Analysis of embryonic mouse diaphragm reveals muscle and nerve left–right asymmetries set by a Nodal-dependent genetic cascade, which imprints different molecular signatures to left and right motoneurons that shape their innervation pattern.
Multimegadalton intraflagellar transport (IFT) trains assemble by sequential recruitment of IFT subcomplexes from the cell body to the ciliary basal bodies and tubulin, the main IFT cargo, is loaded briefly before trains depart.
Down regulation of the gain from the vestibular sensory sources prior to the initiation of movement is a motor control solution to overcome the reflex-stabilizing mechanisms to enable motion from a postural orientation.
The specification of tegumental progenitor cells in Schistosoma mansoni relies on a pair of flatworm-specific transcription factors that are related to genes regulating epidermal specification in free-living flatworms.
Proteolysis of lipidated N-terminal peptides that tether Hedgehog morphogens to the surface of source cells is absolutely required for their coupled release and bioactivation in vivo in Drosophila melanogaster.
Single-cell FRET measurements reveal large temporal activity fluctuations within this signaling pathway in Escherichia coli, caused by stochasticity of receptor methylation combined with allosteric interactions and slow rearrangements within receptor clusters.