Robert Kiewisz, Gunar Fabig ... Thomas Müller-Reichert
Comprehensive 3D electron tomography reconstructions of metaphase spindles in human tissue culture cells reveal that kinetochore-fibers broaden as they extend polewards, forming semi-direct connections to the pole, where they preferentially interact with the spindle network.
Valerie A Larson, Yevgeniya Mironova ... Dwight E Bergles
Oligodendrocytes in white matter use Kir4.1 inwardly rectifying potassium channels to prevent extracellular potassium accumulation, enabling neurons to sustain repetitive firing and limiting the initiation of seizures.
Transient Ca elevations of cytoplasmic calcium in cardiac myocytes profoundly activate cardiac Na/K pump activity in parallel with physical-chemical changes of the sarcolemma but without involvement of conventional signaling mechanisms.
A combined systematic alanine scanning and molecular modelling approach reveals the molecular basis for an allosteric inhibition mechanism of K+-flux gating in K2P channels.
Associations can be mapped using k-mer frequencies in sequencing reads without prior sequencing of a reference genome enabling detection of associations to variants of multiple types and outside of the reference.
An auxiliary subunit alters the effect of a family of small-molecule openers on a voltage-gated potassium channel by inducing structural re-arrangements that promote protonation of the drug molecule.
Live imaging and physical perturbations of spindles with unfocused poles reveal that mammalian spindle length emerges locally from kinetochore-fibers, but that global cues from focused spindle poles are needed to coordinate k-fibers across space and time and accurately segregate chromosomes.
Christopher P Mancuso, Hyunseok Lee ... Ahmad S Khalil
Laboratory experiments using a microbial community and mathematical modeling reveal how environmental disturbances can predictably alter the diversity and composition of an ecosystem.
Mathematical and experimental analyses suggest that despite their complex architectures, multiple metazoan signaling pathways act in physiological contexts as linear signal transmitters.