4,514 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Molecular mechanism for Rabex-5 GEF activation by Rabaptin-5

    Zhe Zhang et al.
    The GEF activity of Rabex-5 is weakly autoinhibited by its CC domain and activated by Rabaptin-5 and the two proteins work concertedly to activate Rab5.
    1. Developmental Biology
    2. Neuroscience

    TIAM-1/GEF can shape somatosensory dendrites independently of its GEF activity by regulating F-actin localization

    Leo TH Tang et al.
    The DMA-1/LRR-TM cell surface receptor signals through partially redundant pathways to cell-autonomously pattern dendrites, including by directly forming a complex with both the TIAM-1/GEF and ACT-4/Actin.
    1. Structural Biology and Molecular Biophysics

    Auto-regulation of Rab5 GEF activity in Rabex5 by allosteric structural changes, catalytic core dynamics and ubiquitin binding

    Janelle Lauer et al.
    Understanding the complex auto-regulatory mechanisms for guanine nucleotide exchange factors is critically important for fully appreciating the layers of control for small GTPases.
    1. Developmental Biology

    Diversification of heart progenitor cells by EGF signaling and differential modulation of ETS protein activity

    Benjamin Schwarz et al.
    A novel regulatory model for the diversification of cardiac cell subpopulations in Drosophila is established by linking epidermal growth factor signaling with differential activities of key transcription factors.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Multiplex image-based autophagy RNAi screening identifies SMCR8 as ULK1 kinase activity and gene expression regulator

    Jennifer Jung et al.
    An image-based multiplex autophagosome RNAi screen targeting all Rab GTPases as well as their GAPs and GEFs identifies the Rab GEF SMCR8 as multifaceted autophagy modulator, which regulates kinase activity and gene expression of ULK1.
    1. Developmental Biology
    2. Neuroscience

    The adhesion-GPCR BAI1 shapes dendritic arbors via Bcr-mediated RhoA activation causing late growth arrest

    Joseph G Duman et al.
    The adhesion-GPCR BAI1 shapes dendritic arbors in the hippocampus by associating with Bcr late in development and stimulating its RhoA-GEF activity, resulting in dendritic growth arrest.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    The Sec7 N-terminal regulatory domains facilitate membrane-proximal activation of the Arf1 GTPase

    Brian C Richardson et al.
    A new structure reveals two Arf-GEF regulatory domains form a single structural unit that stimulates Arf-GEF activity.
    1. Neuroscience

    Locomotion: Building behaviors, one layer at a time

    Claire Wyart, Vatsala Thirumalai
    New interneurons are added in the hindbrain to support more complex movements as young zebrafish get older.
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  1. Meta-Research: How significant are the public dimensions of faculty work in review, promotion and tenure documents?

    Juan P Alperin et al.
    An analysis of review, promotion and tenure documents from 129 US and Canadian universities suggests institutions could better fulfill their public missions by changing how they incentivize the public dimensions of faculty work.

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