ArticleScientific reports2021
Mapping the electrostatic potential of the nucleosome acidic patch.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 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
9 citing papers in PubMed, 20 citations in OpenAlex.
- Crystal structure of the histone heterodimer containing histone variant H2A.W.Biochemistry and biophysics reports · 2026Article
- Hydropathy Landscapes of Histone-DNA Interactions in Chromatin Building Blocks.The journal of physical chemistry. B · 2026Article
- Structural and electrostatic determinants of RNA recognition by the CSFV Erns glycoprotein.Archives of virology · 2026Article
- AlphaFold-guided structural analyses of nucleosome binding proteins.Nucleic acids research · 2025Article
- MEDOC: A Fast, Scalable, and Mathematically Exact Algorithm for the Site-Specific Prediction of the Protonation Degree in Large Disordered Proteins.Journal of chemical information and modeling · 2025Article
- The role of ribosomal protein networks in ribosome dynamics.Nucleic acids research · 2025Article
- Multiscale modeling reveals the ion-mediated phase separation of nucleosome core particles.Biophysical journal · 2024Article
- Glutamylation of Npm2 and Nap1 acidic disordered regions increases DNA mimicry and histone chaperone efficiency.iScience · 2024Article
- PKAD-2: New entries and expansion of functionalities of the database of experimentally measured pKa's of proteins.Journal of computational biophysics and chemistry · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The nucleosome surface contains an area with negative electrostatic potential known as the acidic patch, which functions as a binding platform for various proteins to regulate chromatin biology. The dense clustering of acidic residues may impact their effective pKa and thus the electronegativity of the acidic patch, which in turn could influence nucleosome-protein interactions. We here set out to determine the pKa values of residues in and around the acidic patch in the free H2A-H2B dimer using NMR spectroscopy. We present a refined solution structure of the H2A-H2B dimer based on intermolecular distance restraints, displaying a well-defined histone-fold core. We show that the conserved histidines H2B H46 and H106 that line the acidic patch have pKa of 5.9 and 6.5, respectively, and that most acidic patch carboxyl groups have pKa values well below 5.0. For H2A D89 we find strong evidence for an elevated pKa of 5.3. Our data establish that the acidic patch is highly negatively charged at physiological pH, while protonation of H2B H106 and H2B H46 at slightly acidic pH will reduce electronegativity. These results will be valuable to understand the impact of pH changes on nucleosome-protein interactions in vitro, in silico or in vivo.
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.