The structures of photosystem II, with the water-oxidizing Mn4CaO5-cluster fully removed and in an intermediate assembly state, show that photoassembly is facilitated by perfectly pre-arranged protein ligands of the five metal ions.
Two-photon in vivo calcium imaging reveals short time-scale, synchronous and sparse population activity in dentate gyrus that replays place-related information, and is important for formation of dentate-dependent spatial memory.
Dark exposure lowers the MMP9 activation threshold, and subsequent light stimulation to an amblyopic eye is sufficient to induce proteolysis at thalamo-cortical synapses in deprived mouse visual cortex.
Single-molecule measurement of conformational dynamics using a genetically encoded fluorescent probe suggests that the selectivity filter region of TRPV1 channels undergoes dynamic motion during agonist activation.
Targeted optogenetic activation of small ensembles of neurons is sufficient to trigger a behavioral report while recruiting matched network suppression, suggesting exquisite sensitivity despite network mechanisms that maintain sparseness.
The essential role of presynaptic NMDA receptors for granule cell GABAergic output elucidates the function of reciprocal spines in recurrent and possibly lateral inhibition of mitral cells during olfactory processsing.