Results 31 to 40 of about 2,971,475 (254)

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

A mutant of uracil DNA glycosylase that distinguishes between cytosine and 5-methylcytosine [PDF]

open access: yes, 2014
We demonstrate that a mutant of uracil DNA glycosylase (N123D:L191A) distinguishes between cytosine and methylcytosine. Uracil DNA glycosylase (UDG) efficiently removes uracil from DNA in a reaction in which the base is flipped into the enzyme’s active ...
Fox, Keith R.   +11 more
core   +2 more sources

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

Zinc finger recombinases with adaptable DNA sequence specificity [PDF]

open access: yes, 2011
Site-specific recombinases have become essential tools in genetics and molecular biology for the precise excision or integration of DNA sequences. However, their utility is currently limited to circumstances where the sites recognized by the recombinase ...
Proudfoot, C.   +19 more
core   +1 more source

Phosphorylation events surrounding the DNA damage response in "Saccharomyces cerevisiae" [PDF]

open access: yes, 2007
Protein phosphorylation mediated by checkpoint kinases is crucial for the cellular response to DNA damage. The sensor kinases Mec1 and Tel1 initiate the checkpoint signaling cascade by directly activating the checkpoint effector kinase Rad53.
Schleker, Thomas Andreas
core   +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

VEZF1 elements mediate protection from DNA methylation [PDF]

open access: yes, 2010
There is growing consensus that genome organization and long-range gene regulation involves partitioning of the genome into domains of distinct epigenetic chromatin states.
Gowher Humaira   +21 more
core   +2 more sources

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