Results 81 to 90 of about 495,141 (240)

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

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, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Prospecting the protein design landscape

FEBS Letters, EarlyView.
This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona, Katharina T. Stonig, Jens Meiler, Clara T. Schoeder, Monica L. Fernández‐Quintero   +4 more
wiley   +1 more source

Homeostatic responses to amino acid insufficiency

Animal Nutrition, 2015
This article provides a brief overview describing how two key signaling pathways, namely the integrated stress response and the mammalian target of rapamycin complex 1, work together to facilitate cellular adaptation to dietary amino acid insufficiency ...
Tracy G. Anthony
doaj   +1 more source

RNA‐related functions of BRCA2 in transcription, replication, and genome stability

FEBS Letters, EarlyView.
Beyond its role in homologous recombination, BRCA2 regulates R‐loop homeostasis, DNA–RNA hybrid resolution, RNA polymerase II dynamics, and transcriptional activation. Disruption of any of these functions can contribute to genome instability, inflammatory signaling, and tumorigenesis. BRCA2 is a central tumor suppressor protein best known for its roles
Lucia Alvaro‐Aranda, Sreerama Chaitanya Sridhara, Aura Carreira   +2 more
wiley   +1 more source

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, Antonia Petropoulou, Alexandra Anastogianni, Angelina Bania, Vassilis Stamatakis, Argyris Alexiou, Chi‐Ping Day, Glenn Merlino, Katerina Grafanaki, Constantinos Stathopoulos   +9 more
wiley   +1 more source

Xanthohumol inhibits extracellular matrix degradation via the Nrf2/PERK/ATF4/C/EBPβ pathway in osteoarthritis

Türk Biyokimya Dergisi
This study aims to explore the therapeutic potential of Xanthohumol (XH) in mitigating osteoarthritis (OA) progression by inhibiting extracellular matrix (ECM) degradation.
Zheng Tiansheng, Niu Shuo, Zhou Qingluo, Huang Jishang, Yi Jun, Mei Runhong, Yu Xuefeng   +6 more
doaj   +1 more source

Activating Transcription Factor 4 regulation of radiofrequency radiation-induced ferroptosis in osteoblasts

Electromagnetic Biology and Medicine
Given the ubiquitous presence of radiofrequency (RF) radiation sources in modern environments, concerns have been raised regarding their cytotoxic effects on osteoblasts and potential implications for skeletal health. This study investigated the molecular mechanisms underlying these effects, focusing on ferroptosis, a form of regulated cell death ...
Haiying, Wang, Weijin, Zou, Caihua, Ding, Yi, Cao   +3 more
openaire   +2 more sources

The ubiquitin system in normal and infected germinal center B cells

FEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis, Lesly Mejia, Emily K Moser   +2 more
wiley   +1 more source

Role of ATF4 in fibroblast proliferation and apoptosis induced by mechanical trauma through the miR−93-3p/Smad7 axis

Stress
Stress urinary incontinence (SUI) is a serious disease for females. This study attempts to explore the role of activating transcription factor 4 (ATF4) in mechanical trauma-induced SUI fibroblast cell proliferation and apoptosis, thereby finding a ...
Wei Li, Haitang Chen, Xueyan Hu, Peifan Yang, Mingmin Liu   +4 more
doaj   +1 more source