Results 31 to 40 of about 16,020 (245)

Distinct Traits of Structural and Regulatory Evolutional Conservation of Human Genes with Specific Focus on Major Cancer Molecular Pathways

open access: yesCells, 2023
The evolution of protein-coding genes has both structural and regulatory components. The first can be assessed by measuring the ratio of non-synonymous to synonymous nucleotide substitutions.
Galina Zakharova   +19 more
doaj   +1 more source

Sequence Motif Analysis of PRDM9 and Short Inverted Repeats Suggests Their Contribution to Human Microdeletion and Microduplication Syndromes

open access: yesBioMedInformatics, 2023
Holliday junctions are the first recognized templates of legitimate recombination. Their prime physiological role is meiotic homologous recombination, resulting in rearrangements of the genetic material.
Paris Ladias   +6 more
doaj   +1 more source

DGR mutagenic transposition occurs via hypermutagenic reverse transcription primed by nicked template RNA. [PDF]

open access: yes, 2017
Diversity-generating retroelements (DGRs) are molecular evolution machines that facilitate microbial adaptation to environmental changes. Hypervariation occurs via a mutagenic retrotransposition process from a template repeat (TR) to a variable repeat ...
Guo, Huatao   +6 more
core   +3 more sources

Domesticated LTR-Retrotransposon gag-Related Gene (Gagr) as a Member of the Stress Response Network in Drosophila

open access: yesLife, 2022
The most important sources of new components of genomes are transposable elements, which can occupy more than half of the nucleotide sequence of the genome in higher eukaryotes.
Lidia Nefedova   +2 more
doaj   +1 more source

Occurrence of LINE, gypsy-like, and copia-like retrotransposons in the clonally propagated sweet potato (Ipomoea batatas L.) [PDF]

open access: yes, 2011
Retrotransposons are a class of transposable elements that represent a major fraction of the repetitive DNA of most eukaryotes. Their abundance stems from their expansive replication strategies.
Dieters, Mark   +3 more
core   +2 more sources

A frequent SNP in TRIM5α strongly enhances the innate immune response against LINE-1 elements

open access: yesFrontiers in Immunology, 2023
The intracellular restriction factor TRIM5α inhibits endogenous LINE-1 retroelements. It induces innate immune signaling cascades upon sensing of cytoplasmic LINE-1 complexes, thereby underlining its importance for protecting the human genome from ...
Justine Lagisquet   +6 more
doaj   +1 more source

Retroviruses, retroelements and their restrictions [PDF]

open access: yesFrontiers in Microbiology, 2013
Human retroviruses, HIV and HTLV have been recognized as important pathogens because of their association with lethal diseases such as AIDS and ATL. Considerable resources and efforts have been directed at understanding the interaction between these retroviruses and their host which may provide clues as to how the infection can be controlled or ...
Koito, Atsushi, Ishizaka, Yukihito
openaire   +4 more sources

Transposon Reactivation in the Germline May Be Useful for Both Transposons and Their Host Genomes

open access: yesCells, 2020
Transposable elements (TEs) are long-term residents of eukaryotic genomes that make up a large portion of these genomes. They can be considered as perfectly fine members of genomes replicating with resident genes and being transmitted vertically to the ...
Stéphanie Maupetit-Mehouas   +1 more
doaj   +1 more source

Potential role of KRAB-ZFP binding and transcriptional states on DNA methylation of retroelements in human male germ cells

open access: yeseLife, 2022
DNA methylation, repressive histone modifications, and PIWI-interacting RNAs are essential for controlling retroelement silencing in mammalian germ lines. Dysregulation of retroelement silencing is associated with male sterility.
Kei Fukuda   +6 more
doaj   +1 more source

SERpredict: Detection of tissue- or tumor-specific isoforms generated through exonization of transposable elements [PDF]

open access: yes, 2007
Background: Transposed elements (TEs) are known to affect transcriptomes, because either new exons are generated from intronic transposed elements (this is called exonization), or the element inserts into the exon, leading to a new transcript.
Ast, Gil   +4 more
core   +3 more sources

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