Results 71 to 80 of about 142,373 (137)

Triple-Helical DNA in Drosophila Heterochromatin

open access: yesCells, 2018
Polynucleotide chains obeying Watson-Crick pairing are apt to form non-canonical complexes such as triple-helical nucleic acids. From early characterization in vitro, their occurrence in vivo has been strengthened by increasing evidence, although most ...
Eduardo Gorab
doaj   +1 more source

Single cell analysis reveals the involvement of the long non-coding RNA Pvt1 in the modulation of muscle atrophy and mitochondrial network [PDF]

open access: yes, 2019
Long non-coding RNAs (lncRNAs) are emerging as important players in the regulation of several aspects of cellular biology. For a better comprehension of their function, it is fundamental to determine their tissue or cell specificity and to identify their
Alessio, Enrico   +13 more
core   +1 more source

Comparison of DNA methylation levels of repetitive loci during bovine development

open access: yesBMC Proceedings, 2011
Background DNA methylation of cytosine residues in CpG dinucleotide controls gene expression and dramatically changes during development. Its pattern is disrupted in cloned animals suggesting incomplete reprogramming during somatic cell nuclear transfer (
Kaneda Masahiro   +3 more
doaj   +1 more source

Chromosomal distribution of the As51 satellite DNA in two species complexes of the genus Astyanax (Pisces, Characidae)

open access: yesGenetics and Molecular Biology, 2006
The chromosomal localization of the As51 satellite DNA was identified by fluorescent in situ hybridization (FISH) in specimens of the characid fish Astyanax scabripinnis and Astyanax fasciatus, which are considered species complexes because of their ...
Luciano Douglas dos Santos Abel   +2 more
doaj   +1 more source

How to improve the early diagnosis of Trypanosoma cruzi infection: Relationship between validated conventional diagnosis and quantitative DNA amplification in congenitally infected children [PDF]

open access: yes, 2013
BACKGROUND: According to the Chagas congenital transmission guides, the diagnosis of infants, born to Trypanosoma cruzi infected mothers, relies on the detection of parasites by INP micromethod, and/or the persistence of T. cruzi specific antibody titers
Bua, Jacqueline Elena   +7 more
core   +3 more sources

Extrachromosomal circles of satellite repeats and 5S ribosomal DNA in human cells

open access: yesMobile DNA, 2010
Background Extrachomosomal circular DNA (eccDNA) is ubiquitous in eukaryotic organisms and was detected in every organism tested, including in humans. A two-dimensional gel electrophoresis facilitates the detection of eccDNA in preparations of genomic ...
Cohen Sarit   +3 more
doaj   +1 more source

DNA methylation and DNA methyltransferases [PDF]

open access: yes, 2017
The prevailing views as to the form, function, and regulation of genomic methylation patterns have their origin many years in the past, at a time when the structure of the mammalian genome was only dimly perceived, when the number of protein-encoding ...
Bestor, Timothy H   +3 more
core   +3 more sources

Expression of DNA Methyltransferase 3B Isoforms Is Associated with DNA Satellite 2 Hypomethylation and Clinical Prognosis in Advanced High-Grade Serous Ovarian Carcinoma. [PDF]

open access: yesInt J Mol Sci, 2022
Del Castillo Falconi VM   +8 more
europepmc   +1 more source

Multi-tissue characterization of the constitutive heterochromatin proteome in Drosophila identifies a link between satellite DNA organization and transposon repression.

open access: yesPLoS Biology
Noncoding satellite DNA repeats are abundant at the pericentromeric heterochromatin of eukaryotic chromosomes. During interphase, sequence-specific DNA-binding proteins cluster these repeats from multiple chromosomes into nuclear foci known as ...
Ankita Chavan   +12 more
doaj   +1 more source

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