Results 81 to 90 of about 6,145,189 (363)

Involvement of human ribosomal proteins in nucleolar structure and p53-dependent nucleolar stress

open access: yesNature Communications, 2016
The nucleolus is a potent disease biomarker and a target in cancer therapy. Ribosome biogenesis is initiated in the nucleolus where most ribosomal (r-) proteins assemble onto precursor rRNAs.
Emilien Nicolas   +5 more
semanticscholar   +1 more source

Introns regulate the production of ribosomal proteins by modulating splicing of duplicated ribosomal protein genes

open access: yesNucleic Acids Research, 2016
Most budding yeast introns exist in the many duplicated ribosomal protein genes (RPGs) and it has been posited that they remain there to modulate the expression of RPGs and cell growth in response to stress.
Cyrielle Petibon   +3 more
semanticscholar   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Extensive evolution of cereal ribosome-inactivating proteins translates into unique structural features, activation mechanisms, and physiological roles [PDF]

open access: yes, 2017
Ribosome-inactivating proteins (RIPs) are a class of cytotoxic enzymes that can depurinate rRNAs thereby inhibiting protein translation. Although these proteins have also been detected in bacteria, fungi, and even some insects, they are especially ...
De Zaeytijd, Jeroen, Van Damme, Els
core   +2 more sources

Deregulation of ribosomal protein expression and translation promotes breast cancer metastasis

open access: yesScience, 2020
Metastasis: A matter of translation? Solid tumors shed a small number of cancer cells into the bloodstream, some of which are believed to contribute to metastasis.
R. Ebright   +24 more
semanticscholar   +1 more source

Ancestral Interactions of Ribosomal RNA and Ribosomal Proteins [PDF]

open access: yesBiophysical Journal, 2017
We have proposed that the ancient ribosome increased in size during early evolution by addition of small folding-competent RNAs. In this Accretion Model, small RNAs and peptides were subsumed onto subunit surfaces, gradually encasing and freezing previously acquired components.
Kathryn A, Lanier   +3 more
openaire   +2 more sources

PARP inhibitors elicit distinct transcriptional programs in homologous recombination competent castration‐resistant prostate cancer

open access: yesMolecular Oncology, EarlyView.
PARP inhibitors are used to treat a small subset of prostate cancer patients. These studies reveal that PARP1 activity and expression are different between European American and African American prostate cancer tissue samples. Additionally, different PARP inhibitors cause unique and overlapping transcriptional changes, notably, p53 pathway upregulation.
Moriah L. Cunningham   +21 more
wiley   +1 more source

Changes in ribosomal proteins in wheat embryos in the course of grain development and maturation

open access: yesActa Societatis Botanicorum Poloniae, 2014
It was found, by comparing the densitometric profiles of ribosomal proteins of wheat embryos in milk and full grain ripeness, that in the process of development and ripening of caryopses the percentual proportion of low molecular weight proteins ...
Stanisław Weidner, Kazimierz Zalewski
doaj   +1 more source

Genome landscapes and bacteriophage codon usage [PDF]

open access: yes, 2007
Across all kingdoms of biological life, protein-coding genes exhibit unequal usage of synonmous codons. Although alternative theories abound, translational selection has been accepted as an important mechanism that shapes the patterns of codon usage in ...
A Eyre-Walker   +60 more
core   +6 more sources

Aggressive prostate cancer is associated with pericyte dysfunction

open access: yesMolecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero   +11 more
wiley   +1 more source

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