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Benoîte Bourdin et al.
The Journal of biological chemistry, 290(5), 2854-2869 (2014-12-21)
L-type Ca(2+) channels play a critical role in cardiac rhythmicity. These ion channels are oligomeric complexes formed by the pore-forming CaVα1 with the auxiliary CaVβ and CaVα2δ subunits. CaVα2δ increases the peak current density and improves the voltage-dependent activation gating...
Zhaohua Hu et al.
The EMBO journal, 39(12), e104133-e104133 (2020-04-30)
Long non-coding RNAs (lncRNAs) are emerging regulators of genomic stability and human disease. However, the molecular mechanisms by which nuclear lncRNAs directly contribute to DNA damage responses remain largely unknown. Using RNA antisense purification coupled with quantitative mass spectrometry (RAP-qMS)...
Thomas C Montavon et al.
PLoS pathogens, 17(5), e1009549-e1009549 (2021-05-14)
The antiviral innate immune response mainly involves type I interferon (IFN) in mammalian cells. The contribution of the RNA silencing machinery remains to be established, but several recent studies indicate that the ribonuclease DICER can generate viral siRNAs in specific...
Rui Chen et al.
The Journal of biological chemistry, 287(36), 30800-30811 (2012-07-19)
Hypoxia-inducible factors (HIFs) are oxygen-sensitive transcription factors. HIF-1α plays a prominent role in hypoxic gene induction. HIF-2α target genes are more restricted but include erythropoietin (Epo), one of the most highly hypoxia-inducible genes in mammals. We previously reported that HIF-2α...
Xiao-Xue Li et al.
Molecular cell, 69(3), 480-492 (2018-02-06)
Fatty acid oxidation (FAO) is crucial for cells to overcome metabolic stress by providing ATP and NADPH. However, the mechanism by which FAO is regulated in tumors remains elusive. Here we show that Nur77 is required for the metabolic adaptation...
In-Kyu Kim et al.
Cell death and differentiation, 27(7), 2263-2279 (2020-02-09)
The pathogenesis of thymic epithelial tumors (TETs) is poorly understood. Recently we reported the frequent occurrence of a missense mutation in the GTF2I gene in TETs and hypothesized that GTF2I mutation might contribute to thymic tumorigenesis. Expression of mutant TFII-I...
Stephanie Ngai et al.
The FEBS journal, 277(1), 119-127 (2009-11-20)
Anthrax lethal toxin triggers death in some cell types, such as macrophages, and causes a variety of cellular dysfunctions in others. Collectively, these effects dampen the innate and adaptive immune systems to allow Bacillus anthracis to survive and proliferate in...
Yapeng Ji et al.
Nature communications, 8, 15308-15308 (2017-05-19)
Targeting the specific metabolic phenotypes of colorectal cancer stem cells (CRCSCs) is an innovative therapeutic strategy for colorectal cancer (CRC) patients with poor prognosis and relapse. However, the context-dependent metabolic traits of CRCSCs remain poorly elucidated. Here we report that...
Haiyan Jing et al.
Biochemical and biophysical research communications, 404(4), 979-984 (2010-12-29)
With-no-lysine (K) kinase 4 (WNK4) is a protein serine/threonine kinase associated with a Mendelian form of hypertension. WNK4 is an integrative regulator of renal transport of Na(+), K(+), and Cl(-) as shown in Xenopus oocyte system. In addition, WNK4 enhances...
Ge Li et al.
PloS one, 5(6), e11371-e11371 (2010-07-09)
HIV-1 Vpr is a virion-associated protein. Its activities link to viral pathogenesis and disease progression of HIV-infected patients. In vitro, Vpr moderately activates HIV-1 replication in proliferating T cells, but it is required for efficient viral infection and replication in...
Aitor Nogales et al.
Journal of virology, 88(18), 10525-10540 (2014-06-27)
Influenza viral infection represents a serious public health problem that causes contagious respiratory disease, which is most effectively prevented through vaccination to reduce transmission and future infection. The nonstructural (NS) gene of influenza A virus encodes an mRNA transcript that...
Hui Zhang et al.
Nature communications, 9(1), 1218-1218 (2018-03-25)
The Fam20 proteins are novel kinases that phosphorylate secreted proteins and proteoglycans. Fam20C phosphorylates hundreds of secreted proteins and is activated by the pseudokinase Fam20A. Fam20B phosphorylates a xylose residue to regulate proteoglycan synthesis. Despite these wide-ranging and important functions...
Shuai Wang et al.
EMBO reports, 17(8), 1155-1168 (2016-06-18)
Retinoic acid-inducible gene I (RIG-I) and melanoma differentiation-associated gene 5 (MDA5) are cytoplasmic sensors crucial for recognizing different species of viral RNAs, which triggers the production of type I interferons (IFNs) and inflammatory cytokines. Here, we identify RING finger protein...
Yanbin Liu et al.
Cell death & disease, 11(8), 688-688 (2020-08-23)
Our previous study identified a novel VHLα isoform which negatively modulated hnRNPA2B1 expression and therefore influenced pyruvate kinase transcript splicing in renal cancer, while the regulation and initiation of alternative translation are largely unknown. Here we unraveled the CUG-mediated translation...
Nikolay Manavski et al.
Nucleic acids research, 49(10), 5985-5997 (2021-05-27)
Pentatricopeptide repeat (PPR) proteins are helical repeat-proteins that bind RNA in a modular fashion with a sequence-specificity that can be manipulated by the use of an amino acid code. As such, PPR repeats are promising scaffolds for the design of...
