Results 61 to 70 of about 364,363 (199)

Polymorphism of the rps16 gene intron in Malus Mill. and related Rosaceae Juss. species

open access: yesВавиловский журнал генетики и селекции, 2017
The intron of the chloroplast rps16 gene encoding ribosomal protein 16S belongs to group II introns, which have the capacity to self-splice. The sequence of this intron may be quite polymorphic and is widely used for molecular-genetic studies of ...
M. A. Filyushin, K. V. Boris
doaj   +1 more source

The role of transposable elements in the evolution of non-mammalian vertebrates and invertebrates [PDF]

open access: yesGenome Biology 2010, 11:R59, 2010
Background: Transposable elements (TEs) have played an important role in the diversification and enrichment of mammalian transcriptomes through various mechanisms such as exonization and intronization (the birth of new exons/introns from previously intronic/exonic sequences, respectively), and insertion into first and last exons.
arxiv   +1 more source

Chloroplast Genomes of the Green-Tide Forming Alga Ulva compressa: Comparative Chloroplast Genomics in the Genus Ulva (Ulvophyceae, Chlorophyta)

open access: yesFrontiers in Marine Science, 2021
To understand the evolution of Ulva chloroplast genomes at intraspecific and interspecific levels, in this study, three complete chloroplast genomes of Ulva compressa Linnaeus were sequenced and compared with the available Ulva cpDNA data.
Feng Liu   +3 more
doaj   +1 more source

Complete mitochondrial genome of the harmful algal bloom species Pseudo-nitzschia delicatissima (Bacillariophyceae, Bacillariophyta)

open access: yesMitochondrial DNA. Part B. Resources, 2021
Pseudo-nitzschia is an important genus of diatoms with many species capable of inducing harmful algae blooms (HABs) in coastal and oceanic waters, some of which produce the toxin domoic acid (DA), a neurotoxin that causes amnesic shellfish poisoning (ASP)
Ziyan He   +6 more
doaj   +1 more source

Mechanically probing the folding pathway of single RNA molecules [PDF]

open access: yesBiophys. J. 84 (2003) 2831-2840, 2002
We study theoretically the denaturation of single RNA molecules by mechanical stretching, focusing on signatures of the (un)folding pathway in molecular fluctuations. Our model describes the interactions between nucleotides by incorporating the experimentally determined free energy rules for RNA secondary structure, while exterior single stranded ...
arxiv   +1 more source

Dispersion of the RmInt1 group II intron in the Sinorhizobium meliloti genome upon acquisition by conjugative transfer [PDF]

open access: yes, 2006
RmInt1 is a self-splicing and mobile group II intron initially identified in the bacterium Sinorhizobium meliloti, which encodes a reverse transcriptase–maturase (Intron Encoded Protein, IEP) lacking the C-terminal DNA binding (D) and DNA endonuclease ...
Jiménez-Zurdo, José I.   +4 more
core   +2 more sources

Exons, introns and DNA thermodynamics [PDF]

open access: yesPhys. Rev. Lett. 94, 178101 (2005), 2004
The genes of eukaryotes are characterized by protein coding fragments, the exons, interrupted by introns, i.e. stretches of DNA which do not carry any useful information for the protein synthesis. We have analyzed the melting behavior of randomly selected human cDNA sequences obtained from the genomic DNA by removing all introns. A clear correspondence
arxiv   +1 more source

The largest reservoir of mitochondrial introns is a relic of an ancestral split gene [PDF]

open access: yes, 2010
In eukaryotes, introns are located in nuclear and organelle genes from several kingdoms (ref. 1-4). Large introns (0.1 to 5 kbp) are frequent in mitochondrial genomes of plant and fungi (ref.
Cyril Ferandon   +5 more
core   +1 more source

Exon sequence requirements for excision in vivo of the bacterial group II intron RmInt1 [PDF]

open access: yes, 2011
Background Group II intron splicing proceeds through two sequential transesterification reactions in which the 5' and 3'-exons are joined together and the lariat intron is released.
A de Lencastre   +25 more
core   +4 more sources

Global Regulators Orchestrate Group II Intron Retromobility [PDF]

open access: yesMolecular Cell, 2009
Group II introns are hypothesized to share common ancestry with both nuclear spliceosomal introns and retrotransposons, which collectively occupy the majority of genome space in higher eukaryotes. These phylogenetically diverse introns are mobile retroelements that move through an RNA intermediate.
Marlene Belfort   +6 more
openaire   +3 more sources

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