Results 41 to 50 of about 5,836,775 (343)

Synchronizing Nuclear Import of Ribosomal Proteins with Ribosome Assembly [PDF]

open access: yesScience, 2012
Symportin Synchrony Ribosomes, the macromolecular machines responsible for protein synthesis, function in the cytoplasm but are assembled in the nucleus. Ribosomal proteins must be imported into the nucleus, but how this is coordinated with assembly is unclear. Kressler et al.
D. Kressler   +11 more
semanticscholar   +4 more sources

Studies on the Coordination of Ribosomal Protein Assembly Events Involved in Processing and Stabilization of Yeast Early Large Ribosomal Subunit Precursors. [PDF]

open access: yesPLoS ONE, 2015
Cellular production of ribosomes involves the formation of highly defined interactions between ribosomal proteins (r-proteins) and ribosomal RNAs (rRNAs). Moreover in eukaryotic cells, efficient ribosome maturation requires the transient association of a
Uli Ohmayer   +7 more
doaj   +1 more source

Ribosomal Proteins Control or Bypass p53 during Nucleolar Stress

open access: yesInternational Journal of Molecular Sciences, 2017
The nucleolus is the site of ribosome biogenesis, a complex process that requires the coordinate activity of all three RNA polymerases and hundreds of non-ribosomal factors that participate in the maturation of ribosomal RNA (rRNA) and assembly of small ...
A. Russo, G. Russo
semanticscholar   +1 more source

Insights into the origin of the nuclear localization signals in conserved ribosomal proteins [PDF]

open access: yesNature Communications, 2014
Eukaryotic ribosomal proteins, unlike their bacterial homologues, possess nuclear localization signals (NLSs) to enter the cell nucleus during ribosome assembly.
S. Melnikov   +3 more
semanticscholar   +1 more source

Ribosome-Inactivating and Related Proteins [PDF]

open access: yesToxins, 2015
Ribosome-inactivating proteins (RIPs) are toxins that act as N-glycosidases (EC 3.2.2.22). They are mainly produced by plants and classified as type 1 RIPs and type 2 RIPs. There are also RIPs and RIP related proteins that cannot be grouped into the classical type 1 and type 2 RIPs because of their different sizes, structures or functions. In addition,
Schrot, Joachim   +2 more
openaire   +5 more sources

The Arabidopsis cytosolic ribosomal proteome: from form to function

open access: yesFrontiers in Plant Science, 2013
The cytosolic ribosomal proteome of Arabidopsis thaliana has been studied intensively by a range of proteomics approaches and is now one of the best-characterised eukaryotic ribosomal proteomes.
Adam James Carroll
doaj   +1 more source

rRNA maturation in yeast cells depleted of large ribosomal subunit proteins. [PDF]

open access: yesPLoS ONE, 2009
The structural constituents of the large eukaryotic ribosomal subunit are 3 ribosomal RNAs, namely the 25S, 5.8S and 5S rRNA and about 46 ribosomal proteins (r-proteins).
Gisela Pöll   +7 more
doaj   +1 more source

A conserved quality-control pathway that mediates degradation of unassembled ribosomal proteins

open access: yeseLife, 2016
Overproduced yeast ribosomal protein (RP) Rpl26 fails to assemble into ribosomes and is degraded in the nucleus/nucleolus by a ubiquitin-proteasome system quality control pathway comprising the E2 enzymes Ubc4/Ubc5 and the ubiquitin ligase Tom1.

semanticscholar   +1 more source

Extraribosomal Functions of Cytosolic Ribosomal Proteins in Plants

open access: yesFrontiers in Plant Science, 2021
Ribosomes are basic translational machines in all living cells. The plant cytosolic ribosome is composed of four rRNAs and approximately 81 ribosomal proteins (RPs). In addition to the fundamental functions of RPs in the messenger RNA decoding process as
Wei Xiong   +4 more
doaj   +1 more source

Interaction between the assembly of the ribosomal subunits: Disruption of 40S ribosomal assembly causes accumulation of extra-ribosomal 60S ribosomal protein uL18/L5. [PDF]

open access: yesPLoS ONE, 2020
Inhibition of the synthesis of an essential ribosomal protein (r-protein) abrogates the assembly of its cognate subunit, while assembly of the other subunit continues.
Nusrat Rahman   +2 more
doaj   +1 more source

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