Results 31 to 40 of about 413,811 (335)
Frontiers in Molecular Biosciences, 2021 An evolutionarily conserved feature of introns is their ability to enhance expression of genes that harbor them. Introns have been shown to regulate gene expression at the transcription and post-transcription level.
Katherine Dwyer +3 more
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Taxonomy of introns and the evolution of minor introns [PDF]
Nucleic Acids ResearchAbstract Classification of introns, which is crucial to understanding their evolution and splicing, has historically been binary and has resulted in the naming of major and minor introns that are spliced by their namesake spliceosome. However, a broad range of intron consensus sequences exist, leading us to here reclassify introns as ...
Anouk M Olthof +9 more
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Molecular Cell, 2019 Parenteau et al. (2019) and Morgan et al. (2019) showed that a subset of introns can work as non-coding RNAs that trap the spliceosome and decrease global splicing upon nutrient depletion in yeast, providing a new example of the functionality of introns, molecules that were previously assumed to be useless.
Sebastian Kadener, Michela Zaffagni
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An overview of RNA splicing and functioning of splicing factors in land plant chloroplasts
RNA Biology, 2022 RNA splicing refers to a process by which introns of a pre-mRNA are excised and the exons at both ends are joined together. Chloroplast introns are inherently self-splicing ribozymes, but over time, they have lost self-splicing ability due to the ...
Xuemei Wang +4 more
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Novel Genomic and Evolutionary Perspective of Cyanobacterial tRNAs
Frontiers in Genetics, 2017 Transfer RNA (tRNA) plays a central role in protein synthesis and acts as an adaptor molecule between an mRNA and an amino acid. A tRNA has an L-shaped clover leaf-like structure and contains an acceptor arm, D-arm, D-loop, anti-codon arm, anti-codon ...
Tapan K. Mohanta +3 more
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Intron exclusion and the mystery of intron loss [PDF]
FEBS Letters, 2006 Mechanisms for loss and gain of introns are elusive. Reported here is a new pattern of intron loss which features a random loss of a single intron in a multiple‐intron gene with its neighboring introns remained, which process is defined as intron exclusion.
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Veterinary Sciences, 2020 DNA methylation of different gene components, including different exons and introns, or different lengths of exons and introns is associated with differences in gene expression.
Xiao Wang, Haja N. Kadarmideen
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Organization and sequence of the gene encoding the human acrosin-trypsin inhibitor (HUSI-II) [PDF]
, 1993 A complete cDNA encoding the acrosin-trypsin inhibitor, HUSI-II, was used as a probe to isolate genomic clones from a human placenta library. Three clones which cover the entire HUSI-II gene were isolated and characterized.
Abelson +28 more
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Intron-mediated enhancement is not limited to introns [PDF]
, 2018 AbstractCertain introns strongly increase mRNA accumulation by a poorly understood mechanism known as Intron-Mediated Enhancement (IME). Introns that boost expression by IME have no effect when located upstream of or more than ~1 Kb downstream from the start of transcription.
Gallegos, Jenna E, Rose, Alan B
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Intron or no intron: a matter for nuclear pore complexes [PDF]
Nucleus, 2015 Nuclear pore complexes (NPCs) have been shown to regulate distinct steps of the gene expression process, from transcription to mRNA export. In particular, mRNAs expressed from intron-containing genes are surveyed by a specific NPC-dependent quality control pathway ensuring that unspliced mRNAs are retained within the nucleus.
Benoit Palancade, Amandine Bonnet
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