Search Results - "Meisburger, Steve P"
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Determining the Locations of Ions and Water around DNA from X-Ray Scattering Measurements
Published in Biophysical journal (16-06-2015)“…Nucleic acids carry a negative charge, attracting salt ions and water. Interactions with these components of the solvent drive DNA to condense, RNA to fold,…”
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Diffuse X-ray scattering from correlated motions in a protein crystal
Published in Nature communications (09-03-2020)“…Protein dynamics are integral to biological function, yet few techniques are sensitive to collective atomic motions. A long-standing goal of X-ray…”
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Robust total X-ray scattering workflow to study correlated motion of proteins in crystals
Published in Nature communications (03-03-2023)“…The breathing motions of proteins are thought to play a critical role in function. However, current techniques to study key collective motions are limited to…”
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X‑ray Scattering Studies of Protein Structural Dynamics
Published in Chemical reviews (28-06-2017)“…X-ray scattering is uniquely suited to the study of disordered systems and thus has the potential to provide insight into dynamic processes where diffraction…”
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Ionic strength-dependent persistence lengths of single-stranded RNA and DNA
Published in Proceedings of the National Academy of Sciences - PNAS (17-01-2012)“…Dynamic RNA molecules carry out essential processes in the cell including translation and splicing. Base-pair interactions stabilize RNA into relatively rigid…”
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Asymmetric unwrapping of nucleosomal DNA propagates asymmetric opening and dissociation of the histone core
Published in Proceedings of the National Academy of Sciences - PNAS (10-01-2017)“…The nucleosome core particle (NCP) is the basic structural unit for genome packaging in eukaryotic cells and consists of DNA wound around a core of eight…”
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Domain Movements upon Activation of Phenylalanine Hydroxylase Characterized by Crystallography and Chromatography-Coupled Small-Angle X‑ray Scattering
Published in Journal of the American Chemical Society (25-05-2016)“…Mammalian phenylalanine hydroxylase (PheH) is an allosteric enzyme that catalyzes the first step in the catabolism of the amino acid phenylalanine. Following…”
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RNA and Its Ionic Cloud: Solution Scattering Experiments and Atomically Detailed Simulations
Published in Biophysical journal (22-02-2012)“…RNA molecules play critical roles in many cellular processes. Traditionally viewed as genetic messengers, RNA molecules were recently discovered to have…”
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REGALS : a general method to deconvolve X-ray scattering data from evolving mixtures
Published in IUCrJ (01-03-2021)“…Mixtures of biological macromolecules are inherently difficult to study using structural methods, as increasing complexity presents new challenges for data…”
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Breaking the Radiation Damage Limit with Cryo-SAXS
Published in Biophysical journal (08-01-2013)“…Small angle x-ray scattering (SAXS) is a versatile and widely used technique for obtaining low-resolution structures of macromolecules and complexes. SAXS…”
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Small-Angle X-ray Scattering and Single-Molecule FRET Spectroscopy Produce Highly Divergent Views of the Low-Denaturant Unfolded State
Published in Journal of molecular biology (04-05-2012)“…The results of more than a dozen single-molecule Förster resonance energy transfer (smFRET) experiments suggest that chemically unfolded polypeptides…”
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Correlated Motions in Structural Biology
Published in Biochemistry (Easton) (03-08-2021)“…Correlated motions in proteins arising from the collective movements of residues have long been proposed to be fundamentally important to key properties of…”
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Scaling and merging macromolecular diffuse scattering with mdx2
Published in Acta crystallographica. Section D, Biological crystallography. (01-05-2024)“…Diffuse scattering is a promising method to gain additional insight into protein dynamics from macromolecular crystallography experiments. Bragg intensities…”
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14
Visualizing single-stranded nucleic acids in solution
Published in Nucleic acids research (19-05-2017)“…Single-stranded nucleic acids (ssNAs) are ubiquitous in many key cellular functions. Their flexibility limits both the number of high-resolution structures…”
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The impact of base stacking on the conformations and electrostatics of single-stranded DNA
Published in Nucleic acids research (20-04-2017)“…Single-stranded DNA (ssDNA) is notable for its interactions with ssDNA binding proteins (SSBs) during fundamentally important biological processes including…”
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Correlated motions in enzymes
Published in The FASEB journal (01-05-2022)“…Correlated motions in proteins arising from the collective movements of residues have long been proposed to be fundamentally important to key properties of…”
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Correlated Motions from Crystallography beyond Diffraction
Published in Accounts of chemical research (21-03-2017)“…Over the past century, X-ray crystallography has been defined by a pursuit for perfection and high resolution. The next Holy Grail of crystallography is to…”
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Processing macromolecular diffuse scattering data
Published in Methods in enzymology (2023)“…Diffuse scattering is a powerful technique to study disorder and dynamics of macromolecules at atomic resolution. Although diffuse scattering is always present…”
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The phenylketonuria-associated substitution R68S converts phenylalanine hydroxylase to a constitutively active enzyme but reduces its stability
Published in The Journal of biological chemistry (22-03-2019)“…The naturally occurring R68S substitution of phenylalanine hydroxylase (PheH) causes phenylketonuria (PKU). However, the molecular basis for how the R68S…”
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Revealing transient structures of nucleosomes as DNA unwinds
Published in Nucleic acids research (29-07-2014)“…The modulation of DNA accessibility by nucleosomes is a fundamental mechanism of gene regulation in eukaryotes. The nucleosome core particle (NCP) consists of…”
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