[HTML][HTML] R-loop formation is a distinctive characteristic of unmethylated human CpG island promoters

PA Ginno, PL Lott, HC Christensen, I Korf, F Chédin - Molecular cell, 2012 - cell.com
CpG islands (CGIs) function as promoters for approximately 60% of human genes. Most of
these elements remain protected from CpG methylation, a prevalent epigenetic modification …

[HTML][HTML] Epigenetic conservation at gene regulatory elements revealed by non-methylated DNA profiling in seven vertebrates

HK Long, D Sims, A Heger, NP Blackledge, C Kutter… - elife, 2013 - elifesciences.org
Two-thirds of gene promoters in mammals are associated with regions of non-methylated
DNA, called CpG islands (CGIs), which counteract the repressive effects of DNA methylation …

[HTML][HTML] Primate CpG islands are maintained by heterogeneous evolutionary regimes involving minimal selection

NM Cohen, E Kenigsberg, A Tanay - Cell, 2011 - cell.com
Mammalian CpG islands are key epigenomic elements that were first characterized
experimentally as genomic fractions with low levels of DNA methylation. Currently, CpG …

DNA methylation of intragenic CpG islands depends on their transcriptional activity during differentiation and disease

DM Jeziorska, RJS Murray… - Proceedings of the …, 2017 - National Acad Sciences
The human genome contains∼ 30,000 CpG islands (CGIs). While CGIs associated with
promoters nearly always remain unmethylated, many of the∼ 9,000 CGIs lying within gene …

[HTML][HTML] CpG islands–'a rough guide'

RS Illingworth, AP Bird - FEBS letters, 2009 - Elsevier
Mammalian genomes are punctuated by DNA sequences containing an atypically high
frequency of CpG sites termed CpG islands (CGIs). CGIs generally lack DNA methylation …

Structure, function and evolution of CpG island promoters

F Antequera - Cellular and Molecular Life Sciences CMLS, 2003 - Springer
Mammalian promoters belong to two different categories in terms of base composition and
DNA methylation. In humans and mice, approximately 60% of all promoters colocalize with …

CpG islands in vertebrate genomes

M Gardiner-Garden, M Frommer - Journal of molecular biology, 1987 - Elsevier
Although vertebrate DNA is generally depleted in the dinucleotide CpG, it has recently been
shown that some vertebrate genes contain CpG islands, regions of DNA with a high G+ C …

[HTML][HTML] CpG islands as genomic footprints of promoters that are associated with replication origins

F Antequera, A Bird - Current Biology, 1999 - cell.com
The primary target for DNA methylation in mammalian genomes is cytosine in the
dinucleotide CpG. High densities of CpG dinucleotides are found in CpG islands, but …

CG dinucleotides enhance promoter activity independent of DNA methylation

D Hartl, AR Krebs, RS Grand, T Baubec, L Isbel… - Genome …, 2019 - genome.cshlp.org
Most mammalian RNA polymerase II initiation events occur at CpG islands, which are rich in
CpGs and devoid of DNA methylation. Despite their relevance for gene regulation, it is …

ZF-CxxC domain-containing proteins, CpG islands and the chromatin connection

HK Long, NP Blackledge… - Biochemical Society …, 2013 - portlandpress.com
Vertebrate DNA can be chemically modified by methylation of the 5 position of the cytosine
base in the context of CpG dinucleotides. This modification creates a binding site for MBD …