Results 51 to 60 of about 13,335 (199)
SART3-Dependent Accumulation of Incomplete Spliceosomal snRNPs in Cajal Bodies
Cell Reports, 2015 Cajal bodies (CBs) are evolutionarily conserved nuclear structures involved in the metabolism of spliceosomal small nuclear ribonucleoprotein particles (snRNPs). CBs are not present in all cell types, and the trigger for their formation is not yet known.
Ivan Novotný +8 more
doaj +1 more source
A chalcone derivative reactivates latent HIV-1 transcription through activating P-TEFb and promoting Tat-SEC interaction on viral promoter. [PDF]
, 2017 The principal barrier to the eradication of HIV/AIDS is the existence of latent viral reservoirs. One strategy to overcome this barrier is to use latency-reversing agents (LRAs) to reactivate the latent proviruses, which can then be eliminated by ...
Ao, Ming-Tao +9 more
core +2 more sources
Compartmentalisation in cAMP signalling: A phase separation perspective
British Journal of Pharmacology, EarlyView.Cells rely on precise spatiotemporal control of signalling pathways to ensure functional specificity. The compartmentalisation of cyclic AMP (cAMP) and protein kinase A (PKA) signalling enables distinct cellular responses within a crowded cytoplasmic space.
Milda Folkmanaite, Manuela Zaccolo
wiley +1 more source
Cell Reports, 2017 Hexanucleotide repeat expansion in the C9ORF72 gene results in production of dipeptide repeat (DPR) proteins that may disrupt pre-mRNA splicing in amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) patients.
Shanye Yin +7 more
doaj +1 more source
Molecular principles underlying dual RNA specificity in the Drosophila SNF protein [PDF]
, 2018 The first RNA recognition motif of the Drosophila SNF protein is an example of an RNA binding protein with multi-specificity. It binds different RNA hairpin loops in spliceosomal U1 or U2 small nuclear RNAs, and only in the latter case requires the ...
DeKoster, Gregory T +4 more
core +3 more sources
The FEBS Journal, EarlyView.Human SART3 has two RRM domains to engage with U6 snRNA for spliceosome recycling. This study reports solution structures of SART3 RRM domains and investigates the interaction between RRM and U6 snRNA. SART3 binds to the asymmetric bulge of U6 snRNA as a dimer via conserved positively charged surfaces.
Iktae Kim +8 more
wiley +1 more source
Journal of Integrative Plant Biology, EarlyView.Maize ZmLSM2 (U6 small nuclear ribonucleoprotein specific Sm‐like 2) controls maize stem strength by affecting vascular bundle structure. Using advanced computed tomography imaging and artificial intelligence identified key stem traits linked to lodging resistance and developed a predictive model.
Ying Zhang +14 more
wiley +1 more source
evolution, structure and function of metazoan splicing factor PRPF39 [PDF]
, 2019 In the yeast U1 snRNP the Prp39/Prp42 heterodimer is essential for early steps of spliceosome assembly. In metazoans no Prp42 ortholog exists, raising the question how the heterodimer is functionally substituted.
Bortoli, Francesca De +7 more
core +1 more source
New Phytologist, EarlyView.Summary Circular RNAs (circRNAs) are single‐stranded, covalently closed RNA molecules that arise from exon back‐splicing. The identification and function investigation of circRNAs have been comprehensively explored in plants, however, the regulatory mechanisms are largely unknown.
Yi Ren +14 more
wiley +1 more source
Frontiers in NeuroscienceIntroductionThe U1 small nuclear RNA (snRNA) forms ribonucleoprotein particles (RNPs) such as U1 snRNP and U1-TAF15 snRNP. U1 snRNP is one of the most studied RNPs due to its critical role in pre-mRNA splicing in defining the 5′ splice site (5′ss) of ...
Eric W. Ottesen +3 more
doaj +1 more source