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Quantitative experiments and analysis determine the limit of excitation power of 1300-nm three-photon microscopy, and the imaging depth where three-photon outperforms two-photon for calcium imaging in the mouse brain.

Crystallography together with electron-resonance spectroscopy, molecular-dynamics simulations, and transport measurements reveal the molecular details of protein conformational change, and how this change contributes to function in a CLC-type chloride/proton exchanger.

Cryo-EM reveals atomic details of two membrane half-channels for translocation of protons that drive rotary catalysis in ATP synthase.

A synthetic riboswitch binding one isoform of a photoreversible ligand provides a photoregulatory tool for bacterial translation initiation.

The dynamic structure of respiratory complex I from mesophilic bacterium is revealed and demonstrates existence of uncoupled conformations in the bacterial complex.

Wing transparency in mimetic butterflies and moths is achieved by an unexpected diversity of structural features, and both structures and light transmission properties of wings are under selection for convergence.

STOMP is a technique that can determine the proteomic composition of any feature that is identifiable by laser scanning microscopy and is at least one cubic micron in size.

To improve the reliability of transmitting small single-photon voltage responses, rod photoreceptor cells release synaptic vesicles in regularly timed multivesicular events that are exquisitely sensitive to small voltage changes.

A viral heliorhodopsin from Emiliania huxleyi virus 202 (V2HeR3) is a light-activated proton transporter, which has the potential to depolarize the host cells by light, possibly to overcome the host defense mechanisms or to prevent superinfection.

The X-ray structure of the PaNhaP provides a unique view of substrate-ion binding and release in electroneutral sodium/proton antiporters.