Results 51 to 60 of about 8,993,640 (291)

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

Analýza sociálnej štruktúry stredovekej spoločnosti [PDF]

Historicka Sociologie, 2013
This study concentrates on the analysis of social structure of medieval society and accordingly on the acquisition of knowledge (1) about their orderliness, (2) inner processes (3) and least partially their influence on the process of formation of West ...
Margita Minichová
doaj  

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

Oscillation criteria for third-order functional differential equations with damping

Electronic Journal of Differential Equations, 2016
This paper is a continuation of the recent study by Bohner et al [9] on oscillation properties of nonlinear third order functional differential equation under the assumption that the second order differential equation is nonoscillatory.
Martin Bohner, Said R. Grace, Irena Jadlovska   +2 more
doaj  

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

CENTER PROBLEM FOR THIRD-ORDER ODEs [PDF]

International Journal of Bifurcation and Chaos, 2013
We obtain necessary and sufficient conditions for the existence of a center on a local center manifold for three 4-parameter families of quadratic systems on ℝ3. We also give a positive answer to an open question posed in [Dias & Mello, 2010] related to similar systems.
openaire   +3 more sources

Third order superintegrable systems separating in polar coordinates

, 2010
A complete classification is presented of quantum and classical superintegrable systems in $E_2$ that allow the separation of variables in polar coordinates and admit an additional integral of motion of order three in the momentum.
Cosgrove C M, Drach J, Frédérick Tremblay, Hietarinta J, Kalnins E G, Kalnins E G, Kalnins E G, Kalnins E G Miller W Pogosyan G S, Marquette I, Marquette I, Marquette I, Mitrinović D S, Pavel Winternitz, Quesne C, Tremblay F, Tremblay F, Tsiganov A V, Winternitz P, Winternitz P, Wojciechowski S   +19 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

Oscillatory and asymptotically zero solutions of third order difference equations with quasidifferences [PDF]

Opuscula Mathematica, 2006
In this paper, third order difference equations are considered. We study the nonlinear third order difference equation with quasidifferences. Using Riccati transformation techniques, we establish some sufficient conditions for each solution of this ...
Ewa Schmeidel
doaj  

Analýza sociálnej štruktúry stredovekej spoločnosti

Historicka Sociologie, 2014
This study concentrates on the analysis of social structure of medieval society and accordingly on the acquisition of knowledge (1) about their orderliness, (2) inner processes (3) and least partially their influence on the process of formation of West ...
Margita Minichová
doaj   +1 more source