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Yun Zhao et al.
Nature communications, 10(1), 1349-1349 (2019-03-25)
During infection, transcription factor interferon regulatory factor 5 (IRF5) is essential for the control of host defense. Here we show that the microtubule-associated guanine nucleotide exchange factor (GEF)-H1, is required for the phosphorylation of IRF5 by microbial muramyl-dipeptides (MDP), the
Jia Yu et al.
PloS one, 6(5), e19511-e19511 (2011-06-01)
The multi-functional NS1 protein of influenza A virus is a viral virulence determining factor. The last four residues at the C-terminus of NS1 constitute a type I PDZ domain binding motif (PBM). Avian influenza viruses currently in circulation carry an
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
Ami Patel et al.
Nature communications, 6, 10119-10119 (2015-12-15)
Down syndrome is the most common chromosomal disorder affecting the nervous system in humans. To date, investigations of neural anomalies in Down syndrome have focused on the central nervous system, although dysfunction of the peripheral nervous system is a common
Yusuke Sato et al.
The Journal of biological chemistry, 287(31), 25860-25868 (2012-06-09)
UBC13 is the only known E2 ubiquitin (Ub)-conjugating enzyme that produces Lys-63-linked Ub chain with its cofactor E2 variant UEV1a or MMS2. Lys-63-linked ubiquitination is crucial for recruitment of DNA repair and damage response molecules to sites of DNA double-strand
Mun-Kit Choy et al.
Journal of cellular physiology, 222(3), 635-639 (2009-12-02)
Cross-talk between the two transcription factors, p53 and hypoxia inducible factor 1alpha (HIF1A), is important in different pathophysiological conditions (Hammond and Giaccia, 2006, Clin Cancer Res 12:5007-5009) such as in the transition from myocardial hypertrophy to cardiac dilatation and heart
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
Katarina Holmborn et al.
The Journal of biological chemistry, 287(40), 33905-33916 (2012-08-08)
The present study addresses the roles of heparan sulfate (HS) proteoglycans and chondroitin sulfate (CS) proteoglycans in the development of zebrafish pharyngeal cartilage structures. uxs1 and b3gat3 mutants, predicted to have impaired biosynthesis of both HS and CS because of
Wei Wei et al.
Cellular microbiology, 14(11), 1745-1756 (2012-07-11)
HIV-2 and closely related SIV Vpx proteins are essential for viral replication in macrophages and dendritic cells. Vpx hijacks DCAF1-DDB1-Cul4 E3 ubiquitin ligase to promote viral replication. DCAF1 is essential for cell proliferation and embryonic development and is responsible for
Sarah T Bauer et al.
The Journal of eukaryotic microbiology, 64(1), 97-105 (2016-06-25)
Trypanosoma brucei is the causative agent of diseases that affect 30,000-50,000 people annually. Trypanosoma brucei harbors unique organelles named glycosomes that are essential to parasite survival, which requires growth under fluctuating environmental conditions. The mechanisms that govern the biogenesis of
Kuo-Chieh Liao et al.
Infection and immunity, 81(2), 570-579 (2012-12-12)
The efficacy of the innate immune system depends on its ability to mount an appropriate response to diverse infections and damaging agents. Key components of this system are pattern recognition receptors that detect pathogen-associated and damage-associated molecular patterns (PAMPs and
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
Ke-Qin Gong et al.
Molecular and cellular biology, 27(21), 7661-7668 (2007-09-06)
During embryonic development, the anterior-posterior body axis is specified in part by the combinatorial activities of Hox genes. Given the poor DNA binding specificity of Hox proteins, their interaction with cofactors to regulate target genes is critical. However, few regulatory
Yu Pang et al.
