Results 11 to 20 of about 413,811 (335)
In Cryptococcus neoformans, nearly all genes are interrupted by small introns. In recent years, genome annotation and genetic analysis have illuminated the major roles these introns play in the biology of this pathogenic yeast.
Guilhem Janbon
doaj +6 more sources
In search of lost introns [PDF]
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
core +4 more sources
DNA topoisomerases participate in fragility of the oncogene RET [PDF]
Fragile site breakage was previously shown to result in rearrangement of the RET oncogene, resembling the rearrangements found in thyroid cancer. Common fragile sites are specific regions of the genome with a high susceptibility to DNA breakage under ...
A Ganguly +86 more
core +28 more sources
Plant intron sequences: evidence for distinct groups of introns [PDF]
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
openalex +4 more sources
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
openaire +4 more sources
Introns: The Functional Benefits of Introns in Genomes [PDF]
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
openaire +4 more sources
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
openaire +3 more sources
Intron “sliding” and the diversity of intron positions [PDF]
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
openaire +3 more sources
Systematic Identification and Functional Validation of New snoRNAs in Human Muscle Progenitors
Small non-coding RNAs (sncRNAs) represent an important class of regulatory RNAs involved in the regulation of transcription, RNA splicing or translation.
Baptiste Bogard +2 more
doaj +1 more source
Rescue of splicing-mediated intron loss maximizes expression in lentiviral vectors containing the human ubiquitin C promoter. [PDF]
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

