Results 21 to 30 of about 6,542,890 (150)

Impact of cancer-associated mutations in Hsh155/SF3b1 HEAT repeats 9-12 on pre-mRNA splicing in Saccharomyces cerevisiae.

open access: yesPLoS ONE, 2020
Mutations in the splicing machinery have been implicated in a number of human diseases. Most notably, the U2 small nuclear ribonucleoprotein (snRNP) component SF3b1 has been found to be frequently mutated in blood cancers such as myelodysplastic ...
Harpreet Kaur   +4 more
doaj   +1 more source

Binding of the heterogeneous ribonucleoprotein K (hnRNP K) to the Epstein-Barr virus nuclear antigen 2 (EBNA2) enhances viral LMP2A expression. [PDF]

open access: yes, 2012
The Epstein-Barr Virus (EBV) -encoded EBNA2 protein, which is essential for the in vitro transformation of B-lymphocytes, interferes with cellular processes by binding to proteins via conserved sequence motifs.
Stephanie Barth   +68 more
core   +2 more sources

tRNAs promote nuclear import of HIV-1 intracellular reverse transcription complexes [PDF]

open access: yes, 2006
Infection of non-dividing cells is a biological property of HIV-1 crucial for virus transmission and AIDS pathogenesis. This property depends on nuclear import of the intracellular reverse transcription and pre-integration complexes (RTCs/PICs).
Zaitseva Lyubov   +8 more
core   +1 more source

Arabidopsis U2AF65 Regulates Flowering Time and the Growth of Pollen Tubes

open access: yesFrontiers in Plant Science, 2019
During pre-mRNA splicing, U2 small nuclear ribonucleoprotein auxiliary factor 65 (U2AF65) interacts with U2AF35 and splicing factor 1 (SF1), allowing for the recognition of the 3′-splice site by the ternary complex.
Hyo-Young Park   +3 more
doaj   +1 more source

Transient splicing inhibition causes persistent DNA damage and chemotherapy vulnerability in triple-negative breast cancer

open access: yesCell Reports
Summary: Triple negative breast cancer (TNBC) is an aggressive type of breast cancer. While most TNBCs are initially sensitive to chemotherapy, a substantial fraction acquires resistance to treatments and progresses to more advanced stages.
Cinzia Caggiano   +10 more
doaj   +1 more source

The small-subunit processome is a ribosome assembly intermediate [PDF]

open access: yes, 2004
The small-subunit (SSU) processome is a large ribonucleoprotein required for the biogenesis of the 18S rRNA and likely corresponds to the terminal knobs visualized by electron microscopy on the 5' end of nascent rRNAs.
Granneman, Sander; id_orcid   +4 more
core   +1 more source

RNA elements directing in vivo assembly of the 7SK/MePCE/Larp7 transcriptional regulatory snRNP [PDF]

open access: yes, 2013
Through controlling the nuclear level of active positive transcription elongation factor b (P-TEFb), the 7SK small nuclear RNA (snRNA) functions as a key regulator of RNA polymerase II transcription.
Kiss, T.   +4 more
core   +1 more source

PTBP1‐Mediated Alternative Splicing of DNAJB6 Promotes Everolimus Resistance in Clear Cell Renal Cell Carcinoma via EIF4B/PKIB/AKT/mTOR Positive Feedback Loop

open access: yesAdvanced Science, EarlyView.
PTBP1‐mediated alternative splicing drives a pathogenic switch to the DNAJB6b isoform in everolimus‐resistant clear cell renal cell carcinoma. This splicing event programs a positive feedback loop including EIF4B/PKIB/AKT/mTOR, promoting aggressive therapy resistance.
Xiu‐wu Pan   +18 more
wiley   +1 more source

The SMN protein is a key regulator of nuclear architecture in differentiating neuroblastoma cells [PDF]

open access: yes, 2009
The cell nucleus contains two closely related structures, Cajal bodies (CBs) and gems. CBs are the first site of accumulation of newly assembled splicing snRNPs (small nuclear ribonucleoproteins) following their import into the nucleus, before they form ...
Nicholas P. Kinnear   +9 more
core   +1 more source

Phenotypic and transcriptomic characterization of biallelic RNU2‐2 developmental and epileptic encephalopathy

open access: yesEpilepsia, EarlyView.
Abstract Objective A significant proportion of individuals with suspected genetic developmental and epileptic encephalopathies (DEEs) remain unsolved following whole genome sequencing (WGS). Here we describe biallelic RNU2‐2 variants causing a recently reported, severe, recessive DEE.
Olivia J. Henry   +23 more
wiley   +1 more source

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