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Stella Bernardo-García et al.
Genes & development, 28(15), 1681-1694 (2014-08-03)
Signaling by the hormones brassinosteroid (BR) and gibberellin (GA) is critical to normal plant growth and development and is required for hypocotyl elongation in response to dark and elevated temperatures. Active BR signaling is essential for GA promotion of hypocotyl
Giulia De Rossi et al.
Journal of cell science, 127(Pt 21), 4788-4799 (2014-09-03)
Angiogenesis is essential for the development of a normal vasculature, tissue repair and reproduction, and also has roles in the progression of diseases such as cancer and rheumatoid arthritis. The heparan sulphate proteoglycan syndecan-2 is expressed on mesenchymal cells in
J-M Liao et al.
Oncogene, 33(41), 4916-4923 (2013-10-22)
Oncogene MYC is highly expressed in many human cancers and functions as a global regulator of ribosome biogenesis. Previously, we reported that ribosomal protein (RP) L11 binds to c-Myc and inhibits its transcriptional activity in response to ribosomal stress. Here
Luis N Brandão et al.
Genetics, 197(4), 1111-1122 (2014-05-31)
The yeast Dbf4-dependent kinase (DDK) (composed of Dbf4 and Cdc7 subunits) is an essential, conserved Ser/Thr protein kinase that regulates multiple processes in the cell, including DNA replication, recombination and induced mutagenesis. Only DDK substrates important for replication and recombination
Denis Basquin et al.
PloS one, 9(5), e96802-e96802 (2014-05-14)
Heterochromatin is made of repetitive sequences, mainly transposable elements (TEs), the regulation of which is critical for genome stability. We have analyzed the role of the heterochromatin-associated Su(var)3-7 protein in Drosophila ovaries. We present evidences that Su(var)3-7 is required for
Hosouk Joung et al.
Cellular signalling, 26(10), 2240-2248 (2014-07-16)
Skeletal muscle atrophy results from the net loss of muscular proteins and organelles and is caused by pathologic conditions such as nerve injury, immobilization, cancer, and other metabolic diseases. Recently, ubiquitination-mediated degradation of skeletal-muscle-specific transcription factors was shown to be
Naoya Hirata et al.
Nature communications, 5, 4806-4806 (2014-09-26)
Many tumours originate from cancer stem cells (CSCs), which is a small population of cells that display stem cell properties. However, the molecular mechanisms that regulate CSC frequency remain poorly understood. Here, using microarray screening in aldehyde dehydrogenase (ALDH)-positive CSC
Stephanie May et al.
Acta neuropathologica, 128(4), 485-503 (2014-08-15)
Hexanucleotide repeat expansion in C9orf72 is the most common pathogenic mutation in patients with amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD). Despite the lack of an ATG start codon, the repeat expansion is translated in all reading frames
Clara Andrea Solari et al.
The Biochemical journal, 462(3), 567-579 (2014-06-21)
PKA (cAMP-dependent protein kinase) activity, as well as that of other AGC members, is regulated by multiple phosphorylations of its catalytic subunits. In Saccharomyces cerevisiae, the PKA regulatory subunit is encoded by the gene BCY1, and the catalytic subunits are
Adnan Y Chowdhury et al.
Virology, 456-457, 300-309 (2014-06-04)
We previously found that human pegivirus (HPgV; formerly GBV-C) NS3 protease activity inhibits Human Immunodeficiency Virus (HIV) replication in a CD4+ T cell line. Given the protease׳s similarity to the Hepatitis C virus (HCV) NS3 protease, we characterized HPgV protease
M N Garas et al.
Acta naturae, 6(2), 95-105 (2014-08-06)
Current targeting strategies for genetic vectors imply the creation of a specific vector for every targeted receptor, which is time-consuming and expensive. Therefore, the development of a universal vector system whose surface can specifically bind molecules to provide efficient targeting
A C James et al.
Biochimica et biophysica acta, 1843(7), 1272-1284 (2014-03-29)
Notch4 is a divergent member of the Notch family of receptors that is primarily expressed in the vasculature. Its expression implies an important role for Notch4 in the vasculature; however, mice homozygous for the Notch4(d1) knockout allele are viable. Since
Nicholas C Wu et al.
Journal of virology, 88(17), 10157-10164 (2014-06-27)
Viral proteins often display several functions which require multiple assays to dissect their genetic basis. Here, we describe a systematic approach to screen for loss-of-function mutations that confer a fitness disadvantage under a specified growth condition. Our methodology was achieved
Menattallah Elserafy et al.
Current biology : CB, 24(13), 1456-1466 (2014-06-24)
The spindle pole body (SPB) of budding yeast is the functional equivalent of the mammalian centrosome. Like the centrosome, the SPB duplicates once per cell cycle. The new SPB assembles adjacent to the mother SPB at a substructure called the
Jade Louber et al.
PloS one, 9(9), e108770-e108770 (2014-09-27)
Effective host defence against viruses depends on the rapid triggering of innate immunity through the induction of a type I interferon (IFN) response. To this end, microbe-associated molecular patterns are detected by dedicated receptors. Among them, the RIG-I-like receptors RIG-I
Pamela Nicholson et al.
