Results 121 to 130 of about 27,475,594 (335)

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

GravSphere2: A higher order Jeans method for mass modeling spherical stellar systems

Astronomy & Astrophysics
Aims. Mass-modeling methods are used to infer the gravitational field of stellar systems, from globular clusters to giant elliptical galaxies. While many methods already exist, most require assumptions on the form of the underlying distribution function ...
Bañares-Hernández Andrés, Read Justin I., Júlio Mariana P.   +2 more
doaj   +1 more source

τ-locally invariant groups

Topology and its Applications, 2000
The author calls a topological group \(G\) \(\tau\)\textit{-locally invariant,} where \(\tau\) is an infinite cardinal, if \(G\) embeds, as a topological subgroup, into the direct product of a family of topological groups of character \(
openaire   +1 more source

Locally C-Nash groups

, 2017
We introduce the category of locally C-Nash groups, basic examples of such groups are complex algebraic groups. We prove that the latter form a full subcategory. We also show that both, abelian locally Nash and abelian locally C-Nash groups, can be characterised via meromorphic maps admitting an algebraic addition theorem; we give an invariant of such ...
Baro, Elías, de Vicente, Juan, Otero Domínguez, Margarita   +2 more
openaire   +3 more sources

A High‐Sensitivity Circulating Nucleic Acid Sequencing Assay for Assessing Treatment Response to Alectinib in a Pediatric Patient With ALK‐Rearranged Non–Small Cell Lung Cancer

Pediatric Blood &Cancer, EarlyView.
Alberto D. Guerra, Nicholas F. Evageliou, Vandana Batra, Kristen L. Dalton, Stephanie Ortel, Usman Ashraf, Tricia R. Bhatti, Lisa J. States, Lea F. Surrey, Theodore W. Laetsch   +9 more
wiley   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

WLM: Dynamics of an isolated dwarf irregular galaxy under ram pressure in the Local Group

Astronomy & Astrophysics
The Wolf–Lundmark–Melotte (WLM) galaxy is an archetypal dwarf irregular galaxy that has not experienced interactions with major Local Group galaxies within the past 8 Gyr.
Kolhe Neel, Hammer Francois, Yang Yanbin, Namumba Brenda, Chemin Laurent, Amram Philippe, Ianjamasimanana Roger, Carignan Claude   +7 more
doaj   +1 more source

Locally p-Smooth Groups

Journal of Algebra, 1994
Let \(G\) be a group, \(H \leq G\), \(\mathcal C\) the conjugacy class of \(H\) in \(G\), \(k\) a field of characteristic \(p\), \(V\) a \(kG\)-module. Let \(^H V=\{v \in V :\) for all \(h \in H\), \(hv=v\}\), \(S(V)=\sum_{K \neq 1} {^KV}\), \(Q(V)=V/S(V)\), \(S^H(V)=\sum_{K\in{\mathcal C}} {^KV}\), \(Q^{(H)}(V)=V/S^{(H)}(V)\). \(G\) is \(p\)-smooth \(\
openaire   +3 more sources

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

Estimating the dynamical masses of dwarf galaxies in the presence of binary-star contamination

Astronomy & Astrophysics
Context. The line-of-sight (l.o.s.) velocity dispersion (σlos) of the stellar component of ultra-faint-dwarf galaxies (UFDs) typically ranges from 3 to 6 km s−1. Applying standard mass estimators, this hints at extreme dynamical mass-to-light ratios (M/L)
Arroyo-Polonio José María, Battaglia Giuseppina, Thomas Guillaume F.   +2 more
doaj   +1 more source