Results 61 to 70 of about 365,940 (292)

III-harmonic Curves in SL2ℝ˜\widetilde {{\rm{S}}{{\rm{L}}_2}\mathbb{R}} Space

Annals of the West University of Timisoara: Mathematics and Computer Science
Some work has been done in the study of non-geodesic III-harmonic curves in some model spaces. In this paper, we study III-harmonic curves in SL2ℝ˜\widetilde {{\rm{S}}{{\rm{L}}_2}\mathbb{R}} space. We give necessary and su cient conditions for helices to
Senoussi Bendehiba
doaj   +1 more source

The Voltage-Dependent Deactivation of the KvAP Channel Involves the Breakage of Its S4 Helix

Frontiers in Molecular Biosciences, 2020
Voltage-gated potassium channels (Kv) allow ion permeation upon changes of the membrane electrostatic potential (Vm). Each subunit of these tetrameric channels is composed of six transmembrane helices, of which the anti-parallel helix bundle S1-S4 ...
Olivier Bignucolo, Olivier Bignucolo, Simon Bernèche, Simon Bernèche   +3 more
doaj   +1 more source

Generalized Fixed Polarity Helix Transforms Over Gf(4)

, 2009
Publication in the conference proceedings of EUSIPCO, Glasgow, Scotland ...
Falkowski, Bogdan, Fu, Cheng
openaire   +1 more source

Interaction of HS1BP3 with cortactin modulates TKS5 localisation, cell secretion and cancer malignancy

Molecular Oncology, EarlyView.
Here, we demonstrate that HS1BP3 interacts with Cortactin through a proline‐rich region (PRR3.1) and show that this interaction, and HS1BP3 itself, promote cancer cell proliferation and invasion. Inhibition of this interaction leads to build‐up of TKS5 in multivesicular endosomes and altered secretion of CD63 and CD9, providing an explanation for the ...
Arja Arnesen Løchen, Kristiane Søreng, Chiara Veroni, Laura Trachsel‐Moncho, Nagham Asp, Robin Gaupset, Lars Gustav Lyckander, Helene Knævelsrud, Lars Eftang, Anne Simonsen   +9 more
wiley   +1 more source

Is the orientation of the fibrillar helix in the main layer of cell walls constant or variable within a tree?

Acta Societatis Botanicorum Poloniae, 2015
The study material consisted of samples from 270 Picea excelsa and 54 Abies alba trees with variable type of wood grain. No correlation was found between the orientation of the fibrils and the type of grain.
W. Pyszyński, Z. Hejnowicz
doaj   +1 more source

bHLH heterodimer complex variations regulate cell proliferation activity in the meristems of Arabidopsis thaliana

iScience, 2022
Summary: Root, shoot, and lateral meristems are the main regions of cell proliferation in plants. It has been proposed that meristems might have evolved dedicated transcriptional networks to balance cell proliferation. Here, we show that basic helix-loop-
Eliana Mor, Markéta Pernisová, Max Minne, Guillaume Cerutti, Dagmar Ripper, Jonah Nolf, Jennifer Andres, Laura Ragni, Matias D. Zurbriggen, Bert De Rybel, Teva Vernoux   +10 more
doaj   +1 more source

Tensioning the helix: a mechanism for force generation in twining plants [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2009
Twining plants use their helical stems to clasp supports and to generate a squeezing force, providing stability against gravity. To elucidate the mechanism that allows force generation, we measured the squeezing forces exerted by the twinerDioscorea bulbiferawhile following its growth using time-lapse photography.
Isnard, Sandrine, Cobb, Alexander R., Holbrook, N. Michele, Zwieniecki, Maciej, Dumais, Jacques   +4 more
openaire   +4 more sources

Twist versus Nonlinear Stacking in Short DNA Molecules

, 2014
The denaturation of the double helix is a template for fundamental biological functions such as replication and transcription involving the formation of local fluctuational openings.
Zoli, Marco
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Generation of multi-polarity helix transform over GF(3)

IEICE Electronics Express, 2004
In this article, the new multi-polarity helix transform for ternary logic functions has been introduced. In addition, an extended dual polarity property that had been used to optimize Kronecker and quaternary Fixed-Polarity Reed-Muller (FPRM) expressions has been applied to generate efficiently the multi-polarity helix transform over GF(3).
Cheng Fu, null Falkowski
openaire   +2 more sources