Results 91 to 100 of about 694,635 (312)

Enzymatic Processing of Platinated RNAs [PDF]

open access: yesJournal of the American Chemical Society, 2010
The broadly prescribed antitumor drug cisplatin coordinates to DNA, altering the activity of cellular proteins whose functions rely upon sensing DNA structure. Cisplatin is also known to coordinate to RNA, but the effects of RNA-Pt adducts on the large number of proteins that process the transcriptome are currently unknown.
Erich G, Chapman, Victoria J, DeRose
openaire   +2 more sources

Structural insights into the dynamics and function of the C-terminus of the E. coli RNA chaperone Hfq

open access: yes, 2011
The hexameric Escherichia coli RNA chaperone Hfq (Hfq(Ec)) is involved in riboregulation of target mRNAs by small trans-encoded RNAs. Hfq proteins of different bacteria comprise an evolutionarily conserved core, whereas the C-terminus is variable in ...
Beich-Frandsen, Mads (Department of Structural and Computational Biology, Centre for Molecular Biology, University of Vienna)   +46 more
core   +1 more source

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

open access: yesFEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Interaction of yeast eIF4G with spliceosome components Implications in pre-mRNA processing events

open access: yes, 2009
As evidenced from mammalian cells the eukaryotic translation initiation factor eIF4G has a putative role in nuclear RNA metabolism. Here we investigate whether this role is conserved in the yeast Saccharomyces cerevisiae.
Lewis, Joe   +7 more
core   +1 more source

The role of the yeast cleavage and polyadenylation factor subunit Ydh1p/Cft2p in pre-mRNA 3'-end formation [PDF]

open access: yes, 2003
Cleavage and polyadenylation factor (CPF) is a multi-protein complex that functions in pre-mRNA 3'-end formation and in the RNA polymerase II (RNAP II) transcription cycle.
Sadowski, Martin   +7 more
core   +1 more source

Mitochondrial RNA Granules Are Centers for Posttranscriptional RNA Processing and Ribosome Biogenesis

open access: yesCell Reports, 2015
Cytoplasmic RNA granules play a central role in mRNA metabolism, but the importance of mitochondrial RNA granules remains relatively unexplored. We characterized their proteome and found that they contain a large toolbox of proteins dedicated to RNA ...
Hana Antonicka, Eric A. Shoubridge
doaj   +1 more source

Role of Viral Ribonucleoproteins in Human Papillomavirus Type 16 Gene Expression

open access: yesViruses, 2020
Human papillomaviruses (HPVs) depend on the cellular RNA-processing machineries including alternative RNA splicing and polyadenylation to coordinate HPV gene expression. HPV RNA processing is controlled by cis-regulatory RNA elements and trans-regulatory
Naoko Kajitani, Stefan Schwartz
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

RNA processing: Pocket guides to ribosomal RNA [PDF]

open access: yesCurrent Biology, 1997
The functional role of a recently identified class of small nucleolar (sno) RNAs has been elucidated: the 'box H/ACA' snoRNAs act as guide RNAs, specifying the position of evolutionarily conserved pseudouridines in ribosomal (r)RNA via an rRNA-snoRNA base-pairing interaction that forms a 'pseudouridine pocket'.
openaire   +2 more sources

Environmental perturbations lead to extensive directional shifts in RNA processing

open access: yes, 2018
Environmental perturbations have large effects on both organismal and cellular traits, including gene expression, but the extent to which the environment affects RNA processing remains largely uncharacterized.
Luca, Francesca   +7 more
core   +1 more source

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