Results 21 to 30 of about 317,196 (344)

The emergence and evolution of intron-poor and intronless genes in intron-rich plant gene families.

open access: yesThe Plant Journal, 2020
Eukaryotic genes can be classified into intronless (no introns), intron-poor (three or fewer introns per gene), or intron-rich. Early eukaryotic genes were mostly intron-rich, and their alternative splicing into multiple transcripts, giving rise to ...
Hui Liu   +4 more
semanticscholar   +1 more source

Intronization, de-intronization and intron sliding are rare in Cryptococcus [PDF]

open access: yesBMC 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 ...
openaire   +4 more sources

Using intron position conservation for homology-based gene prediction

open access: yesNucleic Acids Research, 2016
Annotation of protein-coding genes is very important in bioinformatics and biology and has a decisive influence on many downstream analyses. Homology-based gene prediction programs allow for transferring knowledge about protein-coding genes from an ...
J. Keilwagen   +5 more
semanticscholar   +1 more source

High-yield production of multiple O-methylated phenylpropanoids by the engineered Escherichia coli–Streptomyces cocultivation system

open access: yesMicrobial Cell Factories, 2019
Background O-Methylated phenylpropanoids, which are generally present in small amounts in plants, have improved or distinct biological activities and pharmacological properties as opposed to their unmethylated counterparts.
Heqing Cui   +6 more
doaj   +1 more source

Consistent inverse correlation between DNA methylation of the first intron and gene expression across tissues and species

open access: yesEpigenetics & Chromatin, 2018
DNA methylation is one of the main epigenetic mechanisms for the regulation of gene expression in eukaryotes. In the standard model, methylation in gene promoters has received the most attention since it is generally associated with transcriptional ...
Dafni Anastasiadi   +2 more
semanticscholar   +1 more source

O-GlcNAc regulates gene expression by controlling detained intron splicing

open access: yesbioRxiv, 2020
Intron detention in precursor RNAs serves to regulate expression of a substantial fraction of genes in eukaryotic genomes. How detained intron (DI) splicing is controlled is poorly understood.
Zhi-Wei Tan   +9 more
semanticscholar   +1 more source

Intron Mobility: Invasive introns [PDF]

open access: yesCurrent Biology, 1994
The evidence that introns in fungal and plant organellar DNAs are mobile genetic elements has strengthened significantly; like Shaw's cockney heroine, Eliza Doolittle, they cannot help but betray their origins.
openaire   +3 more sources

Craving for Introns [PDF]

open access: yesMolecular 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
openaire   +3 more sources

Global Characterization of Fungal Mitogenomes: New Insights on Genomic Diversity and Dynamism of Coding Genes and Accessory Elements

open access: yesFrontiers in Microbiology, 2021
Fungi comprise a great diversity of species with distinct ecological functions and lifestyles. Similar to other eukaryotes, fungi rely on interactions with prokaryotes and one of the most important symbiotic events was the acquisition of mitochondria ...
Paula L. C. Fonseca   +11 more
doaj   +1 more source

The phylogeography of red and yellow coppersmith barbets (Aves: Megalaima haemacephala)

open access: yesFrontiers in Ecology and Evolution, 2014
Understanding the evolution of color in birds is important because it is used for both inter- and intra-specific communication and is often linked to other important traits including life history, behavior, immunology and mate choice.
Robert-Jan eDen Tex   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy