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Li Huang et al.
Autophagy, 15(3), 407-422 (2018-09-14)
Glucose produced from photosynthesis is a key nutrient signal regulating root meristem activity in plants; however, the underlying mechanisms remain poorly understood. Here, we show that, by modulating reactive oxygen species (ROS) levels, the conserved macroautophagy/autophagy degradation pathway contributes to
Kevin C Corbit et al.
The Journal of biological chemistry, 278(15), 13061-13068 (2003-01-29)
Protein kinase C (PKC) regulates activation of the Raf-1 signaling cascade by growth factors, but the mechanism by which this occurs has not been elucidated. Here we report that one mechanism involves dissociation of Raf kinase inhibitory protein (RKIP) from
Christopher A Brosnan et al.
Nature communications, 12(1), 2194-2194 (2021-04-15)
Multicellularity has coincided with the evolution of microRNAs (miRNAs), small regulatory RNAs that are integrated into cellular differentiation and homeostatic gene-regulatory networks. However, the regulatory mechanisms underpinning miRNA activity have remained largely obscured because of the precise, and thus difficult
Sriram Aravamudhan et al.
Journal of molecular and cellular cardiology, 154, 41-59 (2021-02-08)
Heart development relies on PTMs that control cardiomyocyte proliferation, differentiation and cardiac morphogenesis. We generated a map of phosphorylation sites during the early stages of cardiac postnatal development in mice; we quantified over 10,000 phosphorylation sites and 5000 proteins that
Junji Xing et al.
Nature immunology, 17(12), 1373-1380 (2016-11-01)
The respiratory tract is heavily populated with innate immune cells, but the mechanisms that control such cells are poorly defined. Here we found that the E3 ubiquitin ligase TRIM29 was a selective regulator of the activation of alveolar macrophages, the
Songlin Liu et al.
Frontiers in pharmacology, 10, 1316-1316 (2019-12-04)
Dysregulation of retinoblastoma (Rb) signaling pathway have been established as a requirement for glioblastoma (GBM) initiation and progression, which suggests that blockade of CDK4/6-Rb signaling axis for GBM treatment. Palbociclib, a selective inhibitor of the cyclin-dependent kinases CDK4/6, has been
Shuyang Chen et al.
Nature, 549(7672), 399-403 (2017-09-05)
The melanocortin-1 receptor (MC1R), a G-protein-coupled receptor, has a crucial role in human and mouse pigmentation. Activation of MC1R in melanocytes by α-melanocyte-stimulating hormone (α-MSH) stimulates cAMP signalling and melanin production and enhances DNA repair after ultraviolet irradiation. Individuals carrying
Mai Kishimoto et al.
Viruses, 13(3) (2021-03-07)
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) utilizes host proteases, including a plasma membrane-associated transmembrane protease, serine 2 (TMPRSS2) to cleave and activate the virus spike protein to facilitate cellular entry. Although TMPRSS2 is a well-characterized type II transmembrane serine protease
A Fauster et al.
Cell death & disease, 6, e1767-e1767 (2015-05-23)
Necroptosis is a form of regulated necrotic cell death mediated by receptor-interacting serine/threonine-protein kinase 1 (RIPK1) and RIPK3. Necroptotic cell death contributes to the pathophysiology of several disorders involving tissue damage, including myocardial infarction, stroke and ischemia-reperfusion injury. However, no
Tsz On Lai et al.
The Journal of general virology, 100(3), 484-496 (2019-01-25)
Human papillomavirus (HPV) infection contributes to virtually all cases of cervical cancer, the fourth most common cancer affecting women worldwide. The oncogenicity of HPV is mainly attributable to the E6 and E7 oncoproteins. HPV-52 is the seventh most common HPV
Cheuk Yiu Tenny Chung et al.
Biomedicines, 8(10) (2020-10-15)
BRISC and BRCA1-A complex member 2 (Babam2) plays an essential role in promoting cell cycle progression and preventing cellular senescence. Babam2-deficient fibroblasts show proliferation defect and premature senescence compared with their wild-type (WT) counterpart. Pluripotent mouse embryonic stem cells (mESCs)
Kancharana Bala Bhaskara Rao et al.
FEBS letters, 593(16), 2177-2193 (2019-06-19)
Isocitrate dehydrogenases (IDHs) are metabolic enzymes that are mutated in several cancers, resulting in overproduction of d-2-hydroxyglutarate (D-2HG). However, the signalling pathways and factors that regulate mutant IDHs or their metabolites remain elusive. Here, we report that in synchronized cells
David S Hewings et al.
Nature communications, 9(1), 1162-1162 (2018-03-23)
Activity-based probes (ABPs) are widely used to monitor the activity of enzyme families in biological systems. Inferring enzyme activity from probe reactivity requires that the probe reacts with the enzyme at its active site; however, probe-labeling sites are rarely verified.
Matthew A B Baker et al.
Nature structural & molecular biology, 23(3), 197-203 (2016-02-09)
Large protein complexes assemble spontaneously, yet their subunits do not prematurely form unwanted aggregates. This paradox is epitomized in the bacterial flagellar motor, a sophisticated rotary motor and sensory switch consisting of hundreds of subunits. Here we demonstrate that Escherichia
Chae Young Hwang et al.
