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MetabolomicsThe pyruvate kinase, a metabolic sensor powering glycolysis, drives the metabolic control of DNA replication

BACKGROUND: In all living organisms, DNA replication is exquisitely regulated in a wide range of growth conditions to achieve timely and accurate genome duplication prior to cell division. Failures in this regulation cause DNA damage with potentially disastrous consequences ...

2022-04-19 | MTBLS4415 | MetaboLights
MetabolomicsDNA-PKcs drives CKD progression by activating TAF7/RAPTOR/mTORC1 signaling-mediated metabolic reprogramming

Kidney injury initiates epithelial dedifferentiation and myofibroblast activation during the progression of chronic kidney disease (CKD). Herein, we found that the expression of DNA-dependent protein kinase catalytic subunit (DNA-PKcs) was significantly increased in the kidney tissues of both CKD...

2023-01-25 | MTBLS5971 | MetaboLights
MetabolomicsUntargeted Metabolomics for Integrative Taxonomy: Metabolomics, DNA Marker-Based Sequencing, and Phenotype Bioimaging

Integrative taxonomy is a fundamental part of biodiversity and combines traditional morphology with additional methods such as DNA sequencing or biochemistry. Here, we aim to establish untargeted metabolomics for use in chemotaxonomy. We used three thallose liverwort species Riccia glauca

2026-01-30 | MTBLS4668 | MetaboLights
GenomicsDDM1 and RdDM are the major regulators of transposon DNA methylation in Arabidopsis
Eukaryotic DNA methylation is found in silent transposable elements and active genes. Nucleosome remodelers of the DDM1/Lsh family are thought to be specifically required to maintain transposon methylation, but the reason for this is unknown. Here, we find that a chromatin gradient that extends from...
ORGANISM(S): Arabidopsis thaliana 
2013-04-17 | E-GEOD-41302 | biostudies-arrayexpress
GenomicsH2A.Z Facilitates Access of Active and Repressive Complexes to Chromatin in Embryonic Stem Cell Self-renewal and Differentiation
Chromatin modifications have been implicated in the self-renewal and differentiation of embryonic stem cells (ESCs). However, the function of histone variant H2A.Z in ESCs remains unclear. We show that H2A.Z is highly enriched at promoters and enhancers and is required for both efficient self-renewa...
ORGANISM(S): Mus musculus 
2012-12-20 | E-GEOD-34483 | biostudies-arrayexpress
ProteomicsThe Human Proteome with Direct Physical Access to DNA
In a human cell, DNA is packed with histones, RNA, and chromatin-associated proteins, forming a cohesive gel. At any given moment, only a subset of the proteome has physical access to the DNA and organizes its structure, transcription, replication, repair, and other essential molecular functions. We...
ORGANISM(S): Homo Sapiens (ncbitaxon:9606) Mus Musculus (ncbitaxon:10090) 
2024-02-14 | MSV000094079 | MassIVE
ProteomicsIntegrative Structural Model of DNA-PK Synapsis
In non-homologous end joining repair of DNA double strand breaks, DNA dependent protein kinase catalytic subunit (DNA-PKcs) and Ku70/80 binds the free DNA ends forming the holoenzyme DNA-PK. DNA-PK synapses across the break to tether the broken ends in the initial long range synaptic complex. We gen...
ORGANISM(S): Homo sapiens (Human) 
2021-01-20 | PXD017931 | Pride
Dna-pk Hydrogen deuterium exchange Crosslinking 
ProteomicsProteomic profiling reveals distinct phases to the restoration of chromatin following DNA replication
Chromatin organization must be maintained during cell proliferation to preserve cellular identity and genome integrity. However, DNA replication results in transient displacement of DNA bound proteins, and it is unclear how they regain access to newly replicated DNA. Using quantitative MS-based prot...
ORGANISM(S): Homo sapiens (Human) 
2023-02-02 | PXD035489 | Pride
Chromatin Dna repair Access to dna Cell cycle Restoration Heterochromatin Euchromatin Transcription factors Dna replication Propagation 
TranscriptomicsTranscription profiling of rat brain tissues from animals with varying levels of access to cocaine
By using high-density oligonucleotide arrays, we profiled gene expression in reward-related brain regions of rats that developed escalated cocaine intake after extended access to cocaine (6 h per day). Rats allowed restricted daily access to cocaine (only 1 h) that displayed a stable level of cocain...
ORGANISM(S): Rattus norvegicus 
2007-10-10 | E-GEOD-3016 | biostudies-arrayexpress
ModelsSenescence Associated Secretory Phenotype
Cells and tissues are exposed to stress from numerous sources. Senescence is a protective mechanism that prevents malignant tissue changes and constitutes a fundamental mechanism of aging. It can be accompanied by a senescence associated secretory phenotype (SASP) that causes chronic inflammation. W...
11863 | Cell Collective
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