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Enzymatic modification of DNA nucleobases can coordinate gene expression, nuclease protection or mutagenesis. We recently discovered a clade of phage-specific cytosine methyltransferase (MT) and 5-methylpyrimidine dioxygenase (5mYOX) enzymes that produce 5-hydroxymethylcytosine (5hmC) as a precur...

2024-08-22 | MTBLS10724 | MetaboLights

Gene expression is a biological process regulated at different molecular levels, including chromatin accessibility, transcription, and RNA maturation and transport. In addition, these regulatory mechanisms have strong links with cellular metabolism. Here we present a multi-omics dataset that capt...

2020-02-14 | MTBLS1320 | MetaboLights
Non-canonical DNA structures such as G-quadruplex (G4) and i-motif (iM) are formed at the guanine- and cytosine-rich sequences, respectively, and prohibit DNA replication and transcription. The formation and resolution of these non-canonical structures are therefore required to be dynamically regula...
ORGANISM(S): Homo Sapiens (human) 
Accurate predictions of the DNA binding specificities of transcription factors (TFs) are necessary for understanding gene regulatory mechanisms. Traditionally, predictive models are built based on nucleotide sequence features. Here, we employed three- dimensional DNA shape information obtained on a ...
ORGANISM(S): Homo sapiens 
Polycomb Group (PcG) proteins regulate gene expression by modifying chromatin. A key PcG complex, PRC1, has two activities: a ubiquitin ligase activity for histone H2A, and a chromatin compacting/nucleosome bridging activity that can inhibit transcription and chromatin remodeling. In Drosophila, the...
ORGANISM(S): Drosophila Melanogaster (ncbitaxon:7227) 
2020-05-15 | MSV000085418 | MassIVE
The nucleosome is a fundamental unit of chromatin in eukaryotes, and generally prevents the binding of transcription factors to genomic DNA. Pioneer transcription factors overcome the nucleosome barrier, and bind their target DNA sequences in chromatin. OCT4 is a representative pioneer transcription...
ORGANISM(S): Homo Sapiens (human) 
Oxidative stress plays a key role in the pathogenesis of African trypanosomiasis, and plant-derived antioxidants represent a promising source of dual-action compounds capable of both scavenging reactive oxygen species and interfering with parasite survival. The present study investigates the antioxi...
2026-09-10 | MTBLS15597 | MetaboLights
Transcription factors direct gene expression, and so there is much interest in mapping their genome-wide binding locations. M-BM- Current methods do not allow for the multiplexed analysis of TF binding, and this limits their throughput. We describe a novel method for determining the genomic target g...
ORGANISM(S): Saccharomyces cerevisiae 
Begitt2014 - STAT1 cooperative DNA binding - double GAS polymer model The importance of STAT1-cooperative DNA binding in type 1 and type 2 interferon signalling has been studies using experimental and modelling approaches. The authors have developed two ODE models to describe STAT1...
2024-09-02 | BIOMD0000000501 | BioModels
Begitt2014 - STAT1 cooperative DNA binding - single GAS polymer model The importance of STAT1-cooperative DNA binding in type 1 and type 2 interferon signalling has been studies using experimental and modelling approaches. The authors have developed two ODE models to describe STAT1...
2024-09-02 | BIOMD0000000500 | BioModels
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