The Journal of biological chemistry, 285(10), 7827-7837 (2010-01-08)
Tripartite motif (TRIM) protein TRIM5alpha has been shown to restrict human immunodeficiency virus, type 1 infection in Old World monkey cells at the early post-entry step by poorly understood mechanisms. Currently, the physiological function of TRIM5alpha is not known. In
Ao Zhang et al.
EMBO reports, 21(7), e49666-e49666 (2020-05-01)
Inflammasomes are intracellular complexes that form in the cytosol of inflammatory cells. NLRP3 is one of the sensor proteins in the complex that can recognize a wide variety of stimuli ranging from microbial components to environmental particulates. Here, we report
Wan-Chen Hsieh et al.
Nature communications, 9(1), 463-463 (2018-02-02)
X-linked lymphoproliferative syndrome type-2 (XLP-2) is a primary immunodeficiency disease attributed to XIAP mutation and is triggered by infection. Here, we show that mouse Xiap-/- regulatory T (Treg) cells and human XIAP-deficient Treg cells are defective in suppressive function. The
S Santini et al.
Oncogene, 33(9), 1113-1123 (2013-02-26)
Ataxia Telangiectasia Mutated (ATM) kinase, a central regulator of the DNA damage response, regulates the activity of several E3-ubiquitin ligases, and the ubiquitination-proteasome system is a consistent target of ATM. ITCH is an E3-ubiquitin ligase that modulates the ubiquitination of
Alexey Stukalov et al.
Nature, 594(7862), 246-252 (2021-04-13)
The emergence and global spread of SARS-CoV-2 has resulted in the urgent need for an in-depth understanding of molecular functions of viral proteins and their interactions with the host proteome. Several individual omics studies have extended our knowledge of COVID-19
Cathleen Holze et al.
Nature immunology, 19(2), 130-140 (2017-12-20)
Reactive oxygen species (ROS) are generated by virus-infected cells; however, the physiological importance of ROS generated under these conditions is unclear. Here we found that the inflammation and cell death induced by exposure of mice or cells to sources of
Johannes W Bigenzahn et al.
Molecular & cellular proteomics : MCP, 15(3), 1139-1150 (2016-03-05)
Tandem affinity purification-mass spectrometry (TAP-MS) is a popular strategy for the identification of protein-protein interactions, characterization of protein complexes, and entire networks. Its employment in cellular settings best fitting the relevant physiology is limited by convenient expression vector systems. We
Hua Qi et al.
The Plant cell, 29(4), 890-911 (2017-03-30)
Eukaryotic cells use autophagy to recycle cellular components. During autophagy, autophagosomes deliver cytoplasmic contents to the vacuole or lysosome for breakdown. Mammalian cells regulate the dynamics of autophagy via ubiquitin-mediated proteolysis of autophagy proteins. Here, we show that the
Influenza virus hemagglutinin stalk-based antibodies and vaccines
Krammer F and Palese P
Current Opinion in Virology, 3(5), 521-530 (2013)
Tami Coursey et al.
Journal of virology, 92(16) (2018-06-08)
Histone posttranslational modifications (PTMs) impart information that regulates chromatin structure and activity. Their effects are mediated by histone reader proteins that bind specific PTMs to modify chromatin and/or recruit appropriate effectors to alter the chromatin landscape. Despite their crucial juxtaposition
Jing Du et al.
Molecular carcinogenesis, 58(11), 2149-2160 (2019-08-27)
Autophagy is a self-proteolytic process that degrades intracellular material to maintain cellular homeostasis. Transcription factor EB (TFEB) is the master activator that regulates the transcription of genes involved in autophagy and lysosomal biogenesis. However, the cotranscriptional factors of TFEB are
Mathivanan Jothi et al.
Cell cycle (Georgetown, Tex.), 11(5), 895-908 (2012-02-16)
The chimeric PAX3-FKHR transcription factor is present in a majority of alveolar rhabdomyosarcoma (ARMS), an aggressive skeletal muscle cancer of childhood. PAX3-FKHR-mediated aberrant myogenic gene expression resulting in escape from terminal differentiation program is believed to contribute in ARMS development.
Qian Wang et al.
Nature communications, 11(1), 679-679 (2020-02-06)
Auxin determines the developmental fate of plant tissues, and local auxin concentration is precisely controlled. The role of auxin transport in modulating local auxin concentration has been widely studied but the regulation of local auxin biosynthesis is less well understood.
Eric Soupene et al.
Journal of lipid research, 57(2), 288-298 (2015-12-02)
The covalent attachment of a 14-carbon aliphatic tail on a glycine residue of nascent translated peptide chains is catalyzed in human cells by two N-myristoyltransferase (NMT) enzymes using the rare myristoyl-CoA (C(14)-CoA) molecule as fatty acid donor. Although, NMT enzymes
Paulina Bartuzi et al.
Nature communications, 7, 10961-10961 (2016-03-12)
The low-density lipoprotein receptor (LDLR) plays a pivotal role in clearing atherogenic circulating low-density lipoprotein (LDL) cholesterol. Here we show that the COMMD/CCDC22/CCDC93 (CCC) and the Wiskott-Aldrich syndrome protein and SCAR homologue (WASH) complexes are both crucial for endosomal sorting
Joanna F McGouran et al.
Chemistry & biology, 20(12), 1447-1455 (2013-12-03)
Posttranslational modification with ubiquitin (Ub) controls many cellular processes, and aberrant ubiquitination can contribute to cancer, immunopathology, and neurodegeneration. The versatility arises from the ability of Ub to form polymer chains with eight distinct linkages via lysine side chains and
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