Results 101 to 110 of about 1,415,660 (303)

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

open access: yesFEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer   +7 more
wiley   +1 more source

Early time hydrogen-bonding dynamics of photoexcited coumarin 102 in hydrogen-donating solvents: Theoretical study

open access: yes, 2007
To study the early time hydrogen-bonding dynamics of chromophore in hydrogen-donating solvents upon photoexcitation, the infrared spectra of the hydrogen-bonded solute-solvent complexes in electronically excited states have been calculated using the time-
韩克利, Han, Ke-Li, Zhao, Guang-Jiu
core   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Investigating the impact of hydrogen bonding in blends containing lignin-derivable polymers

open access: yes
Epps, Thomas H. IIIIn this work, poly(acrylic acid) (PAA) was blended with lignin-derivable polymers to investigate the effects of hydrogen bonding on phase behavior.
Li, Sonia C.
core   +1 more source

Hydrogen-Bonding-Assisted α‑F Elimination from Cu–CF3 for in Situ Generation of R3N·HF Reagents: Reaction Design and Applications

open access: yes, 2019
We report herein a strategy of ammonium hydrogen-bonding-assisted α-F elimination from Cu–CF3 compounds that generates R3N·HF reagents in situ. Combining this strategy and Cu­(III)–CF3 chemistry with alkynes, dual fluorination and trifluoromethylation of
Song-Lin Zhang (1446973)   +1 more
core   +1 more source

Salmonella enterica serovar typhi limits the potency of typhoid toxin and ADP‐ribosylating toxin AB to establish a persistent infection

open access: yesFEBS Open Bio, EarlyView.
The two catalytic subunits of typhoid toxin dissociate from the holotoxin in the ER of an intoxicated cell, but only CdtB exits the ER to generate immunosuppressive effects. PltA is retained in the ER and sequestered from its cytosolic target, thus allowing the anti‐inflammatory effects of CdtB to promote intestinal colonization.
Maria C. Zabala‐Rodriguez   +4 more
wiley   +1 more source

Crystal structure of catena-poly[[[tetraaquacobalt(II)]-μ2-1,5-dihydroxynaphthalene-2,6-dicarboxylato] dimethylformamide disolvate]

open access: yesActa Crystallographica Section E: Crystallographic Communications
The asymmetric unit of the title compound, {[Co(C12H6O6)(H2O)4]·2C3H7NO}n or {[Co(H2dondc)(H2O)4]·2DMF}n, comprises half of a CoII ion, half of a 1,5-dihydroxynaphthalene-2,6-dicarboxylate dianion (H2dondc2−), two water molecules and a dimethylformamide (
Hitoshi Kumagai   +2 more
doaj   +1 more source

The Effect of Intermolecular Hydrogen Bonding on the Fluorescence of a Bimetallic Platinum Complex

open access: yes, 2010
The bimetallic platinum complexes are known as unique building blocks and arewidely utilized in the coordination-driven self-assembly of functionalized supramolecular metallacycles.
Stang, Peter J.   +5 more
core   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Reactions of Ruthenabenzene with Propynols Involving Hydrogen-Bonding-Induced [2 + 2] Cycloaddition

open access: yes
Enyne metathesis reactions involving metallacyclobutene intermediates have been comprehensively studied and utilized in numerous synthetic processes and catalytic transformations.
Yapeng Cai (7107647)   +5 more
core   +2 more sources

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