Results 21 to 30 of about 716,957 (263)

DNA methylation regulator-mediated modification pattern defines tumor microenvironment immune infiltration landscape in colon cancer

open access: yesFrontiers in Genetics, 2022
Emerging evidence implies a non-negligible role of DNA methylation in tumor immunity, however, its comprehensive impact on tumor microenvironment (TME) formation and immune activation remains unclear.
Shijin Yuan   +4 more
doaj   +1 more source

Reassembling a cannon in the DNA defense arsenal: Genetics of StySA, a BREX phage exclusion system in Salmonella lab strains.

open access: yesPLoS Genetics, 2022
Understanding mechanisms that shape horizontal exchange in prokaryotes is a key problem in biology. A major limit on DNA entry is imposed by restriction-modification (RM) processes that depend on the pattern of DNA modification at host-specified sites ...
Julie Zaworski   +6 more
doaj   +1 more source

Playing TETris with DNA modifications [PDF]

open access: yesThe EMBO Journal, 2014
Methylation of the fifth carbon of cytosine was the first epigenetic modification to be discovered in DNA. Recently, three new DNA modifications have come to light: hydroxymethylcytosine, formylcytosine, and carboxylcytosine, all generated by oxidation of methylcytosine by Ten Eleven Translocation (TET) enzymes.
Delatte, Benjamin   +2 more
openaire   +3 more sources

DNA Modifications and Neurological Disorders [PDF]

open access: yesNeurotherapeutics, 2013
Mounting evidence has recently underscored the importance of DNA methylation in normal brain functions. DNA methylation machineries are responsible for dynamic regulation of methylation patterns in discrete brain regions. In addition to methylation of cytosines in genomic DNA (5-methylcytosine; 5mC), other forms of modified cytosines, such as 5 ...
Yi-Lan, Weng   +4 more
openaire   +2 more sources

Regulation of dndB Gene Expression in Streptomyces lividans

open access: yesFrontiers in Microbiology, 2018
DNA sulfur modification is a unique modification occurring in the sugar-phosphate backbone of DNA, with a nonbridging oxygen atom substituted with sulfur in a sequence-specific and Rp stereo-specific manner.
Daofeng Dai   +4 more
doaj   +1 more source

DNA methylation regulator-mediated modification patterns and tumor microenvironment characterization in gastric cancer

open access: yesMolecular Therapy: Nucleic Acids, 2021
Growing evidence implies a link between DNA methylation and tumor immunity/immunotherapy. However, the global influence of DNA methylation on the characteristics of the tumor microenvironment and the efficacy of immunotherapy remains to be clarified.
Qi Meng   +10 more
doaj   +1 more source

DNA Backbone Sulfur-Modification Expands Microbial Growth Range under Multiple Stresses by its anti-oxidation function

open access: yesScientific Reports, 2017
DNA phosphorothioate (PT) modification is a sulfur modification on the backbone of DNA introduced by the proteins DndA-E. It has been detected within many bacteria isolates and metagenomic datasets, including human pathogens, and is considered to be ...
Yan Yang   +9 more
doaj   +1 more source

Computational study of associations between histone modification and protein-DNA binding in yeast genome by integrating diverse information

open access: yesBMC Genomics, 2011
Background In parallel with the quick development of high-throughput technologies, in vivo (vitro) experiments for genome-wide identification of protein-DNA interactions have been developed.
Wang Junbai
doaj   +1 more source

Identifying DNA methylation in a nanochannel

open access: yesScience and Technology of Advanced Materials, 2016
DNA methylation is a stable epigenetic modification, which is well known to be involved in gene expression regulation. In general, however, analyzing DNA methylation requires rather time consuming processes (24–96 h) via DNA replication and protein ...
Xiaoyin Sun   +8 more
doaj   +1 more source

Functions of PARylation in DNA Damage Repair Pathways

open access: yesGenomics, Proteomics & Bioinformatics, 2016
Protein poly ADP-ribosylation (PARylation) is a widespread post-translational modification at DNA lesions, which is catalyzed by poly(ADP-ribose) polymerases (PARPs).
Huiting Wei, Xiaochun Yu
doaj   +1 more source

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