Results 31 to 40 of about 129,688 (259)

Post-translational modifications of PRC2: signals directing its activity

open access: yesEpigenetics & Chromatin, 2020
Polycomb repressive complex 2 (PRC2) is a chromatin-modifying enzyme that catalyses the methylation of histone H3 at lysine 27 (H3K27me1/2/3). This complex maintains gene transcriptional repression and plays an essential role in the maintenance of ...
Yiqi Yang, Gang Li
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Effect of amino acids on the repression of alkaline protease synthesis in haloalkaliphilic Nocardiopsis dassonvillei

open access: yesBiotechnology Reports, 2016
A newly isolated salt-tolerant alkaliphilic actinomycete, Nocardiopsis dassonvillei strain OK-18 grows on mineral salts medium with glucose as carbon source. It also grows and produces protease with amino acids as sole carbon source.
Amit K. Sharma, Satya P. Singh
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Apparent Induction of Xylanase by Bacillus pumilus PU4-2 using Pretreated Substrates

open access: yesMicrobiology Indonesia, 2010
Bacillus pumilus PU4-2 produces xylanase (â-1,4-D-xylan xylanohydrolase; EC 3.2.1.8) in wheat pollard with high activity. Water and NaOH-soaked pollard were used in this research to enhance the production of assayable enzyme. Enzyme activity was produced
SHERLY WIDJAJA   +2 more
doaj   +1 more source

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

open access: yesMolecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel   +6 more
wiley   +1 more source

Paradoxical mTORC1-Dependent microRNA-mediated Translation Repression in the Nucleus Accumbens of Male Mice Consuming Alcohol Attenuates Glycolysis

open access: yesNature Communications
mTORC1 promotes protein translation, learning and memory, and neuroadaptations that underlie alcohol use disorder (AUD). The mechanisms underlying alcohol-mediated mTORC1-dependent neuroadaptations that drive AUD are not well understood.
Yann Ehinger   +9 more
doaj   +1 more source

Translation repression in human cells by microRNA-induced gene silencing requires RCK/p54.

open access: yesPLoS Biology, 2006
RNA interference is triggered by double-stranded RNA that is processed into small interfering RNAs (siRNAs) by Dicer enzyme. Endogenously, RNA interference triggers are created from small noncoding RNAs called microRNAs (miRNAs).
Chia-ying Chu, Tariq M Rana
doaj   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

open access: yesMolecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano   +6 more
wiley   +1 more source

Three-dimensional growth reveals fine-tuning of 5-lipoxygenase by proliferative pathways in cancer

open access: yesLife Science Alliance, 2023
The expression of 5-lipoxygenase, the key enzyme in leukotriene biosynthesis, is suppressed in proliferating cancer cells by a PI3K/mTORC-2– and MEK-1/ERK-dependent axis involving E2F1 and b-Myb. The leukotriene (LT) pathway is positively correlated with
Tamara Göbel   +8 more
doaj   +1 more source

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