362 results found
    1. Structural Biology and Molecular Biophysics

    The cryo-EM structure of the human uromodulin filament core reveals a unique assembly mechanism

    Jessica J Stanisich et al.
    Cryo-EM reveals that an unexpected domain separation in the zona pellucida module of uromodulin is required for its assembly to filamentous homopolymers that promote pathogen clearance in urinary tract infections.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Shadow enhancers can suppress input transcription factor noise through distinct regulatory logic

    Rachel Waymack et al.
    Proper development depends on establishing precise gene expression patterns in spite of the inherent noise in transcription, shadow enhancers buffer this noise by binding distinct input transcription factors.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Positively selected modifications in the pore of TbAQP2 allow pentamidine to enter Trypanosoma brucei

    Ali H Alghamdi et al.
    Study of TbAQP2 adaptations and substrate interactions shows how this aquaglyceroporin enables cellular entry of large antimicrobial agents in Trypanosoma brucei.
    1. Chromosomes and Gene Expression

    CMG helicase disassembly is controlled by replication fork DNA, replisome components and a ubiquitin threshold

    Tom D Deegan et al.
    Ubiquitylation of the CMG helicase is inhibited throughout the initiation and elongation phases of chromosome replication by the DNA structure of a replication fork.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Transient intracellular acidification regulates the core transcriptional heat shock response

    Catherine G Triandafillou et al.
    When translation stops, cells require intracellular acidification to turn on the conserved heat shock response during stress, and stress-triggered acidification (common in eukaryotes) is adaptive, promoting cell and population fitness.
    1. Physics of Living Systems

    A mechanism for hunchback promoters to readout morphogenetic positional information in less than a minute

    Jonathan Desponds et al.
    Maternal positional information in the fly embryo can be read rapidly in spite of the gene-expression bottleneck and general examples of regulatory architectures that combine speed and accuracy are provided.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    A mechanism for the extension and unfolding of parallel telomeric G-quadruplexes by human telomerase at single-molecule resolution

    Bishnu P Paudel et al.
    Human telomerase unfolds and extends parallel G-quadruplexes using a unique mechanism involving its RNA template.
    1. Computational and Systems Biology
    2. Neuroscience

    A unified computational model for cortical post-synaptic plasticity

    Tuomo Mäki-Marttunen et al.
    Biochemically detailed modelling of pathways leading to post-synaptic plasticity reveals the dependence of neocortical LTP/LTD on the availability of different proteins and stimulation patterns.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    An analog to digital converter controls bistable transfer competence development of a widespread bacterial integrative and conjugative element

    Nicolas Carraro et al.
    A new multistep hierarchical cascade controls activation of an integrative and conjugative element in a small subpopulation of cells in its bacterial host, yielding proficient DNA transferring cells.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Antagonistic control of DDK binding to licensed replication origins by Mcm2 and Rad53

    Syafiq Abd Wahab, Dirk Remus
    The mechanism of Dbf4-dependent kinase (DDK) recruitment to replication origins and its regulation by the checkpoint have been identified.

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