One Chromatin, Many Structures: From Ensemble Contact Maps to Single-Cell 3D Organization

This paper introduces the Self-Returning Excluded Volume (SR-EV) model, a minimal polymer framework demonstrating that complex chromatin features like TADs and Hi-C loops emerge as statistical enrichments of heterogeneous single-cell conformations rather than as invariant 3D structures, thereby providing a unified reference for interpreting multimodal experimental data.

Carignano, M. A., Kroeger, M., Almassalha, L. + 2 more2026-03-21⚛️ biophysics

From gHBfix to NBfix: Reweighting-Driven Refinement of Hydrogen-Bond Interactions in RNA Force Fields

This paper introduces a systematic reparameterization strategy that successfully replaces external hydrogen-bond correction potentials (gHBfix19) with equivalent, native Lennard-Jones NBfix modifications in RNA force fields, thereby simplifying deployment and reducing computational overhead while maintaining the accuracy of RNA structural dynamics simulations.

Mlynsky, V., Kuehrova, P., Bussi, G. + 3 more2026-03-21⚛️ biophysics

Visible Light Optical Coherence Tomography Reveals Aging at the RetinalPigment Epithelium-Bruch's Membrane Interface

This study demonstrates that visible light Optical Coherence Tomography can non-invasively detect and quantify sub-clinical age-related thickening and structural changes at the RPE-Bruch's membrane interface in living human eyes, revealing early biomarkers that resemble the deposits found in age-related macular degeneration.

Meng, R., Kenney, R. C., Pan, M. + 5 more2026-03-20⚛️ biophysics

Molecular Mechanisms Governing Peptide Nanodisc Assembly and Stability

This study utilizes coarse-grained molecular dynamics and experimental validation to elucidate the multistep assembly pathway and structural determinants of 4F peptide nanodiscs, revealing how lipid composition and temperature govern their stability while demonstrating that their peptide-rimmed architecture effectively inhibits amyloid fibrillization comparable to MSP-based scaffolds.

Sahoo, B. R., Krishnarjuna, B., Ravula, T. + 2 more2026-03-20⚛️ biophysics

The disordered and structured regions of α-Synuclein contribute to membrane remodeling synergistically

This study demonstrates that α\alpha-Synuclein remodels cellular membranes through a synergistic mechanism where the structured N-terminal domain induces curvature via helix insertion, while the disordered C-terminal domain provides an electrostatic repulsive force that cooperatively lowers the energy barrier for membrane bending and fission.

Johnson, D. H., Liow, J. S., Kou, O. H. + 1 more2026-03-20⚛️ biophysics

Coupled Solvent and Protein Dynamics Confer Differences in Exon-19 Deletion Mutants of the Epidermal Growth Factor Receptor Kinase

This study utilizes molecular dynamics simulations, enhanced sampling, and machine learning to reveal that coupled protein and solvent dynamics distinguish EGFR Exon-19 deletion mutants into two profiles, where localized motions correlate with high ATP affinity and TKI resistance, while delocalized motions between kinase lobes reduce ATP binding and increase drug sensitivity.

Patil, K., Dhabal, D., Ashtekar, K. D. + 5 more2026-03-19⚛️ biophysics

Glassy dynamics in active epithelia emerge from an interplay of mechanochemical feedback and crowding.

This study resolves the paradox of glassy dynamics in active epithelial cells by demonstrating, through combined experiments and an active vertex model, that a mechanochemical feedback loop mediated by cell shape changes is essential to drive glass transitions and collective oscillations in dense tissues, overcoming the fluidizing effects of cell division.

Muthukrishnan, S., Dewan, P., Tejaswi, T. + 6 more2026-03-19⚛️ biophysics