Results 61 to 70 of about 5,072,023 (302)

Structural Biology by NMR: Structure, Dynamics, and Interactions

open access: yesPLoS Computational Biology, 2008
The function of bio-macromolecules is determined by both their 3D structure and conformational dynamics. These molecules are inherently flexible systems displaying a broad range of dynamics on time-scales from picoseconds to seconds. Nuclear Magnetic Resonance (NMR) spectroscopy has emerged as the method of choice for studying both protein structure ...
Markwick, Phineus R L   +2 more
openaire   +4 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Self-powered near-infrared mechanoluminescence through MgO/MgF2 piezo-photonic heterojunctions

open access: yesNature Communications
Near-infrared mechanoluminescent (NIR ML) materials attract considerable attention for their force-to-light conversion capabilities. However, current materials generally have disadvantages such as high threshold and poor self-recovery ability, which ...
Sheng Wu   +4 more
doaj   +1 more source

Interplay of Spin-Orbit Interactions, Dimensionality, and Octahedral Rotations in Semimetallic SrIrO$_3$

open access: yes, 2015
We employ reactive molecular-beam epitaxy to synthesize the metastable perovskite SrIrO$_{3}$ and utilize {\it in situ} angle-resolved photoemission to reveal its electronic structure as an exotic narrow-band semimetal.
Faeth, B. D.   +12 more
core   +1 more source

Impact of dynamical chiral symmetry breaking on meson structure and interactions [PDF]

open access: yes, 2010
We provide a glimpse of recent progress in meson physics made via QCD's Dyson-Schwinger equations with: a perspective on confinement and dynamical chiral symmetry breaking (DCSB); a pre'cis on the physics of in-hadron condensates; results for the masses ...
C. D. ROBERTS   +4 more
core   +2 more sources

Structures of Cytoskeleton and Disease Interactions

open access: yesActa Medica Alanya, 2019
Researchers reported different basics for different kind of diseases with advanced technology. Meanwhile, investigators are focused on to clarify the interactions of basic cellular mechanisms recently. Therefore, cytoskeletal researches are gain importance due to this tendency.
Abdullah MELEKOĞLU, Oğuz KARAHAN
openaire   +4 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Shadows and photon rings of a quantum black hole

open access: yesPhysics Letters B
Recently, a black hole model in loop quantum gravity has been proposed by Lewandowski, Ma, Yang and Zhang (2023) [34]. The metric tensor of the quantum black hole (QBH) is a suitably modified Schwarzschild one.
Jing-Peng Ye   +4 more
doaj   +1 more source

Structure and Intermolecular Interactions between L-Type Straight Flagellar Filaments. [PDF]

open access: yes, 2017
Bacterial mobility is powered by rotation of helical flagellar filaments driven by rotary motors. Flagellin isolated from the Salmonella Typhimurium SJW1660 strain, which differs by a point mutation from the wild-type strain, assembles into straight ...
Dogic, Zvonimir   +5 more
core  

Quantum Strings and Bethe Equations

open access: yes, 2004
I briefly review the recently proposed construction of the Bethe ansatz which diagonalizes the Hamiltonian for quantum strings on AdS_5\times S^5 at large tension and restricted to the large charge states from a closed su(2) subsector.Comment: Latex, 6 ...
Arutyunov   +35 more
core   +1 more source

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