Discover, rate, and discuss biology preprints.
363,000+ bioRxiv and medRxiv preprints, including those later published in peer-reviewed journals, across 26 biological disciplines.
Recent preprints
- BiophysicsbioRxivPreprint
How the Azadithiolate Ligand Impacts O2-Stability of Group B -Hydrogenase ToHydA
Subhasri Ghosh, Chandan Kumar Das, Shuvankar Naskar…·Thomas Happe
This study investigates how substituting the azadithiolate ligand in ToHydA affects O2-stability by preventing the formation of specific states and altering structural dynamics.
DOI 10.64898/2026.04.16.719040 - BiophysicsbioRxivPreprint
Torque-optimized body morphing enables rapid surface to underwater diving in whirligig beetles
Anonymous, Emily Palmer, Lirong Xiang…·Chris Roh
This paper investigates how whirligig beetles generate hydrodynamic torque for rapid surface-to-underwater diving by bending their abdomen.
DOI 10.64898/2026.09.29.755344 - BiophysicsbioRxivPreprint
Metabolic cost sets the shear stress profile of optimal vascular trees
Genaro Vázquez‐Victorio, Enrique Hernandez Lemus, Alejandra Cervera…·Daniel Pérez‐Calixto
This paper derives a metabolic cost-based model for optimal vascular tree shear stress profiles and shows how staged growth and fluctuating demand influence vascular topology.
DOI 10.64898/2026.09.29.755319 - BiophysicsbioRxivPreprint
Generating Structural Ensembles of Disordered Proteins with Diffusion Models
Olivier Trottier, Jack H. Gwozdecky, Sarah Rauscher
The paper introduces Zephyr, a diffusion model for generating structural ensembles of disordered proteins, achieving high accuracy and faster sampling than molecular dynamics simulations.
DOI 10.64898/2026.10.02.756250 - BiophysicsbioRxivPreprint
Integrating cell-state and enhancer constraints discriminates models of PU.1 regulation during hematopoietic differentiation
The paper tests a dynamical model of PU.1 regulation during hematopoietic differentiation and finds that additional regulatory inputs beyond autoregulation and C/EBP feedback are required to explain observed data.
DOI 10.64898/2026.10.01.756127 - BiophysicsbioRxivPreprint
Conformational dynamics of ND2 antiporter-like subunit in intact and truncated complex I
Amiel Abettan, Jonathan Lasham, Erik Endres, Vivek Sharma
This study uses molecular dynamics simulations to investigate conformational changes in the ND2 subunit of complex I, revealing a previously unobserved structural transition linked to proton pumping.
DOI 10.64898/2026.10.02.756245 - BiophysicsbioRxivPreprint
Plunge freezing tweezers with ultrasonic excitation for reducing preferred particle orientation in cryo-EM
J Hruby, Mischa Flór, Constantin R. Krüger…·Ulrich Joseph Lorenz
This paper introduces a method using ultrasonic excitation in plunge freezing tweezers to reduce preferred particle orientation in cryo-EM, achieving a complete reconstruction of hemagglutinin at 2.5 Å resolution.
DOI 10.64898/2026.09.29.755300 - BiophysicsbioRxivPreprint
A Kiss-and-Ride Mechanism for Lipid Exchange at Membrane Contact Sites
Alena Koukalová, Andrea Eisenreichová, Roman Holič…·Jana Humpolíčková
This study identifies a 'kiss-and-ride' mechanism for lipid transfer mediated by Osh6, showing that transient membrane tethering facilitates cargo extraction and transport.
DOI 10.64898/2026.09.29.755298 - BiophysicsbioRxivPreprint
Red states modulate energy localization between the antenna and trap in PSI
Marvin Asido, Halima Khatun, Anton Yu. Khmelnitskiy…·Yuval Mazor
This study investigates the functional roles of red chlorophylls in the PSI core antenna by mutating specific sites and analyzing structural and spectroscopic changes.
DOI 10.64898/2026.10.01.756128 - BiophysicsbioRxivPreprint
Gag proteolysis drives HIV-1 envelope conformational closure through the gp41 cytoplasmic tail
David J. Williamson, Cecilia Zaza, Irene Carlón-Andrés…·Sergi Padilla‐Parra
This study shows that Gag proteolysis drives HIV-1 Env conformational closure through the gp41 cytoplasmic tail, revealing a mechanism for immune evasion.
