5,339 results found
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    Phasic oxygen dynamics confounds fast choline-sensitive biosensor signals in the brain of behaving rodents

    Ricardo M Santos, Anton Sirota
    Fast fluctuations of oxygen, linked to behavioral and neural dynamics in vivo, cause phasic transients is amperometry-measured cholinergic signals via the mechanism of non-steady-state enzyme kinetics in the choline-oxidase-based biosensor.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    CryoEM and computer simulations reveal a novel kinase conformational switch in bacterial chemotaxis signaling

    C Keith Cassidy et al.
    An atomic model of the bacterial chemosensory array obtained through the synthesis of cryo-electron tomography and large-scale molecular-dynamics simulations reveals a new kinase conformation during signaling events.
    1. Neuroscience

    Neural dynamics at successive stages of the ventral visual stream are consistent with hierarchical error signals

    Elias B Issa et al.
    Neural spiking responses in the visual cortex carry both an explicit representation of the presence of a face and a late-arriving, explicit encoding of errors in face estimation.
    1. Neuroscience

    Transformation of spatiotemporal dynamics in the macaque vestibular system from otolith afferents to cortex

    Jean Laurens et al.
    The spatial and dynamic properties of self-motion signals are acquired at the first stage of otolith signal transformation, which is in the brainstem and cerebellum, and conserved across brainstem, cerebellar and cortical areas.
    1. Computational and Systems Biology
    2. Neuroscience

    Multivariate stochastic volatility modeling of neural data

    Tung D Phan et al.
    Multivariate stochastic volatility models provide insights into understanding the dynamics and connectivity of neural signals during cognitive tasks.
    1. Cell Biology

    Cross-compartment signal propagation in the mitotic exit network

    Xiaoxue Zhou et al.
    The mitotic exit network signals from spindle pole bodies to the nucleolus through the dynamic localization of its terminal kinase complex Dbf2-Mob1.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Signaling diversity enabled by Rap1-regulated plasma membrane ERK with distinct temporal dynamics

    Jeremiah Keyes et al.
    An individual extracellular signal regulates multiple cellular actions through differences in the temporal dynamics of spatially distinct populations of the central signaling enzyme, extracellular-signal regulated kinase.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Quantifying β-catenin subcellular dynamics and cyclin D1 mRNA transcription during Wnt signaling in single living cells

    Pinhas Kafri et al.
    Imaging of single cells within a cell population shows the correlation between subcellular accumulation of β-catenin and the transcriptional activation of a target gene.
    1. Developmental Biology

    Sox17 and β-catenin co-occupy Wnt-responsive enhancers to govern the endoderm gene regulatory network

    Shreyasi Mukherjee et al.
    Genomic analysis of Xenopus gastrula reveal that the transcription factor Sox17 interacts with the Wnt signaling effector ß-catenin on enhancers to regulate the transcriptional program underlying endoderm germ layer formation.
    1. Neuroscience

    Differential temporal dynamics during visual imagery and perception

    Nadine Dijkstra et al.
    In contrast to perception, during visual imagery, there are no clear time-locked processing stages and imagery specifically overlaps with perceptual processing around 160 ms after stimulus onset and from 300 ms onwards.

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