Nature structural & molecular biology, 26(4), 289-296 (2019-03-27)
Ubiquitin or ubiquitin-like proteins can be covalently conjugated to multiple proteins that do not necessarily have binding interfaces. Here, we show that an evolutionary transition from covalent conjugation to non-covalent interaction has occurred in the ubiquitin-like autophagy-related 12 (ATG12) conjugation
Jakob Hartmann et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 35(24), 9007-9016 (2015-06-19)
Anxiety-related psychiatric disorders represent one of the largest health burdens worldwide. Single nucleotide polymorphisms of the FK506 binding protein 51 (FKBP51) gene have been repeatedly associated with anxiety-related disorders and stress sensitivity. Given the intimate relationship of stress and anxiety
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
Yalcin Erzurumlu et al.
Scientific reports, 7, 40719-40719 (2017-01-17)
The endoplasmic reticulum (ER) comprises thirty percent of the newly translated proteins in eukaryotic cells. The quality control mechanism within the ER distinguishes between properly and improperly folded proteins and ensures that unwanted proteins are retained in the ER and
Christopher W Wasson et al.
Oncotarget, 8(61), 103581-103600 (2017-12-22)
Deregulation of proliferation and differentiation-dependent signalling pathways is a hallmark of human papillomavirus (HPV) infection. Although the manipulation of these pathways by E6 and E7 has been extensively studied, controversies surround the role of the E5 oncoprotein during a productive
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
Ying-Ping Huang et al.
Journal of experimental botany, 68(17), 4765-4774 (2017-10-11)
To establish a successful infection, a virus needs to replicate and move cell-to-cell efficiently. We investigated whether one of the genes upregulated in Nicotiana benthamiana after Bamboo mosaic virus (BaMV) inoculation was involved in regulating virus movement. We revealed the
Fumiyoshi Myouga et al.
The Plant cell, 20(11), 3148-3162 (2008-11-11)
There are three iron superoxide dismutases in Arabidopsis thaliana: FE SUPEROXIDE DISMUTASE1 (FSD1), FSD2, and FSD3. Their biological roles in chloroplast development are unknown. Here, we show that FSD2 and FSD3 play essential roles in early chloroplast development, whereas FSD1
George E Gentsch et al.
Developmental cell, 44(5), 597-610 (2018-02-27)
Antisense morpholino oligomers (MOs) have been indispensable tools for developmental biologists to transiently knock down (KD) genes rather than to knock them out (KO). Here we report on the implications of genetic KO versus MO-mediated KD of the mesoderm-specifying Brachyury
Tingting Li et al.
Journal of cell science, 127(Pt 10), 2238-2248 (2014-03-19)
NEDD8 is an important regulatory factor in many biological processes. However, the substrates for neddylation, and the relationship between the ubiquitin and NEDD8 pathways remain largely unknown. Here, we show that NEDD8 is covalently conjugated to histone 2A (H2A), and
Keumbi Hwang et al.
Molecular plant, 12(4), 489-505 (2019-01-15)
The drought-escape response accelerates flowering in response to drought stress, allowing plants to adaptively shorten their life cycles. Abscisic acid (ABA) mediates plant responses to drought, but the role of ABA-responsive element (ABRE)-binding factors (ABFs) in the drought-escape response is
Guojun Shi et al.
The Journal of clinical investigation, 127(10), 3897-3912 (2017-09-19)
Peptide hormones are crucial regulators of many aspects of human physiology. Mutations that alter these signaling peptides are associated with physiological imbalances that underlie diseases. However, the conformational maturation of peptide hormone precursors (prohormones) in the ER remains largely unexplored.
Hua Wei et al.
Neuropharmacology, 56(2), 399-404 (2008-10-01)
The transporters of dopamine, norepinephrine and serotonin are molecular targets of cocaine, amphetamine, and therapeutic antidepressants. The residues involved in binding these drugs are unknown. We have performed several rounds of random and site-directed mutagenesis in the mouse norepinephrine transporter
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
Rehana Omar et al.
Cancer letters, 459, 227-239 (2019-06-17)
The developmentally important T-box transcription factor TBX3, is overexpressed in several cancers and contributes to tumorigenesis as either a tumour promoter or tumour suppressor. For example, TBX3 promotes cell proliferation, migration and invasion of chondrosarcoma cells but inhibits these processes
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