Results 21 to 30 of about 523,127 (337)

A Ribosome Without RNA [PDF]

open access: yesFrontiers in Ecology and Evolution, 2015
It was Francis Crick who first asked why the ribosome contains so much RNA, and discussed the implications of this for the direct flow of genetic information from DNA to protein. Remarkable advances in our understanding of the ribosome and protein synthesis, including the recent publication of two mammalian mitochondrial ribosome structures, have shed ...
Bernhardt, Harold S., Tate, Warren P.
openaire   +2 more sources

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

5S Ribosomal RNA Database [PDF]

open access: yesNucleic Acids Research, 2002
Ribosomal 5S RNA (5S rRNA) is an integral component of the large ribosomal subunit in all known organisms with the exception only of mitochondrial ribosomes of fungi and animals. It is thought to enhance protein synthesis by stabilization of a ribosome structure. This paper presents the updated database of 5S rRNA and their genes (5S rDNA).
Maciej, Szymanski   +3 more
openaire   +2 more sources

HMG-boxes, ribosomopathies and neurodegenerative disease

open access: yesFrontiers in Genetics, 2023
The UBTF E210K neuroregression syndrome is a predominantly neurological disorder caused by recurrent de novo dominant variants in Upstream Binding Factor, that is, essential for transcription of the ribosomal RNA genes. This unusual form of ribosomopathy
Tom Moss   +4 more
doaj   +1 more source

Genomic function during the lampbrush chromosome stage of amphibian oogenesis [PDF]

open access: yes, 1966
Throughout its lengthy developmental history the disposition of the genetic material in the amphibian oocyte nucleus differs from that in other cell types.
Crippa, Marco   +3 more
core   +1 more source

FIERY1 promotes microRNA accumulation by suppressing rRNA-derived small interfering RNAs in Arabidopsis

open access: yesNature Communications, 2019
Arabidopsis AGO1 binds both microRNA (miRNA) and endogenous small interfering RNA (siRNA). Here the authors show that 5′−3′ RNA degradation suppresses siRNA biogenesis from ribosomal RNA to prevent overloading of AGO1 with ribosomal siRNA and maintain ...
Chenjiang You   +8 more
doaj   +1 more source

Orchestrating ribosomal RNA folding during ribosome assembly

open access: yesBioEssays, 2022
AbstractConstruction of the eukaryotic ribosome is a complex process in which a nascent ribosomal RNA (rRNA) emerging from RNA Polymerase I hierarchically folds into a native three‐dimensional structure. Modular assembly of individual RNA domains through interactions with ribosomal proteins and a myriad of assembly factors permit efficient ...
Oborská-Oplová, Michaela   +2 more
openaire   +2 more sources

Idiosyncratic evolution of conserved eukaryote proteins that are similar in sequence to archaeal or bacterial proteins [PDF]

open access: yes, 2008
Sequence comparisons have been made between the proteins of 571 prokaryote species including 46 archaea and 525 bacteria and the set of human proteins.
Roy J. Britten
core   +2 more sources

RNA polymerase I mutant affects ribosomal RNA processing and ribosomal DNA stability

open access: yesRNA Biology
Transcription is a major contributor to genomic instability. The ribosomal RNA (rDNA) gene locus consists of a head-to-tail repeat of the most actively transcribed genes in the genome.
Christophe Normand   +7 more
doaj   +1 more source

Recent Advances on the Structure and Function of RNA Acetyltransferase Kre33/NAT10

open access: yesCells, 2019
Ribosome biogenesis is one of the most energy demanding processes in the cell. In eukaryotes, the main steps of this process occur in the nucleolus and include pre-ribosomal RNA (pre-rRNA) processing, post-transcriptional modifications, and assembly of ...
Sophie Sleiman, Francois Dragon
doaj   +1 more source

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