Results 21 to 30 of about 259,719 (301)

Cigarette smoke condensate and individual constituents modulate DNA methyltransferase expression in human liver cells

open access: yesSAGE Open Medicine, 2015
Objectives: Previous studies found higher expression levels of DNA methyltransferase 1 in liver samples from smokers compared to those from non-smokers. In contrast, expression levels of DNA methyltransferase 3a and DNA methyltransferase 3b were similar ...
Yongmei Xiao   +4 more
doaj   +1 more source

Targeted DNA methylation using an artificially bisected M.HhaI fused to zinc fingers. [PDF]

open access: yesPLoS ONE, 2012
Little is known about the effects of single DNA methylation events on gene transcription. The ability to direct the methylation toward a single unique site within a genome would have broad use as a tool to study the effects of specific epigenetic changes
Brian Chaikind   +3 more
doaj   +1 more source

Coevolution of the CDCA7-HELLS ICF-related nucleosome remodeling complex and DNA methyltransferases

open access: yeseLife, 2023
5-Methylcytosine (5mC) and DNA methyltransferases (DNMTs) are broadly conserved in eukaryotes but are also frequently lost during evolution. The mammalian SNF2 family ATPase HELLS and its plant ortholog DDM1 are critical for maintaining 5mC. Mutations in
Hironori Funabiki   +4 more
doaj   +1 more source

DNA methylation impacts gene expression and ensures hypoxic survival of Mycobacterium tuberculosis. [PDF]

open access: yesPLoS Pathogens, 2013
DNA methylation regulates gene expression in many organisms. In eukaryotes, DNA methylation is associated with gene repression, while it exerts both activating and repressive effects in the Proteobacteria through largely locus-specific mechanisms.
Scarlet S Shell   +6 more
doaj   +1 more source

Retinoblastoma makes its mark on imprinting in plants [PDF]

open access: yes, 2008
Genomic imprinting results in the preferential expression of alleles from either the maternal or paternal chromosomes. This epigenetic process occurs in embryonic and extra-embryonic (placental) tissues of mammals, but only in the extra-embryonic ...
Liliana M Costa   +29 more
core   +2 more sources

Hypoxia/reoxygenation attenuates migration and invasion of human extracellular villus trophoblast cells via DNA methyltransferase pathway

open access: yes陆军军医大学学报, 2023
Objective To explore the regulative mechanism of hypoxia/reoxygen (H/R) for invasion ability of extravillous trophoblast (EVT). Methods Immortalized human EVT cell line HTR-8/SVneo in early pregnancy, primary EVT cells isolated from the villi of placenta
HU Sichen   +5 more
doaj   +1 more source

ATXR5 and ATXR6 are H3K27 monomethyltransferases required for chromatin structure and gene silencing. [PDF]

open access: yes, 2009
Constitutive heterochromatin in Arabidopsis thaliana is marked by repressive chromatin modifications, including DNA methylation, histone H3 dimethylation at Lys9 (H3K9me2) and monomethylation at Lys27 (H3K27me1).
Bernatavichute, Yana V   +9 more
core   +1 more source

The nucleolar RNA methyltransferase Misu (NSun2) is required for mitotic spindle stability [PDF]

open access: yes, 2009
Myc-induced SUN domain–containing protein (Misu or NSun2) is a nucleolar RNA methyltransferase important for c-Myc–induced proliferation in skin, but the mechanisms by which Misu contributes to cell cycle progression are unknown.
Shobbir Hussain   +49 more
core   +1 more source

Transcription factor LSF-DNMT1 complex dissociation by FQI1 leads to aberrant DNA methylation and gene expression [PDF]

open access: yes, 2016
The transcription factor LSF is highly expressed in hepatocellular carcinoma (HCC) and promotes oncogenesis. Factor quinolinone inhibitor 1 (FQI1), inhibits LSF DNA-binding activity and exerts anti-proliferative activity.
Chin, Hang Gyeong   +6 more
core   +1 more source

Alteration in the expression of MGMT and RUNX3 due to non-CpG promoter methylation and their correlation with different risk factors in esophageal cancer patients

open access: yesTumor Biology, 2017
Promoter methylation reflects in the inactivation of different genes like O 6 -methylguanine-DNA methyltransferase DNA repair gene and runt-related transcription factor 3, a known tumor suppressor gene in various cancers such as esophageal cancer.
Snigdha Saikia   +9 more
doaj   +1 more source

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