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https://www.readbyqxmd.com/read/28527624/understanding-aerobic-anaerobic-metabolism-in-caldibacillus-debilis-through-a-comparison-with-model-organisms
#1
Scott Wushke, Victor Spicer, Xiang Li Zhang, Brian Fristensky, Oleg V Krokhin, David B Levin, Nazim Cicek, Richard Sparling
Caldibacillus debilis GB1 is a facultative anaerobe isolated from a thermophilic aero-tolerant cellulolytic enrichment culture. There is a lack of representative proteomes of facultative anaerobic thermophilic Bacillaceae, exploring aerobic/anaerobic expression. The C. debilis GB1 genome was sequenced and annotated, and the proteome characterized under aerobic and anaerobic conditions while grown on cellobiose. The draft sequence of C. debilis GB1 contains a 3,340,752 bp chromosome and a 5,386 bp plasmid distributed over 49 contigs...
April 13, 2017: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/28527408/subcellular-localization-based-comparative-study-on-radioresistant-bacteria-a-novel-approach-to-mine-proteins-involve-in-radioresistance
#2
Divya Vishambra, Malay Srivastava, Kamal Dev, Varun Jaiswal
Radioresistant bacteria (RRB) are among the most radioresistant organisms and has a unique role in evolution. Along with the evolutionary role, radioresistant organisms play important role in paper industries, bioremediation, vaccine development and possibility in anti-aging and anti-cancer treatment. The study of radiation resistance in RRB was mainly focused on cytosolic mechanisms such as DNA repair mechanism, cell cleansing activity and high antioxidant activity. Although it was known that protein localized on outer areas of cell play role in resistance towards extreme condition but the mechanisms/proteins localized on the outer area of cells are not studied for radioresistance...
May 10, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28525741/in%C3%A2-vivo-ubiquitin-linkage-type-analysis-reveals-that-the-cdc48-rad23-dsk2-axis-contributes-to-k48-linked-chain-specificity-of-the-proteasome
#3
Hikaru Tsuchiya, Fumiaki Ohtake, Naoko Arai, Ai Kaiho, Sayaka Yasuda, Keiji Tanaka, Yasushi Saeki
Ubiquitin-binding domain (UBD) proteins regulate numerous cellular processes, but their specificities toward ubiquitin chain types in cells remain obscure. Here, we perform a quantitative proteomic analysis of ubiquitin linkage-type selectivity of 14 UBD proteins and the proteasome in yeast. We find that K48-linked chains are directed to proteasomal degradation through selectivity of the Cdc48 cofactor Npl4. Mutating Cdc48 results in decreased selectivity, and lacking Rad23/Dsk2 abolishes interactions between ubiquitylated substrates and the proteasome...
May 18, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28525648/the-role-of-omics-in-the-application-of-adverse-outcome-pathways-for-chemical-risk-assessment
#4
Erica K Brockmeier, Geoff Hodges, Thomas H Hutchinson, Emma Butler, Markus Hecker, Knut Erik Tollefsen, Natalia Garcia-Reyero, Peter Kille, Dörthe Becker, Kevin Chipman, John Colbourne, Timothy W Collette, Andrew Cossins, Mark Cronin, Peter Graystock, Steve Gutsell, Dries Knapen, Ioanna Katsiadaki, Anke Lange, Stuart Marshall, Stewart F Owen, Edward J Perkins, Stewart Plaistow, Anthony Schroeder, Daisy Taylor, Mark Viant, Gerald Ankley, Francesco Falciani
In conjunction with the second International Environmental Omics Symposium (iEOS) conference, held at the University of Liverpool (UK) in September 2014, a workshop was held to bring together experts in toxicology and regulatory science from academia, government and industry. The purpose of the workshop was to review the specific roles that high-content omics datasets (e.g., transcriptomics, metabolomics, lipidomics, and proteomics) can hold within the adverse outcome pathway (AOP) framework for supporting ecological and human health risk assessments...
