Results 81 to 90 of about 2,833,449 (298)

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

FEBS 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, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Phase shift and spectral function from PWA [PDF]

EPJ Web of Conferences, 2019
I illustrate a robust method for extracting an effective phase shift and an effective spectral weight for a coupled-channel system. These quantities are useful for describing the thermodynamics of an interacting hadron gas within the S-matrix formulation.
Man Lo Pok
doaj   +1 more source

Focusing and phase compensation of paraxial beams by a left-handed material slab

, 2006
On the basis of angular spectrum representation, a formalism describing paraxial beams propagating through an isotropic left-handed material (LHM) slab is presented.
Born, Ciattoni, Dumelow, Erden, Fei Li, Feng, Feng, Feng, Garcia, Garcia, Goodman, Hailu Luo, Houck, Hu, Lax, Li, Lindell, Luo, Luo, Luo, Nieto-Vesperinas, Notomi, Pacheco, Parazzoli, Parazzoli, Pendry, Shelby, Siegman, Smith, Smith, Smith, Smith, Valanju, Veselago, Wei Hu, Weixing Shu, Williams, Zhang, Zhongzhou Ren, Ziolkowski, ’t Hooft   +40 more
core   +1 more source

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

FEBS 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, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

The Phase Shifts of the Paired Wings of Butterfly Diagrams

, 2010
Sunspot groups observed by Royal Greenwich Observatory/US Air Force/NOAA from May 1874 to November 2008 and the Carte Synoptique solar filaments from March 1919 to December 1989 are used to investigate the relative phase shift of the paired wings of ...
Feng, Wen, Li, Kejun, Liang, Hongfei
core   +1 more source

Light shifts in atomic Bragg diffraction [PDF]

, 2016
Bragg diffraction of an atomic wave packet in a retroreflective geometry with two counterpropagating optical lattices exhibits a light shift induced phase. We show that the temporal shape of the light pulse determines the behavior of this phase shift: In
Abend, Sven, Friedrich, Alexander, Giese, Enno, Rasel, Ernst M., Schleich, Wolfgang P.   +4 more
core   +3 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Phase shift in experimental trajectory scaling functions

, 1993
For one dimensional maps the trajectory scaling functions is invariant under coordinate transformations and can be used to compute any ergodic average.
Cvitanović, de Boor, Ecke, Ecke, Feigenbaum, Feigenbaum, Feigenbaum, Packard, Robert E. Ecke, Ronnie Mainieri, Ruelle, Shenker, Sullivan, Takens, Vul   +14 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Associational refuge facilitates phase shifts to macroalgae in a coral reef ecosystem

Ecosphere, 2018
Coral reefs are among the most diverse and productive marine ecosystems and are currently threatened by natural disturbances such as predator outbreaks and tropical storms that can facilitate community shifts from coral to macroalgae.
Samantha L. Davis
doaj   +1 more source