Results 121 to 130 of about 1,936,115 (314)

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

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

Phosphine-mediated hydrogen bond and phosphorescence energy transfer for tunable chiroptical afterglow in stacked polymers

open access: yesNature Communications
Polymer-doped chiral organic afterglow (COA) materials represent an emerging frontier in photonics, yet their development is constrained by weak hydrogen bond interactions and limited spectral diversity.
Zhisheng Gao   +15 more
doaj   +1 more source

Bioinspired strategy to reinforce PVA with improved toughness and thermal properties via hydrogen-bond self-assembly

open access: yes, 2013
Despite the high strength and stiffness of polymer nanocomposites, they usually display lower deformability and toughness relative to their matrices. Spider silk features exceptionally high stiffness and toughness via the hierarchical architecture based ...
Song, Ping'An, Guo, Qipeng, Xu, Zhiguang
core   +1 more source

The C‐terminal domain of yeast Arginyltransferase1 is essential for its catalytic activity

open access: yesFEBS Open Bio, EarlyView.
Arginyltransferase 1 (Ate1), a eukaryotic enzyme, catalyses arginylation, transferring arginine from tRNA‐Arg to the amino terminus of the target protein. Overexpression of Ate1 in yeast is lethal and is dependent on arginylation. This study elucidates how mutations in the cofactor‐binding and active site of Ate1 and truncation of its structural ...
Vikas Kumar Yadav   +4 more
wiley   +1 more source

Detection of hydrogen-bond signature patterns in protein families

open access: yes, 2003
We have developed a WWW server, HBPRINT, for the identification of hydrogen–bond signature patterns in protein families from their structures. The server calculates (a) common hydrogen bonds between two structures (b) a hydrogen-bond fingerprint in a set
Chandra, Nagasuma   +2 more
core   +2 more sources

The Nature of the Hydrogen Bond: Models and Theories

open access: yes, 2009
D-H...:A H-bonded interactions (D and :A = H-bond donor and acceptor) display a wide interval of binding energies, E(HB), from less than one to 45 kcal/mol which, unlike normal chemical bonds, feature properties that do not simply depend on D and :A but ...
GILLI, Paola
core  

Hydrogen-Bond-Regulated Platelet Micelles by Crystallization-Driven Self-Assembly and Templated Growth for Poly(ε-Caprolactone) Block Copolymers

open access: yes
Living crystallization-driven self-assembly (CDSA) is a powerful approach to tailor nanoparticles with controlled size and spatially defined compositions from amphiphilic crystalline block copolymers (BCPs).
Yawei Su (10260626)   +7 more
core   +1 more source

MARK4 enhances stress granule formation under oxidative stress and increases tau accumulation

open access: yesFEBS Open Bio, EarlyView.
MARK4 (red dots) localizes to stress granules (orange dots) and promotes their formation under oxidative stress by modulating TIA1 (blue dots). MARK4 and TIA1 synergistically increase tau (purple) accumulation, and the reduction of the TIA1 ortholog suppresses neurodegeneration in a fly model.
Sho Nakajima   +8 more
wiley   +1 more source

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

open access: yesFEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn   +2 more
wiley   +1 more source

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