Results 21 to 30 of about 557,603 (268)

Precursors of U4 small nuclear RNA. [PDF]

open access: yesThe Journal of cell biology, 1984
The processing and ribonucleoprotein assembly of U4 small nuclear RNA has been investigated in HeLa cells. After a 45-min pulse label with [3H]uridine, a set of apparently cytoplasmic RNAs was observed migrating just behind the gel electrophoretic position of mature U4 RNA.
S J, Madore   +3 more
openaire   +2 more sources

New small nuclear RNA gene-like transcriptional units as sources of regulatory transcripts. [PDF]

open access: yesPLoS Genetics, 2007
By means of a computer search for upstream promoter elements (distal sequence element and proximal sequence element) typical of small nuclear RNA genes, we have identified in the human genome a number of previously unrecognized, putative transcription ...
Aldo Pagano   +5 more
doaj   +1 more source

Spliceosomal snRNA Epitranscriptomics

open access: yesFrontiers in Genetics, 2021
Small nuclear RNAs (snRNAs) are critical components of the spliceosome that catalyze the splicing of pre-mRNA. snRNAs are each complexed with many proteins to form RNA-protein complexes, termed as small nuclear ribonucleoproteins (snRNPs), in the cell ...
Pedro Morais, Hironori Adachi, Yi-Tao Yu
doaj   +1 more source

Species Diversity, Molecular Phylogeny, and Ecological Habits of Fomitopsis (Polyporales, Basidiomycota)

open access: yesFrontiers in Microbiology, 2022
Fomitopsis is a worldwide brown-rot fungal genus of Polyporales, which grows on different gymnosperm and angiosperm trees and has important ecological functions and economic values.
Shun Liu   +5 more
doaj   +1 more source

Ancient Origin of the U2 Small Nuclear RNA Gene-Targeting Non-LTR Retrotransposons Utopia. [PDF]

open access: yesPLoS ONE, 2015
Most non-long terminal repeat (non-LTR) retrotransposons encoding a restriction-like endonuclease show target-specific integration into repetitive sequences such as ribosomal RNA genes and microsatellites.
Kenji K Kojima, Jerzy Jurka
doaj   +1 more source

Mutually Exclusive CBC-Containing Complexes Contribute to RNA Fate

open access: yesCell Reports, 2017
The nuclear cap-binding complex (CBC) stimulates processing reactions of capped RNAs, including their splicing, 3′-end formation, degradation, and transport.
Simone Giacometti   +12 more
doaj   +1 more source

Nuclear Retention Elements of U3 Small Nucleolar RNA [PDF]

open access: yesMolecular and Cellular Biology, 1999
The processing and methylation of precursor rRNA is mediated by the box C/D small nucleolar RNAs (snoRNAs). These snoRNAs differ from most cellular RNAs in that they are not exported to the cytoplasm. Instead, these RNAs are actively retained in the nucleus where they assemble with proteins into mature small nucleolar ribonucleoprotein particles and ...
W, Speckmann   +3 more
openaire   +2 more sources

Transcriptional regulation of human small nuclear RNA genes [PDF]

open access: yesBiochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms, 2008
The products of human snRNA genes have been frequently described as performing housekeeping functions and their synthesis refractory to regulation. However, recent studies have emphasized that snRNA and other related non-coding RNA molecules control multiple facets of the central dogma, and their regulated expression is critical to cellular homeostasis
Gauri W, Jawdekar, R William, Henry
openaire   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Sphingomyelin regulates the transcriptional machinery in nuclear lipid microdomains

open access: yesCommunications Biology
Nuclear lipid microdomains rich in sphingomyelin and cholesterol content regulate double-stranded exonuclease-resistant RNA. The study aimed to elucidate the importance of nuclear lipid microdomains in safeguarding nuclear RNA from digestion and to ...
Carmela Conte   +17 more
doaj   +1 more source

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