98%
921
2 minutes
20
Histone post-translational modifications (PTMs) play a critical role in chromatin regulation. It has been proposed that these PTMs form localized 'codes' that are read by specialized regions (reader domains) in chromatin-associated proteins (CAPs) to regulate downstream function. Substantial effort has been made to define [CAP: histone PTM] specificities, and thus decipher the histone code and guide epigenetic therapies. However, this has largely been done using the reductive approach of isolated reader domains and histone peptides, which cannot account for any higher-order factors. Here, we show that the [BPTF PHD finger and bromodomain: histone PTM] interaction is dependent on nucleosome context. The tandem reader selectively associates with nucleosomal H3K4me3 and H3K14ac or H3K18ac, a combinatorial engagement that despite being in cis is not predicted by peptides. This in vitro specificity of the BPTF tandem reader for PTM-defined nucleosomes is recapitulated in a cellular context. We propose that regulatable histone tail accessibility and its impact on the binding potential of reader domains necessitates we refine the 'histone code' concept and interrogate it at the nucleosome level.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10876215 | PMC |
http://dx.doi.org/10.7554/eLife.78866 | DOI Listing |
Cereb Cortex
August 2025
Faculty of Psychology and Education Science, Department of Psychology, University of Geneva, Chemin des Mines 9, Geneva, 1202, Switzerland.
Language learning and use relies on domain-specific, domain-general cognitive and sensory-motor functions. Using fMRI during story listening and behavioral tests, we investigated brain-behavior associations between linguistic and non-linguistic measures in individuals with varied multilingual experience and reading skills, including typical reading participants (TRs) and dyslexic readers (DRs). Partial Least Square Correlation revealed a main component linking cognitive, linguistic, and phonological measures to amodal/associative brain areas.
View Article and Find Full Text PDFPlant J
September 2025
Université de Strasbourg, CNRS, IBMP UPR 2357, Strasbourg, France.
Trimethylation of histone H3 at lys36 (H3K36me3) promotes gene transcription and governs plant development and plant responses to environmental cues. Yet, how H3K36me3 is translated into specific downstream events remains largely uninvestigated. Here, we report that the Arabidopsis PWWP-domain protein HUA2 binds methyl-H3K36 in a PWWP motif-dependent manner.
View Article and Find Full Text PDFSci Adv
September 2025
Department of Cell Biology, New York University School of Medicine, New York, NY 10016, USA.
ADP-ribosylation can occur as mono-ADP-ribose (MAR) or be extended into poly-ADP-ribose (PAR). Tankyrase, a PAR transferase, adds PAR to itself and other proteins targeting them for proteasomal degradation via the PAR-binding E3 ligase RNF146. This degradation can be counteracted by RING-UIM E3 ligases RNF114 and RNF166, although the process is unclear.
View Article and Find Full Text PDFAJR Am J Roentgenol
September 2025
Department of Radiology, NYU Langone Health, New York, NY (H.A.V.).
Since its introduction in 2018, the Vesical Imaging Reporting and Data System (VI-RADS) has emerged as a standardized and reproducible framework for multiparametric MRI assessment of bladder cancer, with validated diagnostic accuracy in distinguishing muscle-invasive from non-muscle-invasive disease. Despite growing international interest, expert consensus, and the system's inclusion in most major guidelines, real-world clinical adoption of VI-RADS remains limited. This AJR Expert Panel Narrative Review explores the key barriers that hinder the implementation of VI-RADS into everyday workflows across diverse healthcare settings, including skepticism among referring clinicians, an inability (unlike cystoscopy-based staging) to perform simultaneous tumor resection, suboptimal posttreatment performance, and variability in image quality and reader experience.
View Article and Find Full Text PDFJ Int Neuropsychol Soc
September 2025
Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA.
Objective: We evaluated performance-based differences in neuropsychological functioning in older adults (age 65+) across the dementia continuum (cognitively intact, mild cognitive impairment, and dementia) according to recent cannabis use (past six months).
Method: A sample of 540 older adults from a well-characterized observational cohort was included for analysis. Participants completed a standardized questionnaire assessing cannabis use in the six months prior to the study visit and completed a comprehensive neuropsychological assessment.