1,473 results found
    1. Neuroscience

    A low affinity cis-regulatory BMP response element restricts target gene activation to subsets of Drosophila neurons

    Anthony JE Berndt et al.
    DNA motifs tuned for low affinity binding of BMP-induced pMad/Medea transcription factors function to restrict gene activation to small subsets of the many Drosophila neurons that exhibit active BMP signaling.
    1. Structural Biology and Molecular Biophysics

    Structural basis for isoform-specific kinesin-1 recognition of Y-acidic cargo adaptors

    Stefano Pernigo et al.
    X-ray crystallography reveals how kinesin-1 recognises a novel class of cargo adaptor motifs in an isoform-specific manner.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    BRCT domains of the DNA damage checkpoint proteins TOPBP1/Rad4 display distinct specificities for phosphopeptide ligands

    Matthew Day et al.
    Structural and biochemical analyses of BRCT domain interactions defines TOPBP1/Rad4 selectivity for phosphorylated motifs, allowing identification of new interactions, and providing insights into assembly of different TOPBP1-scaffolded DNA repair complexes.
    1. Chromosomes and Gene Expression

    Dose-dependent action of the RNA binding protein FOX-1 to relay X-chromosome number and determine C. elegans sex

    Behnom Farboud et al.
    RNA binding protein FOX-1 functions as a dose-dependent X-signal element to communicate X-chromosome number and determine nematode sex by controlling alternative non-productive pre-mRNA splicing of the master sex-determination switch gene.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Tandem hnRNP A1 RNA recognition motifs act in concert to repress the splicing of survival motor neuron exon 7

    Irene Beusch et al.
    The structural model of hnRNP A1 shows that it can bind with both RRMs to RNA, which is shown to be relevant for the SMN2 exon 7 splicing mechanism in vivo.
    1. Developmental Biology

    Gli3 utilizes Hand2 to synergistically regulate tissue-specific transcriptional networks

    Kelsey H Elliott et al.
    Context-dependent optimization of Gli-binding site occupancy, in the presence of Hand2, is critical for modulating tissue-specific transcriptional output within tissues that lack an obvious Hedgehog morphogen gradient.
    1. Structural Biology and Molecular Biophysics
    2. Plant Biology

    Mechanistic insight into a peptide hormone signaling complex mediating floral organ abscission

    Julia Santiago et al.
    A plant peptide hormone controls organ shedding by acting as molecular glue that promotes the interaction between two membrane receptor kinases.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The autophagy adaptor NDP52 and the FIP200 coiled-coil allosterically activate ULK1 complex membrane recruitment

    Xiaoshan Shi et al.
    Hydrogen-deuterium exchange, electron microscopy, and vesicle reconstitution show how binding of the autophagy adaptor NDP52 to the FIP200 subunit of the ULK1 complex triggers membrane binding in autophagy.
    1. Developmental Biology

    Erythropoietin signaling regulates heme biosynthesis

    Jacky Chung et al.
    EPO/JAK2/PKA signaling cascade via AKAP10 relocalization to the outer mitochondrial membrane results in the phosphorylation of the terminal heme synthesis enzyme ferrochelatase, which contributes to heme production in red cells.
    1. Developmental Biology
    2. Evolutionary Biology

    An ancient yet flexible cis-regulatory architecture allows localized Hedgehog tuning by patched/Ptch1

    David S Lorberbaum et al.
    The seemingly simple, constitutive response of the patched/Ptch1 gene to Hedgehog signaling is in fact regulated by large batteries of context-specific Hedgehog-responsive enhancers in both fly and mouse, allowing tissue-specific tuning of the Hedgehog pathway in animal development and evolution.

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