16,940 results found
    1. Biochemistry and Chemical Biology

    The orphan ligand, activin C, signals through activin receptor-like kinase 7

    Erich J Goebel, Luisina Ongaro ... Thomas B Thompson
    Activin class member, activin C, is a canonical TGFβ family member that signals through the type I receptor, action receptor-like kinase 7 and is resistant to follistatin antagonism.
    1. Neuroscience

    Nova proteins direct synaptic integration of somatostatin interneurons through activity-dependent alternative splicing

    Leena Ali Ibrahim, Brie Wamsley ... Gordon Fishell
    RNA sequencing and conditional Nova mutants reveal that Nova protein function is necessary for activity-dependent alternative splicing of synaptic genes within somatostatin cortical interneurons and regulates its afferent and efferent connectivity.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Molecular basis of interactions between CaMKII and α-actinin-2 that underlie dendritic spine enlargement

    Ashton J Curtis, Jian Zhu ... Matthew G Gold
    CaMKII and the actin-crosslinking protein α-actinin-2 associate within minutes of the induction of long-term potentiation and disrupting this interaction prevents formation of enlarged dendritic spines.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Activin A marks a novel progenitor cell population during fracture healing and reveals a therapeutic strategy

    Lutian Yao, Jiawei Lu ... Maurizio Pacifici
    Activation of Activin A-expressing progenitor cells emerges as a pivotal mechanism in bone fracture healing, shedding light on a potential therapeutic avenue to augment bone repair processes.
    1. Chromosomes and Gene Expression

    Distinct modes of SMAD2 chromatin binding and remodeling shape the transcriptional response to NODAL/Activin signaling

    Davide M Coda, Tessa Gaarenstroom ... Caroline S Hill
    NODAL/Activin-induced SMAD2 binding directly drives remodeling of both open and closed chromatin and does not directly correlate with temporal patterns of gene expression upon prolonged signaling.
    1. Cell Biology
    2. Physics of Living Systems

    Leading edge maintenance in migrating cells is an emergent property of branched actin network growth

    Rikki M Garner, Julie A Theriot
    Computational simulations of actin network growth at the cell leading edge, combined with careful high-speed video microscopy measurements of leading edge shape fluctuations, suggest that Arp2/3 branching of the actin network occurs at an optimal angle to minimize fluctuations.
    1. Computational and Systems Biology
    2. Neuroscience

    Dopamine role in learning and action inference

    Rafal Bogacz
    A mathematical model describes the function of dopaminergic neurons in both learning and action planning.
    1. Neuroscience

    Neural activity in a hippocampus-like region of the teleost pallium is associated with active sensing and navigation

    Haleh Fotowat, Candice Lee ... Len Maler
    Sparse firing in a hippocampus-like structure of the teleost telencephalon is linked to spatial navigation and active sensing.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures reveal specialization at the myosin VI-actin interface and a mechanism of force sensitivity

    Pinar S Gurel, Laura Y Kim ... Gregory M Alushin
    Cryo-EM structures of actomyosin VI in multiple nucleotide states reveal a unique actin-myosin interface and a mechanism of force-sensitivity; furthermore, myosin VI remodels F-actin, suggesting a role for actin structural plasticity during force generation.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanism for direct actin force-sensing by α-catenin

    Lin Mei, Santiago Espinosa de los Reyes ... Gregory M Alushin
    Biophysical and structural studies reveal how low piconewton forces across actin enhance binding by the critical cell-cell adhesion protein α-catenin versus its force insensitive homolog vinculin.

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