Novel endoribonucleases as central players in various pathways of eukaryotic RNA metabolism [PDF]
For a long time it has been assumed that the decay of RNA in eukaryotes is mainly carried out by exoribonucleases, which is in contrast to bacteria, where endoribonucleases are well documented to initiate RNA degradation.
Tomecki, Rafał, Dziembowski, Andrzej
core +3 more sources
Degradation of ribosomal RNA precursors by the exosome [PDF]
The yeast exosome is a complex of 3'-->5' exonucleases involved in RNA processing and degradation. All 11 known components of the exosome are required during 3' end processing of the 5.8S rRNA. Here we report that depletion of each of the individual components inhibits the early pre-rRNA cleavages at sites A(0), A(1), A(2)and A(3), reducing the levels ...
Allmang, Christine +3 more
openaire +3 more sources
Splicing of Messenger RNA Precursors
A general mechanism for the splicing of nuclear messenger RNA precursors in eukaryotic cells has been widely accepted. This mechanism, which generates lariat RNAs possessing a branch site, seems related to the RNA-catalyzed reactions of self-splicing introns.
Sharp, P. A. +5 more
openaire +6 more sources
From Formamide to RNA, the Path Is Tenuous but Continuous
Reactions of formamide (NH2COH) in the presence of catalysts of both terrestrial and meteoritic origin yield, in plausible and variegated conditions, a large panel of precursors of (pre)genetic and (pre)metabolic interest. Formamide chemistry potentially
Samanta Pino +4 more
doaj +1 more source
The Drosophila ZAD zinc finger protein Kipferl guides Rhino to piRNA clusters
RNA interference systems depend on the synthesis of small RNA precursors whose sequences define the target spectrum of these silencing pathways. The Drosophila Heterochromatin Protein 1 (HP1) variant Rhino permits transcription of PIWI-interacting RNA ...
Lisa Baumgartner +5 more
doaj +1 more source
Ribosomal Precursor RNA in Saccharomyces carlsbergensis [PDF]
Several lines of evidence for the occurrence of ribosomal precursor RNA in yeast are presented. This ribosomal precursor RNA has been found in the nuclear fraction, it is rapidly labeled with radioactive nucleotides and sediments faster than the two ribosomal RNAs.
J, Retèl, R J, Planta
openaire +2 more sources
Trim25 is an RNA-specific activator of Lin28a/TuT4-mediated uridylation [PDF]
RNA binding proteins have thousands of cellular RNA targets and often exhibit opposite or passive molecular functions. Lin28a is a conserved RNA binding protein involved in pluripotency and tumorigenesis that was previously shown to trigger TuT4-mediated
Nowak, Jakub S. +14 more
core +1 more source
Complete probabilistic analysis of RNA shapes [PDF]
Voß B, Giegerich R, Rehmsmeier M. Complete probabilistic analysis of RNA shapes. BMC Biology. 2006;4(1): 5.Background: Soon after the first algorithms for RNA folding became available, it was recognised that the prediction of only one energetically ...
Marc Rehmsmeier +8 more
core +1 more source
Maf1-mediated repression of RNA polymerase III transcription inhibits tRNA degradation via RTD pathway [PDF]
tRNA precursors, which are transcribed by RNA polymerase III, undergo end-maturation, splicing and base modifications. Hypomodified tRNAs, such as tRNAVal(AAC), lacking 7-methylguanosine and 5-methylcytidine modifications, are subject to degradation by a
Boguta, Magdalena +3 more
core +1 more source
Axon micro-dissection and transcriptome profiling reveals the in vivo RNA content of fully differentiated myelinated motor axons [PDF]
Axonal protein synthesis has been shown to play a role in developmental and regenerative growth, as well as in the maintenance of the axoplasm in steady state.
Sotelo-Silveira, José Roberto +3 more
core +3 more sources

