4,421 results found
    1. Cell Biology
    2. Physics of Living Systems

    Probe-free optical chromatin deformation and measurement of differential mechanical properties in the nucleus

    Benjamin Seelbinder, Susan Wagner ... Moritz Kreysing
    Localized temperature gradients used as a novel method of active micro-theology that is non-invasive and probe-free, to investigate material responses of cell departments such as the different compartments of a nucleus displaying distinct material properties.
    1. Neuroscience

    Metal microdrive and head cap system for silicon probe recovery in freely moving rodent

    Mihály Vöröslakos, Peter C Petersen ... György Buzsáki
    A reusable system of 3D printed stainless steel microdrive and plastic head cap allows stable recording of electrophysiological data in mice and rats and easy recovery of silicon probes.
    1. Computational and Systems Biology

    Building accurate sequence-to-affinity models from high-throughput in vitro protein-DNA binding data using FeatureREDUCE

    Todd R Riley, Allan Lazarovici ... Harmen J Bussemaker
    A biophysically principled algorithm can build quantitative models of protein-DNA binding specificity of unprecedented accuracy from a leading type of high-throughput in vitro binding data.
    1. Structural Biology and Molecular Biophysics

    Microtubule assembly governed by tubulin allosteric gain in flexibility and lattice induced fit

    Maxim Igaev, Helmut Grubmüller
    A new combined mechanism explains how GTP binding by tubulin is linked to its dynamics and energetics in solution and why GTP-induced flexibility, and not the tubulin conformation as such, drives microtubule assembly.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A novel N-terminal extension in mitochondrial TRAP1 serves as a thermal regulator of chaperone activity

    James R Partridge, Laura A Lavery ... David A Agard
    Cytosolic and organellar Hsp90s from higher eukaryotes have evolved a variable, and environmentally responsive N-terminal extension to regulate their activity.
    1. Biochemistry and Chemical Biology

    Stepwise nucleosome translocation by RSC remodeling complexes

    Bryan T Harada, William L Hwang ... Xiaowei Zhuang
    Single molecule FRET reveals that the SWI/SNF-family remodeling enzyme RSC translocates nucleosomes along the DNA in steps of ~1-2 base pairs in size.
    1. Cell Biology

    A novel biosensor to study cAMP dynamics in cilia and flagella

    Shatanik Mukherjee, Vera Jansen ... Dagmar Wachten
    A new FRET-based cAMP biosensor with nanomolar sensitivity makes it possible to measure cAMP dynamics in miniscule subcellular compartments like cilia and flagella.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    An improved fluorescent noncanonical amino acid for measuring conformational distributions using time-resolved transition metal ion FRET

    William N Zagotta, Brandon S Sim ... Sharona E Gordon
    Time-resolved transition metal ion fluorescence resonance energy transfer using a fluorescent, noncanonical amino acid donor and metal ion acceptor measures distances and distance distributions in proteins, allowing the equilibrium distributions among conformational states to be accurately determined.
    1. Neuroscience

    Preconditioned cues have no value

    Melissa J Sharpe, Hannah M Batchelor, Geoffrey Schoenbaum
    Preconditioned cues provide information about an associative model but do not, by default, trigger representations of value, either model-based or model-free.
    1. Biochemistry and Chemical Biology

    Semisynthetic biosensors for mapping cellular concentrations of nicotinamide adenine dinucleotides

    Olivier Sallin, Luc Reymond ... Kai Johnsson
    A family of fluorescent biosensors for nicotinamide adenine dinucleotides allows quantification of these cofactors in live cells with spatio-temporal resolution.

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