Results 11 to 20 of about 144,700 (293)

Introns: The Functional Benefits of Introns in Genomes [PDF]

open access: yesGenomics & 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.
Bong-Seok Jo, Sun Shim Choi
doaj   +4 more sources

Introns in Cryptococcus [PDF]

open access: yesMemorias do Instituto Oswaldo Cruz, 2018
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

The function of introns [PDF]

open access: yesFrontiers 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.
Michal eChorev, Liran eCarmel
core   +4 more sources

The origin of introns and their role in eukaryogenesis: a compromise solution to the introns-early versus introns-late debate?

open access: yesBiology Direct, 2006
Background Ever since the discovery of 'genes in pieces' and mRNA splicing in eukaryotes, origin and evolution of spliceosomal introns have been considered within the conceptual framework of the 'introns early' versus 'introns late' debate.
Koonin Eugene V
doaj   +2 more sources

Evolutionary dynamics of U12-type spliceosomal introns [PDF]

open access: yesBMC Evolutionary Biology, 2010
Background Many multicellular eukaryotes have two types of spliceosomes for the removal of introns from messenger RNA precursors. The major (U2) spliceosome processes the vast majority of introns, referred to as U2-type introns, while the minor (U12 ...
Mount Stephen M   +3 more
doaj   +2 more sources

Identification of human short introns. [PDF]

open access: yesPLoS ONE, 2017
Canonical pre-mRNA splicing requires snRNPs and associated splicing factors to excise conserved intronic sequences, with a minimum intron length required for efficient splicing.
Emmanuel L Abebrese   +14 more
doaj   +2 more sources

Group I introns in tRNA genes of Patescibacteria [PDF]

open access: yesmSystems
Introns are generally considered rare in bacteria, yet they are frequently observed in Patescibacteria, which have highly reduced genomes. To systematically explore the diversity, roles, and evolution of introns in Patescibacteria, we first focused on ...
Yuna Nakagawa   +3 more
doaj   +2 more sources

Organellar Introns in Fungi, Algae, and Plants

open access: yesCells, 2021
Introns are ubiquitous in eukaryotic genomes and have long been considered as ‘junk RNA’ but the huge energy expenditure in their transcription, removal, and degradation indicate that they may have functional significance and can offer evolutionary ...
Jigeesha Mukhopadhyay, Georg Hausner
doaj   +2 more sources

Introns

open access: yes, 2012
Counts of trimmed 36 bp reads that mapped uniquely to consolidated introns of genes annotated in RefSeq for 136 ...
Sinicropi, Dominick   +33 more
core   +2 more sources

Distribution of introns in fungal histone genes. [PDF]

open access: yesPLoS ONE, 2011
Saccharomycotina and Taphrinomycotina lack intron in their histone genes, except for an intron in one of histone H4 genes of Yarrowia lipolytica. On the other hand, Basidiomycota and Perizomycotina have introns in their histone genes.
Choong-Soo Yun, Hiromi Nishida
doaj   +2 more sources

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