Results 11 to 20 of about 397,235 (339)
In search of lost introns [PDF]
Bioinformatics, 2007 Many fundamental questions concerning the emergence and subsequent evolution of eukaryotic exon-intron organization are still unsettled. Genome-scale comparative studies, which can shed light on crucial aspects of eukaryotic evolution, require adequate ...
Adachi +53 more
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Plant intron sequences: evidence for distinct groups of introns [PDF]
Nucleic Acids Research, 1988 In vivo and in vitro RNA splicing experiments have demonstrated that the intron splicing machineries are not interchangeable in all organisms. These differences have prevented the efficient in vivo expression of monocot genes containing introns in dicot plants and the in vitro excision of some plant introns in HeLa cell in vitro splicing extracts.
Brian A. Hanley, M. A. Schuler
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Frontiers in Genetics, 2012 The intron-exon architecture of many eukaryotic genes raises the intriguing question of whether this unique organization serves any function, or is it simply a result of the spread of functionless introns in eukaryotic genomes. In this review, we show that introns in contemporary species fulfill a broad spectrum of functions, and are involved in ...
Liran eCarmel +2 more
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Introns: The Functional Benefits of Introns in Genomes [PDF]
Genomics & Informatics, 2015 The intron has been a big biological mystery since it was first discovered in several aspects. First, all of the completely sequenced eukaryotes harbor introns in the genomic structure, whereas no prokaryotes identified so far carry introns. Second, the amount of total introns varies in different species. Third, the length and number of introns vary in
Bong Seok Jo, Sun Shim Choi
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Molecular Biotechnology, 2011 Eukaryotic gene expression relies on several complex molecular machineries that act in a highly coordinated fashion. These machineries govern all the different steps of mRNA maturation, from gene transcription and pre-mRNA processing in the nucleus to the export of the mRNA to the cytoplasm and its translation.
Sergio Tisminetzky +3 more
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Intron “sliding” and the diversity of intron positions [PDF]
Proceedings of the National Academy of Sciences, 1997 Alignments of homologous genes typically reveal a great diversity of intron locations, far more than could fit comfortably in a single gene. Thus, a minority of these intron positions could be inherited from a single ancestral gene, but the larger share must be attributed to subsequent events of intron gain or intron “sliding” (movement from one ...
Arlin Stoltzfus +3 more
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Rescue of splicing-mediated intron loss maximizes expression in lentiviral vectors containing the human ubiquitin C promoter. [PDF]
, 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
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The role of mutation rate variation and genetic diversity in the architecture of human disease [PDF]
, 2013 Background We have investigated the role that the mutation rate and the structure of genetic variation at a locus play in determining whether a gene is involved in disease.
A Hodgkinson +29 more
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Intronization, de-intronization and intron sliding are rare in Cryptococcus [PDF]
BMC Evolutionary Biology, 2009 Eukaryotic pre-mRNA gene transcripts are processed by the spliceosome to remove portions of the transcript, called spliceosomal introns. The spliceosome recognizes intron boundaries by the presence of sequence signals (motifs) contained in the actual transcript, thus sequence changes in the genome that affect existing splicing signals or create new ...
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Frontiers in Microbiology, 2020 Phallus indusiatus and Phallus echinovolvatus are edible bamboo mushrooms with pharmacological properties. We sequenced, assembled, annotated, and compared the mitogenomes of these species.
Cheng Chen +10 more
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