Search Results - "Holton, James"
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Radiation damage and dose limits in serial synchrotron crystallography at cryo- and room temperatures
Published in Proceedings of the National Academy of Sciences - PNAS (25-02-2020)“…Radiation damage limits the accuracy of macromolecular structures in X-ray crystallography. Cryogenic (cryo-) cooling reduces the global radiation damage rate…”
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A beginner's guide to radiation damage
Published in Journal of synchrotron radiation (01-03-2009)“…Many advances in the understanding of radiation damage to protein crystals, particularly at cryogenic temperatures, have been made in recent years, but with…”
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Large language models generate functional protein sequences across diverse families
Published in Nature biotechnology (01-08-2023)“…Deep-learning language models have shown promise in various biotechnological applications, including protein design and engineering. Here we describe ProGen, a…”
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Challenge data set for macromolecular multi‐microcrystallography
Published in Acta crystallographica. Section D, Biological crystallography. (01-02-2019)“…A synthetic data set demonstrating a particularly challenging case of indexing ambiguity in the context of radiation damage was generated. This set shall serve…”
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Accessing protein conformational ensembles using room-temperature X-ray crystallography
Published in Proceedings of the National Academy of Sciences - PNAS (27-09-2011)“…Modern protein crystal structures are based nearly exclusively on X-ray data collected at cryogenic temperatures (generally 100 K). The cooling process is…”
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Structures of two novel crystal forms of Aspergillus oryzae alpha amylase (taka-amylase)
Published in Journal of bioscience and bioengineering (01-06-2021)“…The structures of Aspergillus oryzae α-amylase were determined in a tetragonal crystal, having one molecule as asymmetric unit, and a monoclinic crystal with…”
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Guide-bound structures of an RNA-targeting A-cleaving CRISPR–Cas13a enzyme
Published in Nature structural & molecular biology (01-10-2017)“…Crystal structures of unprocessed and mature crRNA-bound LbaCas13a shed light upon catalytic residues involved in crRNA maturation and mechanisms blocking…”
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The minimum crystal size needed for a complete diffraction data set
Published in Acta crystallographica. Section D, Biological crystallography. (01-04-2010)“…In this work, classic intensity formulae were united with an empirical spot‐fading model in order to calculate the diameter of a spherical crystal that will…”
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Structural dynamics in the water and proton channels of photosystem II during the S2 to S3 transition
Published in Nature communications (11-11-2021)“…Light-driven oxidation of water to molecular oxygen is catalyzed by the oxygen-evolving complex (OEC) in Photosystem II (PS II). This multi-electron,…”
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Untangling the sequence of events during the S₂ → S₃ transition in photosystem II and implications for the water oxidation mechanism
Published in Proceedings of the National Academy of Sciences - PNAS (09-06-2020)“…In oxygenic photosynthesis, light-driven oxidation of water to molecular oxygen is carried out by the oxygen-evolving complex (OEC) in photosystem II (PS II)…”
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Untangling the sequence of events during the S 2 → S 3 transition in photosystem II and implications for the water oxidation mechanism
Published in Proceedings of the National Academy of Sciences - PNAS (09-06-2020)“…In oxygenic photosynthesis, light-driven oxidation of water to molecular oxygen is carried out by the oxygen-evolving complex (OEC) in photosystem II (PS II)…”
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Towards the spatial resolution of metalloprotein charge states by detailed modeling of XFEL crystallographic diffraction
Published in Acta crystallographica. Section D, Biological crystallography. (01-02-2020)“…Oxidation states of individual metal atoms within a metalloprotein can be assigned by examining X‐ray absorption edges, which shift to higher energy for…”
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R‐factor gap in macromolecular crystallography: an untapped potential for insights on accurate structures
Published in The FEBS journal (01-09-2014)“…In macromolecular crystallography, the agreement between observed and predicted structure factors (Rcᵣyₛₜ and Rfᵣₑₑ) is seldom better than 20%. This is much…”
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Implementation and performance of SIBYLS: a dual endstation small-angle X-ray scattering and macromolecular crystallography beamline at the Advanced Light Source
Published in Journal of applied crystallography (01-02-2013)“…The SIBYLS beamline (12.3.1) of the Advanced Light Source at Lawrence Berkeley National Laboratory, supported by the US Department of Energy and the National…”
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Structural evidence for intermediates during O2 formation in photosystem II
Published in Nature (London) (18-05-2023)“…In natural photosynthesis, the light-driven splitting of water into electrons, protons and molecular oxygen forms the first step of the solar-to-chemical…”
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Covalent Modification and Regulation of the Nuclear Receptor Nurr1 by a Dopamine Metabolite
Published in Cell chemical biology (16-05-2019)“…Nurr1, a nuclear receptor essential for the development, maintenance, and survival of midbrain dopaminergic neurons, is a potential therapeutic target for…”
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Influence of pump laser fluence on ultrafast myoglobin structural dynamics
Published in Nature (London) (22-02-2024)“…High-intensity femtosecond pulses from an X-ray free-electron laser enable pump–probe experiments for the investigation of electronic and nuclear changes…”
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Protein structural ensembles are revealed by redefining X-ray electron density noise
Published in Proceedings of the National Academy of Sciences - PNAS (07-01-2014)“…To increase the power of X-ray crystallography to determine not only the structures but also the motions of biomolecules, we developed methods to address two…”
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Predicting the X-ray lifetime of protein crystals
Published in Proceedings of the National Academy of Sciences - PNAS (17-12-2013)“…Radiation damage is a major cause of failure in macromolecular crystallography experiments. Although it is always best to evenly illuminate the entire volume…”
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Structures of the Bacterial Ribosome at 3.5 Å Resolution
Published in Science (American Association for the Advancement of Science) (04-11-2005)“…We describe two structures of the intact bacterial ribosome from Escherichia coli determined to a resolution of 3.5 angstroms by x-ray crystallography. These…”
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