Topoisomerase IV and the ter-binding protein MatP competitively bind the hinge domain of the Escherichia coli Structural Maintenance of Chromosomes complex, MukB, leading to spatiotemporal regulation of MukBEF-topoisomerase IV activity.
The RNA-mediated higher order assembly of TDP-43, a protein associated with neurodegenerative diseases, preserves its solubility by reducing the risk of multivalent interactions between low complexity domains.
Quantitative time-resolved crosslinking mass spectrometry is developed to monitor protein interactions and dynamics inside molecular condensates and used to identify misfolding of the RNA-binding domain of FUS as a key driver of condensate-aging.
A pentameric channel-receptor was studied by combining allosteric mutations, electrophysiology, fluorescent reporters and normal mode analysis, to dissect the long-range allosteric couplings specifically involved in its pre-activation and activation.
A new genetically engineered mouse strain is described in which miRNA activity can be acutely and reversibly inhibited, showing that in a subset of adult tissues miRNA activity is dispensable under homeostatic conditions but becomes essential during tissue regeneration.
Genetic integration of human protein abundance variation and COVID-19 susceptibility identifies proteins with potential causal roles in antiviral responses, coagulation, cytokine activation, and direct receptor interactions with SARS-CoV-2.
Defective mitochondrial protein import results in protein aggregation and a specific chaperone response in the cytosol, causatively linking mitochondrial function and cellular protein homeostasis disturbances observed in neurodegeneration.