α and that can contribute to heterochromatin regulation and function.
Indexed as
Identifiers
What OpenQuestion holds
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 OpenQuestion graph.