Nucleic acids research, 42(14), 9217-9235 (2014-07-24)
Eukaryotic mRNAs with premature translation-termination codons (PTCs) are recognized and eliminated by nonsense-mediated mRNA decay (NMD). NMD substrates can be degraded by different routes that all require phosphorylated UPF1 (P-UPF1) as a starting point. The endonuclease SMG6, which cleaves mRNA
Kai Jiang et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(45), E4842-E4850 (2014-10-29)
Smoothened (Smo) is essential for transduction of the Hedgehog (Hh) signal in both insects and vertebrates. Cell surface/cilium accumulation of Smo is thought to play an important role in Hh signaling, but how the localization of Smo is controlled remains
Mariko Hirano et al.
The Journal of cell biology, 182(6), 1217-1230 (2008-09-17)
EPB41L5 belongs to the band 4.1 superfamily. We investigate here the involvement of EPB41L5 in epithelial-mesenchymal transition (EMT) during mouse gastrulation. EPB41L5 expression is induced during TGFbeta-stimulated EMT, whereas silencing of EPB41L5 by siRNA inhibits this transition. In EPB41L5 mutants
Edward C Goodwin et al.
PloS one, 9(4), e94322-e94322 (2014-04-16)
DNAJB12 and DNAJB14 are transmembrane proteins in the endoplasmic reticulum (ER) that serve as co-chaperones for Hsc70/Hsp70 heat shock proteins. We demonstrate that over-expression of DNAJB12 or DNAJB14 causes the formation of elaborate membranous structures within cell nuclei, which we
Mark E Reeves et al.
PloS one, 9(7), e101679-e101679 (2014-07-10)
RASSF1C is a major isoform of the RASSF1 gene, and is emerging as an oncogene. This is in contradistinction to the RASSF1A isoform, which is an established tumor suppressor. We have previously shown that RASSF1C promotes lung cancer cell proliferation
M Rocío Delgado-Díaz et al.
Molecular oncology, 8(5), 884-893 (2014-04-08)
A crucial event in the DNA damage response is the phosphorylation and subsequent ubiquitination of H2AX, required for the recruitment of proteins involved in DNA repair. Here we identify a novel regulator of this process, the ubiquitin hydrolase Dub3. Overexpression
S B Ma et al.
Cell death and differentiation, 21(12), 1925-1935 (2014-08-26)
In non-apoptotic cells, Bak constitutively resides in the mitochondrial outer membrane. In contrast, Bax is in a dynamic equilibrium between the cytosol and mitochondria, and is commonly predominant in the cytosol. In response to an apoptotic stimulus, Bax and Bak
Borislav Dejanovic et al.
PLoS biology, 12(7), e1001908-e1001908 (2014-07-16)
Postsynaptic scaffolding proteins regulate coordinated neurotransmission by anchoring and clustering receptors and adhesion molecules. Gephyrin is the major instructive molecule at inhibitory synapses, where it clusters glycine as well as major subsets of GABA type A receptors (GABAARs). Here, we
Ju Liu et al.
Cell death and differentiation, 21(11), 1792-1804 (2014-08-26)
Tumor suppressor p53 has a key role in maintaining genomic stability and preventing tumorigenesis through its regulation of cellular stress responses, including apoptosis, cell cycle arrest and senescence. To ensure its proper levels and functions in cells, p53 is tightly
F Yu et al.
Oncogene, 33(20), 2601-2609 (2013-07-16)
RUNX3, a runt-related transcription factor, has a crucial role in dorsal root ganglion neurogenesis. Recent studies have suggested that RUNX3 acts as a tumor suppressor in stomach, colon and breast cancer. However, the biological role of RUNX3 in neuroblastoma remains
Xi Tang et al.
Oncotarget, 5(5), 1352-1362 (2014-03-25)
The development of effective therapies inhibiting prostate cancer progression and metastasis may substantially impact prostate cancer mortality and potentially reduce the rates of invasive treatments by enhancing the safety of active surveillance strategies. Hepsin (HPN) is a cell surface serine
Prabhat Khadka et al.
The Biochemical journal, 463(1), 19-30 (2014-07-12)
Human telomeres associate with shelterin, a six-protein complex that protects chromosome ends from being recognized as sites of DNA damage. The shelterin subunit TRF2 (telomeric repeat-binding factor 2) protects telomeres by facilitating their organization into the protective capping structure. We
Laura R Kuck et al.
PloS one, 9(10), e109616-e109616 (2014-10-21)
Titer on Chip (Flu-ToC) is a new technique for quantification of influenza hemagglutinin (HA) concentration. In order to evaluate the potential of this new technique, a comparison of Flu-ToC to more conventional methods was conducted using recombinant HA produced in
Dilshan Balasuriya et al.
FEBS letters, 588(17), 2874-2880 (2014-07-06)
Depletion of Ca(2+) from the endoplasmic reticulum (ER) lumen triggers the opening of Ca(2+) release-activated Ca(2+) (CRAC) channels at the plasma membrane. CRAC channels are activated by stromal interaction molecule 1 (STIM1), an ER resident protein that senses Ca(2+) store
Takako Niikura et al.
PloS one, 9(6), e101080-e101080 (2014-06-28)
Mutations in superoxide dismutase 1 (SOD1) are a major cause of familial amyotrophic lateral sclerosis (ALS), whereby the mutant proteins misfold and aggregate to form intracellular inclusions. We report that both small ubiquitin-like modifier (SUMO) 1 and SUMO2/3 modify ALS-linked
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