Results 91 to 100 of about 65,820 (278)

Spliceosome protein alterations differentiate hubs of the default mode connectome during the progression of Alzheimer's disease

open access: yesBrain Pathology, EarlyView.
Default mode network (DMN) consists, in part, of the frontal (FC), precuneus (PreC), and posterior cingulate cortex (PCC), which plays a critical role in episodic memory and retrieval of autobiographical memories, displays spatiotemporal differences in the onset of amyloid and hypometabolism that reflects tau neurodegeneration and loss of connectivity ...
Sylvia E. Perez   +8 more
wiley   +1 more source

Characterization of mRNA polyadenylation in the apicomplexa

open access: yesPLOS ONE, 2018
Messenger RNA polyadenylation is a universal aspect of gene expression in eukaryotes. In well-established model organisms, this process is mediated by a conserved complex of 15-20 subunits. To better understand this process in apicomplexans, a group of unicellular parasites that causes serious disease in humans and livestock, a computational and high ...
Ashley T. Stevens   +2 more
openaire   +5 more sources

A Study of Methylated Polyadenylic Acid [PDF]

open access: yesEuropean Journal of Biochemistry, 1971
Copolymers with different contents of adenine and N1‐methyl adenine residues have been studied, polyadenylic acid being methylated by dimethylsulfate. Thermal stability, circular dichroism and light scattering measurements are in favor of a two‐strand structure at neutral pH.
Claude Thrierr, Marc Leng
openaire   +3 more sources

Diversity of U1 Small Nuclear RNAs and Diagnostic Methods for Their Mutations

open access: yesCancer Science, EarlyView.
Complex interindividual U1 snRNA diversity was unveiled. Mutations in such complex loci were precisely detected with a pangenome graph reference, which enhances the possibility of the human pangenome reference in cancer genomics. ABSTRACT U1 small nuclear RNA (snRNA) mutations are recurrent non‐coding alterations found in various malignancies, yet ...
Takuma Nakashima   +15 more
wiley   +1 more source

Tissue‐specific mechanisms of alternative polyadenylation: Testis, brain, and beyond (2018 update)

open access: yesWiley Interdisciplinary Reviews - RNA, 2019
Alternative polyadenylation (APA) is how genes choose different sites for 3′ end formation for mRNAs during transcription. APA often occurs in a tissue‐ or developmental stage‐specific manner that can significantly affect gene activity by changing the ...
C. MacDonald
semanticscholar   +1 more source

Preferential superficial cortical layer activation during seizure propagation

open access: yesEpilepsia, Volume 66, Issue 3, Page 929-941, March 2025.
Abstract Objective Focal cortical seizures travel long distances from the onset zone, but the long‐distance propagation pathways are uncertain. In vitro and in vivo imaging techniques have investigated the local spread of seizures but did not elucidate long‐distance spread. Furthermore, classical studies in slices suggested seizure spread locally along
Anastasia Brodovskaya   +4 more
wiley   +1 more source

APAatlas: decoding alternative polyadenylation across human tissues

open access: yesNucleic Acids Res., 2019
Alternative polyadenylation (APA) is an RNA-processing mechanism on the 3′ terminus that generates distinct isoforms of mRNAs and/or other RNA polymerase II transcripts with different 3′UTR lengths.
Wei Hong   +10 more
semanticscholar   +1 more source

Past, present, and future strategies for detecting and quantifying circular RNA variants

open access: yesThe FEBS Journal, EarlyView.
Originally considered artifact of RNA splicing, over 3 million circular RNAs have been found in humans alone through a combination of ultrasensitive detection methods and bespoke bioinformatics tools. This review covers past, present, and future strategies for detecting and quantifying circular RNAs and how they are illuminating novel circular RNA ...
He Lin, Vanessa M. Conn, Simon J. Conn
wiley   +1 more source

Editorial: Alternative Polyadenylation in Development and Disease

open access: yesFrontiers in Genetics, 2022
Athma A. Pai, Yang I. Li, Paolo Provero
doaj   +1 more source

The TP53 tumor suppressor gene: From molecular biology to clinical investigations

open access: yesJournal of Internal Medicine, EarlyView.
Abstract Extensively studied over the past four decades, the TP53 gene has emerged as a pivotal watchman in cellular defense and a key factor in cancer biology. TP53 is the most frequently mutated gene in human malignancies, 50% of which carry alterations to it.
Panagiotis Baliakas, Thierry Soussi
wiley   +1 more source

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