Results 71 to 80 of about 292,600 (397)

Complete mitogenome of the streptophyte green alga Coleochaete scutata (Coleochaetophyceae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
We have sequenced the mitogenome of Coleochaete scutata strain SAG 110.80M. This mitogenome is the largest among the streptophyte green algae examined to date.
Monique Turmel   +2 more
doaj   +1 more source

Mammalian Introns: When the Junk Generates Molecular Diversity

open access: yesInternational Journal of Molecular Sciences, 2015
Introns represent almost half of the human genome, yet their vast majority is eliminated from eukaryotic transcripts through RNA splicing. Nevertheless, they feature key elements and functions that deserve further interest.
F. Hubé, C. Francastel
semanticscholar   +1 more source

Comparative Genomics Analysis of Ciliates Provides Insights on the Evolutionary History Within “Nassophorea–Synhymenia–Phyllopharyngea” Assemblage

open access: yesFrontiers in Microbiology, 2019
Ciliated protists (ciliates) are widely used for investigating evolution, mostly due to their successful radiation after their early evolutionary branching.
Bo Pan   +8 more
doaj   +1 more source

Analysis of intron sequence features associated with transcriptional regulation in human genes. [PDF]

open access: yesPLoS ONE, 2012
Although some preliminary work has revealed the potential transcriptional regulatory function of the introns in eukaryotes, additional evidences are needed to support this conjecture.
Huimin Li, Dan Chen, Jing Zhang
doaj   +1 more source

miRNA‐29 regulates epidermal and mesenchymal functions in skin repair

open access: yesFEBS Letters, EarlyView.
miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan   +10 more
wiley   +1 more source

Defining the location of promoter-associated R-loops at near-nucleotide resolution using bisDRIP-seq

open access: yeseLife, 2017
R-loops are features of chromatin consisting of a strand of DNA hybridized to RNA, as well as the expelled complementary DNA strand. R-loops are enriched at promoters where they have recently been shown to have important roles in modifying gene ...
Jason G Dumelie, Samie R Jaffrey
doaj   +1 more source

Homing endonucleases from mobile group I introns: discovery to genome engineering

open access: yesMobile DNA, 2014
Homing endonucleases are highly specific DNA cleaving enzymes that are encoded within genomes of all forms of microbial life including phage and eukaryotic organelles. These proteins drive the mobility and persistence of their own reading frames.
B. Stoddard
semanticscholar   +1 more source

Rescue of splicing-mediated intron loss maximizes expression in lentiviral vectors containing the human ubiquitin C promoter. [PDF]

open access: yes, 2014
Lentiviral vectors almost universally use heterologous internal promoters to express transgenes. One of the most commonly used promoter fragments is a 1.2-kb sequence from the human ubiquitin C (UBC) gene, encompassing the promoter, some enhancers, first
Cooper, Aaron R   +3 more
core   +1 more source

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Dynamics of genomic innovation in the unicellular ancestry of animals

open access: yeseLife, 2017
Which genomic innovations underpinned the origin of multicellular animals is still an open debate. Here, we investigate this question by reconstructing the genome architecture and gene family diversity of ancestral premetazoans, aiming to date the ...
Xavier Grau-Bové   +6 more
doaj   +1 more source

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