Results 171 to 180 of about 102,384 (311)

Ionizing Radiation and Ultraviolet Light Irradiation‐Associated DNA Damage Increasing Genomic Instability Risk

open access: yesCancer Science, EarlyView.
UV irradiation induces two major types of pyrimidine dimers, CPDs and 6–4PPs. Whereas 6–4PPs efficiently induce cell‐cycle arrest, CPDs do not and frequently persist into S phase. As a result, DSBs can arise in the presence of unrepaired CPDs after 6–4PPs have been repaired, increasing the risk of genomic instability.
Ken‐ichi Yoshioka   +2 more
wiley   +1 more source

Proteostasis of organelles in aging and disease

open access: yesThe FEBS Journal, EarlyView.
Cells rely on regulated proteostasis mechanisms to keep their internal compartments functioning properly. When these mechanisms fail, damaged proteins accumulate, disrupting organelles, such as the nucleus, mitochondria, endoplasmic reticulum, Golgi, and lysosomes, as well as membraneless organelles, such as stress granules, processing bodies, the ...
Yara Nabawi   +5 more
wiley   +1 more source

Heterochromatin : Molecular and structural aspects

open access: yes, 1997
XV+301hlm ...
VERMA, RAM S., KHAIRANI, LAILY
core  

Spatially resolved mapping of histones reveals selective neuronal response in Rett syndrome

open access: yesThe FEBS Journal, EarlyView.
Loss of Mecp2 function is associated with Rett syndrome (RTT). MeCP2 regulates chromatin, yet its influence on histone composition and dynamics is unclear. Combining MALDI‐MSI with LCM–LC–MS/MS, we mapped histone proteoforms across the dentate gyrus, cornu ammonis, and cerebellum in two mouse models of RTT.
Frederike Schäfer   +6 more
wiley   +1 more source

Chd4 and ThPOK cooperate to preserve structural and electrophysiological integrity of the adult heart through Sprr1a repression

open access: yesThe FEBS Journal, EarlyView.
Chd4/NuRD and ThPOK cooperate to maintain transcriptional repression and nuclear organization in adult cardiomyocytes. Chd4 loss reduces miR‐150‐5p, relieving repression of Sprr1a, while ThPOK loss further enhances Sprr1a activation, possibly through altered chromatin–lamina interactions.
Fadoua El Abdellaoui‐Soussi   +12 more
wiley   +1 more source

Reorganization of H3K9me heterochromatin leads to neuronal impairment via the cascading destruction of the KDM3B-centered epigenomic network

open access: yesiScience
Summary: Histone H3K9 methylated heterochromatin silences repetitive non-coding sequences and lineage-specific genes during development, but how tissue-specific genes escape from heterochromatin in differentiated cells is unclear.
Mi-Jin An   +15 more
doaj   +1 more source

The epigenetic landscape of skeletal muscle in response to exercise and aging

open access: yesThe FEBS Journal, EarlyView.
Epigenetic mechanisms regulate gene expression in response to exercise and aging, thereby supporting skeletal muscle plasticity. Acute exercise induces chromatin remodeling through histone modifications and DNA methylation, promoting the expression of exercise‐responsive genes.
Sabrina Champsi, David A. Hood
wiley   +1 more source

Characterization of dermatan sulfate and chondroitin sulfate profiles during brain regeneration in Styela plicata

open access: yesThe FEBS Journal, EarlyView.
Adult ascidians are capable of regenerating their entire brains following injury, and glycosaminoglycans have been shown to either promote or inhibit neuritogenesis. In this study, dermatan 2,6‐disulfate (D2,6S) was identified as the predominant complex carbohydrate in the ascidian brain.
Taynan Motta Portal   +5 more
wiley   +1 more source

Directional information flow in human frataxin defines allosteric pathways connecting the hydrophobic core to the iron‐binding ridge

open access: yesThe FEBS Journal, EarlyView.
Human frataxin deficiency causes Friedreich's ataxia, yet how iron‐binding events are communicated across the protein is unclear. Using transfer entropy analysis of molecular dynamics simulations, we identify buried hydrophobic core leucines (LEU136, LEU140) as the source of directional signaling toward the iron‐binding acidic ridge.
Kevser Kübra Kırboğa   +1 more
wiley   +1 more source

Role of the tomato MARS1/ROUGH gene encoding a LYSINE‐SPECIFIC HISTONE DEMETHYLASE 1 in adventitious root and fruit skin formation

open access: yesJournal of Integrative Plant Biology, EarlyView.
The tomato mars1/rough mutant displays enhanced root regeneration and rough fruits due to ectopic cell proliferation. The causal gene encodes a lysine‐specific histone demethylase that normally maintains gene silencing. Its loss alters histone methylation, upregulating several genes, including those B‐type cyclins involved in tissue‐specific cellular ...
Eduardo Larriba   +14 more
wiley   +1 more source

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