7,918 results found
    1. Structural Biology and Molecular Biophysics

    Mechanisms of ribosome stalling by SecM at multiple elongation steps

    Jun Zhang, Xijiang Pan ... Sen-Fang Sui
    Nascent regulatory peptides tune the translation rate through a continuous, dynamic reshaping of the functional center of the ribosome.
    1. Developmental Biology
    2. Neuroscience

    Neuroblast-specific open chromatin allows the temporal transcription factor, Hunchback, to bind neuroblast-specific loci

    Sonia Q Sen, Sachin Chanchani ... Chris Q Doe
    Spatial factors generate neuroblast-specific open chromatin, thereby biasing the subsequent binding of transcription factors to produce neuroblast-specific neurons.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Two-way communication between SecY and SecA suggests a Brownian ratchet mechanism for protein translocation

    William John Allen, Robin Adam Corey ... Ian Collinson
    Evidence is presented that supports a completely new, diffusion-driven mechanism for transporting proteins across membranes in bacteria.
    1. Structural Biology and Molecular Biophysics

    HDX-MS reveals nucleotide-dependent, anti-correlated opening and closure of SecA and SecY channels of the bacterial translocon

    Zainab Ahdash, Euan Pyle ... Argyris Politis
    Hydrogen-deuterium exchange mass spectrometry reveals nucleotide-driven conformational regulation of Sec protein-channel to help impose directionality for protein transport through the Sec complex.
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    1. Biochemistry and Chemical Biology

    Efficient analysis of mammalian polysomes in cells and tissues using Ribo Mega-SEC

    Harunori Yoshikawa, Mark Larance ... Angus I Lamond
    Translationally active polysomes from mammalian cells/tissues are successfully separated with rapidity, high efficiency and exceptional reproducibility by a SEC-based approach, an accessible alternative to the conventional sucrose density gradient analysis.
    1. Cancer Biology

    Molecular classification and tumor microenvironment characteristics in pheochromocytomas

    Sen Qin, Yawei Xu ... Zheng Zhang
    ScRNA-seq of diverse pheochromocytoma patients reveals distinct microenvironment characteristics and supports an informative molecular classification system.
    1. Neuroscience

    Coordinated neuronal ensembles in primary auditory cortical columns

    Jermyn Z See, Craig A Atencio ... Christoph E Schreiner
    Auditory cortical columns contain small subsets of neurons with highly synchronous activity (cNEs) that create robust sequences of coordinated activity suitable for enhanced information processing and signal transmission beyond the capability of individual neurons.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    ATP-induced asymmetric pre-protein folding as a driver of protein translocation through the Sec machinery

    Robin A Corey, Zainab Ahdash ... Ian Collinson
    How the process of protein folding may be controlled by the Sec machinery to assist protein transport across membranes.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The C-terminal tail of the bacterial translocation ATPase SecA modulates its activity

    Mohammed Jamshad, Timothy J Knowles ... Damon Huber
    The interaction of SecA with its substrate proteins is regulated by its evolutionarily conserved C-terminal tail, which autoinhibits SecA unless SecA binds to the ribosome.
    1. Stem Cells and Regenerative Medicine

    Scleraxis-lineage cells are required for tendon homeostasis and their depletion induces an accelerated extracellular matrix aging phenotype

    Antonion Korcari, Anne EC Nichols ... Alayna E Loiselle
    Age-related tendon degeneration is initiated by loss of tenocytes associated with synthesis of high-turnover rate proteoglycans and glycoproteins.

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