Results 61 to 70 of about 7,535 (227)

Hydroxyethyl cellulose matrix applied to serial crystallography [PDF]

, 2019
Serial femtosecond crystallography (SFX) allows structures of proteins to be determined at room temperature with minimal radiation damage. A highly viscous matrix acts as a crystal carrier for serial sample loading at a low flow rate that enables the ...
Hatsui, T., Inoue, S., Iwata, S., Joti, Y., Kameshima, T., Masuda, T., Mizohata, E., Nakane, T., Nakatsu, T., Nango, E., Numata, K., Nureki, O., Song, C., Sugahara, M., Suzuki, M., Tanaka, R., Tono, K., Yabashi, M., Yumoto, F.   +18 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Biocatalytic Regioselective C‐Formylation of Resorcinol Derivatives

Angewandte Chemie, EarlyView.
An acyltransferase from Chromobacterium sphagni (CsATase) was identified that catalyzes the regioselective formylation of resorcinol substrates. The formylation of substituted resorcinol derivatives yielded mono‐formylated products with up to 99% conversion and up to 74% isolated yield.
Lilla Gal, Suresh Rohan, Anna Żądło‐Dobrowolska, Bianca Hilweg, Judith Müller, Kai Tittmann, Wolfgang Kroutil   +6 more
wiley   +2 more sources

A new crystal form of penicillin acylase from Escherichia coli [PDF]

, 1997
A new crystal form of penicillin acylase (penicillin amidohydrolase, E.C. 3.5.1.11) from Escherichia coli W (ATCC 11105) is reported. The crystals were grown using a combination of hanging-drop and streak-seeding methods.
Brannigan, J.A., Done, S.H., McVey, C.E., Tolley, S.P., Wilson, K.S.   +4 more
core   +2 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Dual Circularly Polarized Luminescence from Chiral Boron‐Embedded Polycyclic Aromatic Hydrocarbons

Angewandte Chemie, EarlyView.
Boron‐embedded polycyclic aromatic hydrocarbons featuring an asymmetric boron center coordinated by a proximal P═O group were synthesized. Anthracene‐fused boracyclic derivatives show dual circularly polarized luminescence (CPL) arising from excited‐state P═O⋯B dissociation, which converts point chirality into C−B axial chirality.
Tatsuya Mori, Yoshiharu Sano, Tomoyuki Ikai, Yuuya Kawasaki, Katsuhiko Tomooka, Takahiro Sasamori, Shigehiro Yamaguchi   +6 more
wiley   +2 more sources

Of bits and bugs [PDF]

, 2010
Pur-α is a nucleic acid-binding protein involved in cell cycle control, transcription, and neuronal function. Initially no prediction of the three-dimensional structure of Pur-α was possible.
Graebsch, Almut, Kostrewa, Dirk, Niessing, Dierk, Roche, Stéphane, Söding, Johannes   +4 more
core   +1 more source

Insight into the Internal Structure of Biogenic, Synthetic and Geological Apatite by Electron Microscopy and X‐Ray Scattering

Advanced Functional Materials, EarlyView.
Apatite occurs in many forms in nature, e.g. in teeth and geological minerals. Internally, biological apatite contains nanocrystals that are also found in synthetically prepared calcium phosphate nanoparticles which are used in biomedicine, e.g. for gene and drug delivery and for bone regeneration. Abstract Calcium phosphate is the inorganic component (
Kathrin Kostka, Oleg Prymak, Kateryna Loza, Matthias Epple   +3 more
wiley   +1 more source

Serial millisecond crystallography for routine room-temperature structure determination at synchrotrons [PDF]

Nature Communications, 2017
AbstractHistorically, room-temperature structure determination was succeeded by cryo-crystallography to mitigate radiation damage. Here, we demonstrate that serial millisecond crystallography at a synchrotron beamline equipped with high-viscosity injector and high frame-rate detector allows typical crystallographic experiments to be performed at room ...
Tobias Weinert, Natacha Olieric, Robert Cheng, Steffen Brünle, Daniel James, Dmitry Ozerov, Dardan Gashi, Laura Vera, May Marsh, Kathrin Jaeger, Florian Dworkowski, Ezequiel Panepucci, Shibom Basu, Petr Skopintsev, Andrew S. Doré, Tian Geng, Robert M. Cooke, Mengning Liang, Andrea E. Prota, Valerie Panneels, Przemyslaw Nogly, Ulrich Ermler, Gebhard Schertler, Michael Hennig, Michel O. Steinmetz, Meitian Wang, Jörg Standfuss   +26 more
openaire   +5 more sources

A simple goniometer-compatible flow cell for serial synchrotron X-ray crystallography

Journal of Applied Crystallography, 2023
Serial femtosecond crystallography was initially developed for room-temperature X-ray diffraction studies of macromolecules at X-ray free electron lasers. When combined with tools that initiate biological reactions within microcrystals, time-resolved serial crystallography allows the study of structural changes that occur during an enzyme catalytic ...
Ghosh, Swagatha, Zorić, Doris, Dahl, Peter, Bjelčić, Monika, Johannesson, Jonatan, Sandelin, Emil, Borjesson, Per, Björling, Alexander, Banacore, Analia, Edlund, Petra, Aurelius, Oskar, Milas, Mirko, Nan, Jie, Shilova, Anastasya, Gonzalez, Ana, Mueller, Uwe, Brändén, Gisela, Neutze, Richard   +17 more
openaire   +3 more sources