Background Comparative analysis of RNA sequences is the basis for the detailed and accurate predictions of RNA structure and the determination of phylogenetic relationships for organisms that span the entire phylogenetic tree.
Müller Kirsten M+13 more
doaj +1 more source
RNA-Seq analysis of splicing in Plasmodium falciparum uncovers new splice junctions, alternative splicing and splicing of antisense transcripts. [PDF]
Over 50% of genes in Plasmodium falciparum, the deadliest human malaria parasite, contain predicted introns, yet experimental characterization of splicing in this organism remains incomplete.
DeRisi, Joseph L+2 more
core +3 more sources
Drosophila CG3303 is an essential endoribonuclease linked to TDP-43-mediated neurodegeneration [PDF]
Endoribonucleases participate in almost every step of eukaryotic RNA metabolism, acting either as degradative or biosynthetic enzymes. We previously identified the founding member of the Eukaryotic EndoU ribonuclease family, whose components display ...
BOZZONI, Irene+11 more
core +1 more source
Visualizing group II intron dynamics between the first and second steps of splicing
Group II introns are ubiquitous self-splicing ribozymes and retrotransposable elements evolutionarily and chemically related to the eukaryotic spliceosome, with potential applications as gene-editing tools.
Jacopo Manigrasso+7 more
semanticscholar +1 more source
Group II Intron Protein Localization and Insertion Sites Are Affected by Polyphosphate [PDF]
Mobile group II introns consist of a catalytic intron RNA and an intron-encoded protein with reverse transcriptase activity, which act together in a ribonucleoprotein particle to promote DNA integration during intron mobility.
Lambowitz, Alan M.+5 more
core +5 more sources
evolution, structure and function of metazoan splicing factor PRPF39 [PDF]
In the yeast U1 snRNP the Prp39/Prp42 heterodimer is essential for early steps of spliceosome assembly. In metazoans no Prp42 ortholog exists, raising the question how the heterodimer is functionally substituted.
Bortoli, Francesca De+7 more
core +1 more source
Group I catalytic introns are widespread in bacterial, archaeal, viral, organellar, and some eukaryotic genomes, where they are reported to provide regulatory functions.
B. Cinget, R. Bélanger
semanticscholar +1 more source
Phylogeny of conserved adenines in linkers of Group-I introns [PDF]
We have analyzed the linkers in group-I introns, a characteristic region that is crucial to the folding and splicing process of the folded RNA, in seventy sequences spreading across r-RNA, t-RNA and organelle genes from various organisms including algae,
Chandrasekhar Kesavan, Natarajan Ganesan
core +1 more source
Ubiquitin carboxyl-terminal hydrolases are required for period maintenance of the circadian clock at high temperature in Arabidopsis [PDF]
Protein ubiquitylation participates in a number of essential cellular processes including signal transduction and transcription, often by initiating the degradation of specific substrates through the 26S proteasome. Within the ubiquitin-proteasome system,
Coupland, George+6 more
core +1 more source
A stepwise emergence of evolution in the RNA world
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source