Kavli Affiliate: Lindsay Baker | Summary:A protein’s structure in the gas phase underpins the interpretation of native mass spectrometry. Yet how fold and conformation respond to dehydration has never been resolved at the residue level, due to the unavailability of a method to image gas-phase proteins at near-atomic resolution. Here, we determine near-atomic-resolution cryoEM structures […]

Kavli Affiliate: Carol Robinson | Summary:Electrospray ion beam deposition (ESIBD) is the intact, chemically selective deposition of molecular ions on surfaces in vacuum. Here, we present a general method and dedicated instrumentation for ESIBD-based cryoEM sample preparation of soluble proteins. Precise control over deposition energy, sample environment, and reproducible growth of thin, homogeneous, vitreous ice […]

Kavli Affiliate: Lindsay Baker | Summary:Soft-landing electrospray ion beam deposition (ESIBD), i.e. the chemically selective, intact deposition of large and complex molecules on surfaces in vacuum, is a well-established sample preparation method for scanning probe microscopy (SPM), where it facilitates the high-resolution imaging of large and complex molecules. Inherited from mass spectrometry, the advantageous properties […]

Kavli Affiliate: Andrew Baldwin | Summary:Biomolecular condensates composed of intrinsically disordered proteins (IDPs) are vital for proper cellular function, and their dysfunction is associated with diseases including neurodegeneration and cancer. Despite their biological importance, the precise physical mechanisms underlying condensate (dys)function are unclear, in part owing to the difficulties in understanding how biomolecular sequence patterns […]

Kavli Affiliate: Molly Stevens | Summary:Raman spectroscopy is widely used across scientific domains to characterize the chemical composition of samples in a non-destructive, label-free manner. Many applications entail the unmixing of signals from mixtures of molecular species to identify the individual components present and their proportions, yet conventional methods for chemometrics often struggle with complex […]

Kavli Affiliate: Molly Stevens | Summary:With the rise in engineered biomolecular devices, there is an increased need for tailor-made biological sequences. Often, many similar biological sequences need to be made for a specific application meaning numerous, sometimes prohibitively expensive, lab experiments are necessary for their optimization. This paper presents a transfer learning design of experiments […]

Kavli Affiliate: Molly Stevens | Summary:Raman spectroscopy is a non-destructive and label-free chemical analysis technique, which plays a key role in the analysis and discovery cycle of various branches of science. Nonetheless, progress in Raman spectroscopic analysis is still impeded by the lack of software, methodological and data standardisation, and the ensuing fragmentation and lack […]

Kavli Affiliate: Achillefs Kapanidis | Summary:PIFE was first used as an acronym for protein-induced fluorescence enhancement, which refers to the increase in fluorescence observed upon the interaction of a fluorophore, such as a cyanine, with a protein. This fluorescence enhancement is due to changes in the rate of cis/trans photoisomerisation. It is clear now that […]

Kavli Affiliate: Andrew Baldwin | Summary:We consider the problem of efficiently computing the Uhlmann fidelity in the case when explicit density matrix descriptions are available. We derive an alternative formula which is simpler to evaluate numerically, saving a factor of 10 in time for large matrices. | Search Query: arXiv Query: search_query=au:”Baldwin Andrew J.”&id_list=&start=0&max_results=10Read More

Kavli Affiliate: Molly Stevens | Summary:Unsupervised estimation of the dimensionality of hyperspectral microspectroscopy datasets containing pure and mixed spectral features, and extraction of their representative endmember spectra, remains a challenge in biochemical data mining. We report a new versatile algorithm building on semi-nonnegativity constrained self-modeling curve resolution and information entropy, to estimate the quantity of […]