Results 101 to 110 of about 31,713 (195)

Sealing of chromosomal DNA nicks during nucleotide excision repair requires XRCC1 and DNA ligase III alpha in a cell-cycle-specific manner [PDF]

open access: yes, 2007
Impaired gap filling and sealing of chromosomal DNA in nucleotide excision repair (NER) leads to genome instability. XRCC1-DNA ligase IIIa (XRCC1-Lig3) plays a central role in the repair of DNA single-strand breaks but has never been implicated in NER ...
Aboussekhra   +57 more
core   +1 more source

Intercompartmental communication in senescence

open access: yesFEBS Open Bio, Volume 16, Issue 5, Page 837-856, May 2026.
Senescent cells experience structural changes in the plasma membrane, endoplasmic reticulum, mitochondria, lysosomes, nucleus, and cytoskeleton. These alterations disrupt crosstalk among cellular compartments, impairing vesicular trafficking, contact sites, and molecular flow.
Krystyna Mazan‐Mamczarz   +3 more
wiley   +1 more source

Monopolin subunit Csm1 associates with MIND complex to establish monopolar attachment of sister kinetochores at meiosis I [PDF]

open access: yes, 2013
Sexually reproducing organisms halve their cellular ploidy during gametogenesis by undergoing a specialized form of cell division known as meiosis. During meiosis, a single round of DNA replication is followed by two rounds of nuclear divisions (referred
A Petrovic   +40 more
core   +3 more sources

Nuclear Mechanotransduction Across the Metastatic Cascade: Decoding Spatiotemporal Heterogeneity in Cancer Dissemination

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
Tumor metastasis results from complex interactions between cancer cells and mechanical microenvironments. We propose a “nucleus‐centered, cross‐stage mechanical signal decoding” model, highlighting how nuclear mechanosensors interpret forces at different stages.
Linqi Song   +4 more
wiley   +1 more source

Structural visualization of key steps in nucleosome reorganization by human FACT

open access: yesScientific Reports, 2019
Facilitates chromatin transcription (FACT) is a histone chaperone, which accomplishes both nucleosome assembly and disassembly. Our combined cryo-electron microscopy (EM) and native mass spectrometry (MS) studies revealed novel key steps of nucleosome ...
Kouta Mayanagi   +7 more
doaj   +1 more source

A Quantitative Characterization of Nucleoplasmin/Histone Complexes Reveals Chaperone Versatility. [PDF]

open access: yes, 2016
Nucleoplasmin (NP) is an abundant histone chaperone in vertebrate oocytes and embryos involved in storing and releasing maternal histones to establish and maintain the zygotic epigenome. NP has been considered a H2A-H2B histone chaperone, and recently it
Alonso, E   +5 more
core   +2 more sources

RNA Modifications: Current Understandings and Future Perspectives

open access: yesMedComm, Volume 7, Issue 5, May 2026.
Types of RNA modification. We have summarized the currently common types of RNA modifications, including ac4C, m6A, m1A, m5C, m3C, m7G, and ψ, and visually characterized their features through structural formulas. The characteristic structures are marked with a background color different from the background color.
Shiyu Xiao   +7 more
wiley   +1 more source

Chronic Pain: Epidemiology, Pathophysiology, and Clinical Management

open access: yesMedComm, Volume 7, Issue 5, May 2026.
The multidimensional nature of chronic pain is illustrated through four interconnected domains. (Left) Epidemiology and Global Burden: Chronic pain affects approximately one in five individuals globally, contributing to a rising trend in disability‐adjusted life years (YLDs) and a significant socioeconomic impact.
Zhihao Shang   +12 more
wiley   +1 more source

Cdt1 revisited: complex and tight regulation during the cell cycle and consequences of deregulation in mammalian cells

open access: yesCell Division, 2006
In eukaryotic cells, replication of genomic DNA initiates from multiple replication origins distributed on multiple chromosomes. To ensure that each origin is activated precisely only once during each S phase, a system has evolved which features periodic
Fujita Masatoshi
doaj   +1 more source

Ligand‐driven modulation of chaperone–cochaperone networks shapes proteostasis outcomes

open access: yesProtein Science, Volume 35, Issue 5, May 2026.
Abstract Protein homeostasis depends on a delicate interplay between folding and degradation, orchestrated by molecular chaperones. Among them, Hsp90 is a central hub, regulating nearly 10% of the proteome through ATP‐driven conformational cycles and selective interactions with cochaperones.
Andrea Magni   +9 more
wiley   +1 more source

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