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MetabolomicsVirus-encoded glycosyltransferases hypermodify DNA with diverse glycans

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
GenomicsCpG underrepresentation and the new bacterial CpG specific DNA methyltransferase M.MpeI
The CpG depleted Mycoplasma penetrans harbors a CpG specific C5 methyltransferase. The aim of this experiment was to confirm the specificity of the methyltransferase in vivo and in vitro. Genomic DNA from Mycoplasma penetrans and Escherichia coli genomic DNA that either was or was not methylated in ...
ORGANISM(S): Escherichia coli 
2012-11-29 | E-GEOD-41022 | biostudies-arrayexpress
TranscriptomicsSmall RNA mediated DNA (cytosine-5) methyltransferase 1 inhibition leads to aberrant DNA methylation
Mammalian cells contain copious amounts of RNA including both coding and non-coding RNA (ncRNA). Generally the ncRNAs function to regulate gene expression at the transcriptional and post-transcriptional level. Among ncRNA, the long ncRNA and small ncRNA can affect histone modification, DNA methylati...
ORGANISM(S): Homo sapiens 
2015-04-21 | E-GEOD-68027 | biostudies-arrayexpress
TranscriptomicsThe Wilms' tumour 1 transcription factor regulates epigenetic states via DNA methyltransferase 3A
The Wilms' tumour 1 transcription factor regulates epigenetic states via DNA methyltransferase 3A. The data consists of two Nimblegen promoter/CpG island microarrays hybridized with MCIP DNA immunoprecipitated from either a HEK293-derived cell line expressing a heterologous WT1 cDNA (W210) or a cont...
ORGANISM(S): Homo sapiens 
2012-11-05 | E-GEOD-39713 | biostudies-arrayexpress
GenomicsDnmt2-dependent methylomes lack biologically relevant DNA methylation patterns
Several organisms belonging to diverse animal groups have retained Dnmt2 as their only bona fide DNA methyltransferase gene. However, recent studies have shown that Dnmt2 functions as a tRNA methyltransferase, which prompted us to analyze the methylomes of Dnmt2-only organisms at single-base resolut...
ORGANISM(S): Mus musculus 
2013-05-06 | E-GEOD-42170 | biostudies-arrayexpress
TranscriptomicsImmune regulation by low doses of the DNA methyltransferase inhibitor 5-azacitidine in common human epithelial cancers [methylation]
Epigenetic therapy is emerging as a potential therapy for solid tumors. To investigate its mechanism of action, we performed integrative expression and methylation analysis of 63 cancer cell lines (breast, colorectal, and ovarian) after treatment with the DNA methyltransferase inhibitor 5-azacitidin...
ORGANISM(S): Homo sapiens 
2014-05-08 | E-GEOD-57342 | biostudies-arrayexpress
GenomicsDnmt2-dependent methylomes lack biologically relevant DNA methylation patterns [Drosophila melanogaster]
Dnmt2 is a widely conserved protein, which is closely related to eukaryotic DNA methyltransferases. However, Dnmt2 shows a robust tRNA methyltransferase activity and only limited activity towards DNA. Interestingly, a recent study has provided evidence for a biologically important function of Dnmt2-...
ORGANISM(S): Drosophila melanogaster 
2013-05-06 | E-GEOD-39996 | biostudies-arrayexpress
GenomicsDnmt2-dependent methylomes lack biologically relevant DNA methylation patterns [Schistosoma mansoni]
Dnmt2 is a widely conserved protein, which is closely related to eukaryotic DNA methyltransferases. However, Dnmt2 shows a robust tRNA methyltransferase activity and only limited activity towards DNA. Interestingly, a recent study has provided evidence for a biologically important function of Dnmt2-...
ORGANISM(S): Schistosoma mansoni 
2013-05-06 | E-GEOD-39997 | biostudies-arrayexpress
GenomicsDNA Methyltransferase inhibition reverses epigenetically embedded phenotypes in lung cancer preferentially affecting Polycomb target genes
Cancer cell phenotypes are partially determined by epigenetic specifications such as DNA methylation. Metastasis development is a late event in cancerogenesis and might be associated with epigenetic alterations. Here, we analyzed genome wide DNA methylation changes that were associated with pro-meta...
ORGANISM(S): Homo sapiens 
2013-12-18 | E-GEOD-44390 | biostudies-arrayexpress
ProteomicsRPL40 methyltransferase discovery and characterisation
The eukaryotic ribosome is highly modified by protein methylation, yet many of the responsible methyltransferases remain unknown. Here we have identified SMYD5 as a ribosomal protein methyltransferase that catalyses trimethylation of RPL40 at lysine 22. Through a systematic mass spectrometry-based a...
ORGANISM(S): Homo Sapiens 
PXD056489 | panorama
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