Chen Seng Ng et al.
Cell death and differentiation, 27(8), 2363-2382 (2020-02-09)
Host nucleases are implicated in antiviral response through the processing of pathogen-derived nucleic acids. Among many host RNases, decapping enzymes DCP1 and 2, and 5'→3' exonuclease XRN1, which are components of the RNA decay machinery, have been extensively studied in...
Meru J Sadhu et al.
Molecular biology of the cell, 25(10), 1653-1665 (2014-03-22)
In Saccharomyces cerevisiae, transcription of the MET regulon, which encodes the proteins involved in the synthesis of the sulfur-containing amino acids methionine and cysteine, is repressed by the presence of either methionine or cysteine in the environment. This repression is...
Jianlan Gu et al.
The Journal of biological chemistry, 292(25), 10600-10612 (2017-05-11)
Hyperphosphorylation and aggregation of the neuronal protein tau are responsible for neurodegenerative diseases called tauopathies. Dysregulation of the alternative splicing of tau exon 10 results in alterations of the ratio of two tau isoforms, 3R-tau and 4R-tau, which have been...
Wei Zhao et al.
The Journal of cell biology, 212(7), 829-843 (2016-03-24)
Faithful chromosome segregation with bipolar spindle formation is critical for the maintenance of genomic stability. Perturbation of this process often leads to severe mitotic failure, contributing to tumorigenesis. MLL5 has been demonstrated to play vital roles in cell cycle progression...
Margot Riggi et al.
The Journal of cell biology, 218(7), 2265-2276 (2019-05-28)
Target of rapamycin complex 2 (TORC2) is a conserved protein kinase that regulates multiple plasma membrane (PM)-related processes, including endocytosis. Direct, chemical inhibition of TORC2 arrests endocytosis but with kinetics that is relatively slow and therefore inconsistent with signaling being...
Yvonne Heilig et al.
PLoS genetics, 10(4), e1004306-e1004306 (2014-04-26)
Nuclear DBF2p-related (NDR) kinases constitute a functionally conserved protein family of eukaryotic regulators that control cell division and polarity. In fungi, they function as effector kinases of the morphogenesis (MOR) and septation initiation (SIN) networks and are activated by pathway-specific...
Wen-Cheng Chou et al.
The EMBO journal, 27(23), 3140-3150 (2008-10-31)
The DNA damage response (DDR) has an essential function in maintaining genomic stability. Ataxia telangiectasia-mutated (ATM)-checkpoint kinase 2 (Chk2) and ATM- and Rad3-related (ATR)-Chk1, triggered, respectively, by DNA double-strand breaks and blocked replication forks, are two major DDRs processing structurally...
Michael Weber et al.
The Plant journal : for cell and molecular biology, 103(3), 995-1009 (2020-04-22)
The overly zinc sensitive Arabidopsis thaliana mutant ozs3 shows reduced growth of the primary root, which is exacerbated by an excess specifically of Zn ions. In addition, ozs3 plants display various subtle developmental phenotypes, such as longer petioles and early...
Katarina Trajkovic et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 37(37), 9000-9012 (2017-08-20)
Huntington's disease (HD) is an autosomal-dominant neurodegenerative disorder caused by the expansion of a CAG triplet in the gene encoding for huntingtin (Htt). The resulting mutant protein (mHtt) with extended polyglutamine (polyQ) sequence at the N terminus leads to neuronal...
Joshua H K Tam et al.
PloS one, 11(10), e0161445-e0161445 (2016-10-25)
The amyloid hypothesis posits that the production of β-amyloid (Aβ) aggregates leads to neurodegeneration and cognitive decline associated with AD. Aβ is produced by sequential cleavage of the amyloid precursor protein (APP) by β- and γ-secretase. While nascent APP is...
Yiming Zheng et al.
Nature cell biology, 22(3), 297-309 (2020-02-19)
Non-centrosomal microtubule-organizing centres (ncMTOCs) have a variety of roles that are presumed to serve the diverse functions of the range of cell types in which they are found. ncMTOCs are diverse in their composition, subcellular localization and function. Here we...
Dan Qian et al.
PloS one, 6(3), e18300-e18300 (2011-04-16)
Cyanate is toxic to all organisms. Cyanase converts cyanate to CO₂ and NH₃ in a bicarbonate-dependent reaction. The biophysical functions and biochemical characteristics of plant cyanases are poorly studied, although it has been investigated in a variety of proteobacteria, cyanobacteria...
Carol-Ann Eberle et al.
Virology, 462-463, 34-41 (2014-08-06)
Hepatitis C virus (HCV) is a considerable global health and economic burden. The HCV nonstructural protein (NS) 5A is essential for the viral life cycle. The ability of NS5A to interact with different host and viral proteins allow it to...
Norihiro Yumoto et al.
PloS one, 3(10), e3322-e3322 (2008-10-03)
Development of the neuromuscular junction (NMJ) is initiated by the formation of postsynaptic specializations in the central zones of muscles, followed by the arrival of motor nerve terminals opposite the postsynaptic regions. The post- and presynaptic components are then stabilized...
Hiroyasu Konno et al.
Cell, 155(3), 688-698 (2013-10-15)
Activation of the stimulator of interferon genes (STING) pathway by microbial or self-DNA, as well as cyclic dinucleotides (CDNs), results in the induction of numerous genes that suppress pathogen replication and facilitate adaptive immunity. However, sustained gene transcription is rigidly...
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