- BiophysicsbioRxivPreprint
A Nanomechanical Fingerprint of Centromeric Methylation Co-Localization in TNBC Chromosomal Instability
Tanya Agrawal, Shoubhik Chakraborty, Sejal Khanna…·Tatini Rakshit
This study maps 5mC and H3K9me3 co-localization on individual chromosomes using AFM, revealing mechanical stiffness differences between cancer and non-tumorigenic cells.
DOI 10.64898/2026.10.01.756136 - BiophysicsbioRxivPreprint
Interplay of mechanics, growth and viral infection dynamics in a spatially expanding bacterial colony
Godwin Stephenson, Amit Shimoga Nadig, Toshi Parmar…·Shashi Thutupalli
The paper studies how mechanical forces, bacterial growth, and viral infection dynamics interact during the expansion of an E. coli colony, revealing phage hitchhiking and anisotropic spread.
DOI 10.64898/2026.10.02.755697 - BiophysicsbioRxivPreprint
Structural basis of selective phospholipid recognition and local membrane deformation by CTL1
Hanxing Jiang, Adrián Martínez-Jiménez, Kazi Amirul Hossain…·Ekaitz Errasti‐Murugarren
This study identifies CTL1 as a phospholipid-binding protein that deforms membranes, revealing its structural basis and potential role in phospholipid homeostasis.
DOI 10.64898/2026.10.02.755950 - BiophysicsbioRxivPreprint
Cellular Density Homeostasis Is Governed by an Anisotropic Attractor and Predictive Feedback Control
Víctor Alcolea-Rodriguez, Abhya Gupta, Michael Ka Ho Lee…·Ishan Barman
The paper identifies an anisotropic attractor and predictive feedback control mechanism governing cellular density homeostasis using single-cell mass-volume measurements.
DOI 10.64898/2026.09.28.755031 - BiophysicsbioRxivPreprint
Simulating Bead-Tethered Biomolecules: Force-Probe Coupled Steered Molecular Dynamics (fp-SMD) in Optical Tweezers Force Spectroscopy
This paper introduces fp-SMD to simulate single-molecule force spectroscopy data by aligning simulation timescales with experiments, revealing force-induced pathway switching in a host-guest complex.
DOI 10.64898/2026.09.27.754810 - BiophysicsbioRxivPreprint
e^-2 Threshold for Bistability in Non-equilibrium Sorting of Biomolecular Condensates
Weifeng Chen, Shiyuan Pei, Guozhi Yu
The paper derives a non-equilibrium model for biomolecular condensate sorting, identifying a critical Damkohler number threshold for bistability and quality control.
DOI 10.64898/2026.09.28.754880 - BiophysicsbioRxivPreprint
Distinct Aβ40 and Aβ42 co-assembly pathways with free lipids: Experiment-driven MD study
Rachit Pandey, Tarek Olabi, Myungwoon Lee, Brigita Urbanc
This study uses experimental and molecular dynamics methods to show that Aβ40 and Aβ42 have distinct co-assembly pathways with lipids, with lipid effects varying by isoform and lipid composition.
DOI 10.64898/2026.09.28.755027 - BiophysicsbioRxivPreprint
Measuring protein conformational changes with genetically encoded bipyridylalanine and transition-metal ion FRET
Charlie DeFreest, Emerson M. Carmona, Sharona E. Gordon, William N. Zagotta
This paper introduces a method to adjust tmFRET distance sensitivity using different metal ions at a single bpyA-labeled protein site, enabling conformational change measurements.
DOI 10.64898/2026.10.01.756074 - BiophysicsbioRxivPreprint
Curvature sensing and generation by diverse membrane-tethered polymers can be explained by a unifying physical model
Ke Xiao, Feng Yuan, Wade F. Zeno…·Padmini Rangamani
This study shows that ionic strength and ionization affect membrane-tethered polymer conformation, which influences membrane curvature generation through changes in brush thickness and grafting density.
DOI 10.64898/2026.09.28.754990