Results 21 to 30 of about 493,161 (353)

Toxocara canis (Ascaridida: Nematoda): Mitochondrial gene content, arrangement and composition compared with other Toxocara species

open access: yesSri Lankan Journal of Infectious Diseases, 2014
Introduction: The complete mitochondrial (mt) genomes of nematodes sequenced thus far are circular and small in length, containing 37 genes, including 12–13 protein-coding genes: namely, cytochrome oxidase subunits 1–3 (cox1–3), nicotinamide adenine ...
S Wickramasinghe, L Yatawara, T Agatsuma
doaj   +1 more source

Yeast Rrp8p, a novel methyltransferase responsible for m1A 645 base modification of 25S rRNA [PDF]

open access: yes, 2012
Ribosomal RNA undergoes various modifications to optimize ribosomal structure and expand the topological potential of RNA. The most common nucleotide modifications in ribosomal RNA (rRNA) are pseudouridylations and 2'-O methylations (Nm), performed by H ...
Entian, Karl-Dieter   +5 more
core   +1 more source

RNA‐guided nucleotide modification of ribosomal and non‐ribosomal RNAs in Archaea [PDF]

open access: yesMolecular Microbiology, 2004
SummaryArchaea use ribonucleoprotein (RNP) machines similar to those found in the eukaryotic nucleolus to methylate ribose residues in nascent ribosomal RNA. The archaeal complex required for this 2′‐O‐ribose‐methylation consists of the C/D box sRNA guide and three proteins, the core RNA‐binding aL7a protein, the aNop56 protein and the ...
Patrick P. Dennis   +3 more
openaire   +3 more sources

Epitranscriptomics of Mammalian Mitochondrial Ribosomal RNA

open access: yesCells, 2020
Modified nucleotides are present in all ribosomal RNA molecules. Mitochondrial ribosomes are unique to have a set of methylated residues that includes universally conserved ones, those that could be found either in bacterial or in archaeal/eukaryotic ...
Ivan Laptev, Olga Dontsova, Petr Sergiev
doaj   +1 more source

The complete chloroplast genome of Juniperus squamata (Cupressaceae), a shrubby conifer from Asian Mountains

open access: yesMitochondrial DNA. Part B. Resources, 2019
The complete chloroplast genome of Juniperus squamata, a shrubby conifer of ornamental value, is determined in this study. The complete chloroplast genome size is 127,792 bp in length.
Siyu Xie   +4 more
doaj   +1 more source

The 23S Ribosomal RNA From Pyrococcus furiosus Is Circularly Permuted

open access: yesFrontiers in Microbiology, 2020
Synthesis and assembly of ribosomal components are fundamental cellular processes and generally well-conserved within the main groups of organisms. Yet, provocative variations to the general schemes exist. We have discovered an unusual processing pathway
Ulf Birkedal   +4 more
doaj   +1 more source

Two RNA-binding motifs in eIF3 direct HCV IRES-dependent translation. [PDF]

open access: yes, 2013
The initiation of protein synthesis plays an essential regulatory role in human biology. At the center of the initiation pathway, the 13-subunit eukaryotic translation initiation factor 3 (eIF3) controls access of other initiation factors and mRNA to the
Arias-Palomo, Ernesto   +6 more
core   +1 more source

Autophagy regulates rRNA synthesis

open access: yesNucleus, 2022
Autophagy has emerged as a key regulator of cell metabolism. Recently, we have demonstrated that autophagy is involved in RNA metabolism by regulating ribosomal RNA (rRNA) synthesis.
Yinfeng Xu, Wei Wan
doaj   +1 more source

Dielectrophoretic manipulation of ribosomal RNA [PDF]

open access: yesBiomicrofluidics, 2011
The manipulation of ribosomal RNA (rRNA) extracted from E. coli cells by dielectrophoresis (DEP) has been demonstrated over the range of 3 kHz–50 MHz using interdigitated microelectrodes. Quantitative measurement using total internal reflection fluorescence microscopy of the time dependent collection indicated a positive DEP response characterized by a
Giraud, Gerard   +13 more
openaire   +4 more sources

Conformational switches control early maturation of the eukaryotic small ribosomal subunit

open access: yeseLife, 2019
Eukaryotic ribosome biogenesis is initiated with the transcription of pre-ribosomal RNA at the 5’ external transcribed spacer, which directs the early association of assembly factors but is absent from the mature ribosome.
Mirjam Hunziker   +5 more
doaj   +1 more source

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