Results 101 to 110 of about 13,685,848 (310)
Flutter to tumble transition of buoyant spheres triggered by rotational inertia changes
Nature Communications, 2018 Spiral and zigzag trajectories of rising bubbles and falling leaves represent some of the path instabilities commonly observed for objects moving through fluids. Here, Mathai et al.
Varghese Mathai +3 more
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Chaotic micromixing in open wells using audio-frequency acoustic microstreaming
BioTechniques, 2009 Mixing fluids for biochemical assays is problematic when volumes are very small (on the order of the 10 µL typical of single drops), which has inspired the development of many micromixing devices.
Karolina Petkovic-Duran +3 more
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The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Mechanisms of transcriptional regulation of ecdysone response
Вавиловский журнал генетики и селекции, 2019 The mechanisms of ecdysone-dependent expression have been studied for many decades. Initially, the activation of individual genes under the influence of ecdysone was studied on the model of polythene chromosomes from salivary glands of Drosophila ...
M. Yu. Mazina, N. E. Vorobyeva
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Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Nature Communications, 2018 Chromosome instability is associated with cancer formation. Here the authors identify in cultured human cancer cells a non-canonical DNA bridge breakage pathway leading to chromosome missegregation and rearrangements triggered by sister DNA ...
Ankana Tiwari +2 more
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FEBS Letters, EarlyView.Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise +5 more
wiley +1 more source
Epigenomic and transcriptomic persistence of heat stress memory in strawberry (Fragaria vesca)
BMC Plant BiologyBackground In plants, epigenetic stress memory has so far been found to be largely transient. Here, we wanted to assess the heritability of heat stress-induced epigenetic and transcriptomic changes following woodland strawberry (Fragaria vesca ...
María-Estefanía López +2 more
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Complex Dynamics of an Adnascent-Type Game Model
Discrete Dynamics in Nature and Society, 2008 The paper presents a nonlinear discrete game model for two oligopolistic firms whose products are adnascent. (In biology, the term adnascent has only one sense, “growing to or on something else,” e.g., “moss is an adnascent plant.” See Webster's Revised ...
Baogui Xin, Junhai Ma, Qin Gao
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A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma
FEBS Letters, EarlyView.Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos +9 more
wiley +1 more source