Quantitative FRET imaging in moving C. elegans shows that stretch-unfolding of twitchin kinase occurs in the active muscle, whereby mechanical activity titrates the signaling pathway of this cytoskeletal kinase.
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.
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.
Latest advances in biological timing studies substantiate an emerging concept of autonomous clocks that are normally entrained by the cell cycle and/or the circadian clock to run in synchrony, but have evolved to run independently to regulate different cellular events.
Cas12a CRISPR arrays are sensitive to the GC content of their spacers, but AT-rich separator sequences successfully remove this disruptive effect and enable enhanced multiplexed gene targeting and activation.