May 19, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28525563/omics-biomarkers-in-ophthalmology
#5
Susette Lauwen, Eiko K de Jong, Dirk J Lefeber, Anneke I den Hollander
"Omics" refers to high-throughput analyses of genes, proteins, or metabolites in a biological system, and is increasingly used for ophthalmic research. These system-based approaches can unravel disease-related processes and are valuable for biomarker discovery. Furthermore, potential therapeutic targets can be identified based on omics results, and targeted follow-up experiments can be designed to gain molecular understanding of the disease and to test new therapies. Here, we review the application of omics techniques in eye diseases, focusing on age-related macular degeneration (AMD), diabetic retinopathy (DR), retinal detachment (RD), myopia, glaucoma, Fuchs' corneal dystrophy (FCD), cataract, keratoconus, and dry eyes...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28525284/intrinsically-disordered-proteins-as-important-players-during-desiccation-stress-of-the-soybean-radicles
#6
Yun Liu, Jiahui Wu, Nan Sun, Chengjian Tu, Xiaoying Shi, Hua Cheng, Simu Liu, Shuiming Li, Yong Wang, Yizhi Zheng, Vladimir N Uversky
Intrinsically disordered proteins (IDPs) play a variety of important physiological roles in all living organisms. However, there is no comprehensive analysis of the abundance of IDPs associated with environmental stress in plants. Here, we show that a set of heat-stable proteins (i.e., proteins that do not denature after boiling at 100°C for 10 min) was present in R0mm and R15mm radicles (i.e., before the radicle emergence and the 15 mm long radicles) of soybean (Glycine max) seeds. This set of 795 iTRAQ-quantified heat-stable proteins contained a high proportion of wholly or highly disordered proteins (15%), which was significantly higher than that estimated for the whole soybean proteome containing 55,787 proteins (9%)...
May 19, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28524624/pulmonary-arterial-hypertension-progress-in-understanding-the-disease-and-prioritizing-strategies-for-drug-development
#7
REVIEW
P Ghataorhe, C J Rhodes, L Harbaum, M Attard, J Wharton, M R Wilkins
Pulmonary arterial hypertension (PAH), at one time a largely overlooked disease, is now the subject of intense study in many academic and biotech groups. The availability of new treatments has increased awareness of the condition. This in turn has driven a change in the demographics of PAH, with an increase in the mean age at diagnosis. The diagnosis of PAH in more elderly patients has highlighted the need for careful phenotyping of patients and for further studies to understand how best to manage pulmonary hypertension associated with, for example, left heart disease...
May 19, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28524240/potential-serum-biomarkers-associated-with-mild-and-severe-leptospirosis-infection-a-cohort-study-in-the-malaysian-population
#8
Tan Xue Ting, Fairuz Binti Amran, Ravindran Thayan, Norazah Ahmad, Roslinda Jaafar, Rahimah Haron, Rafidah Abdullah, Sazwan Reezal Bin Shamsuddin, Nor Suhaila Binti Md Riffin, Puteri Shafinaz Abdul-Rahman
Leptospirosis is an emerging zoonotic infectious disease in Malaysia. The symptoms of leptospirosis vary from mild non-specific flu-like illness to a severe condition which is usually associated with serious complication and fatality. To study the protein expression profile of mild and severe leptospirosis, fifteen paired sera were collected from the patients who were mildly infected and following that progressed to severe stage. The proteome profiles of mild and severe cases were studied using 2DE analysis in combination with LC-MS/MS...
May 19, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28524200/isolation-of-a-novel-bioactive-protein-from-an-edible-mushroom-pleurotus-eryngii-and-its-anti-inflammatory-potential
#9
Biao Yuan, Liyan Zhao, Kanyasiri Rakariyatham, Yanhui Han, Zili Gao, Benard Muinde Kimatu, Qiuhui Hu, Hang Xiao
Edible mushrooms are rich sources of bioactive components. In this study, a bioactive protein, PEP, was isolated from an edible mushroom, Pleurotus eryngii, through (NH4)2SO4 precipitation and ion-exchange chromatography. Proteomic analysis by matrix assisted laser desorption ionization-time of flight mass spectrometry showed that PEP was a novel protein with a molecular weight of 40 kDa. PEP exhibited anti-inflammatory effects in LPS-stimulated RAW 264.7 macrophages by inhibiting the overproduction of pro-inflammatory mediators including nitric oxide (NO), cytokine IL-1β and IL-6...
May 19, 2017: Food & Function
https://www.readbyqxmd.com/read/28524115/label-free-quantitative-proteomic-analysis-of-chitosan-oligosaccharide-treated-rice-infected-with-southern-rice-black-streaked-dwarf-virus
#10
Anming Yang, Lu Yu, Zhuo Chen, Shanxue Zhang, Jing Shi, Xiaozhen Zhao, Yuanyou Yang, Deyu Hu, Baoan Song
Southern rice black-streaked dwarf virus (SRBSDV) has spread from thesouth of China to the north of Vietnam in the past few years and severelyinfluenced rice production. Its long incubation period and early symptoms are not evident; thus, controlling it is difficult. Chitosan oligosaccharide (COS) is a green plant immunomodulator. Early studies showed that preventing and controlling SRBSDV have a certain effect and reduce disease infection rate, but its underlying controlling and preventing mechanism is unclear...
May 18, 2017: Viruses
https://www.readbyqxmd.com/read/28523998/uncovering-drug-mechanism-of-action-by-proteome-wide-identification-of-drug-binding-proteins
#11
Tao Cui, Hai Hou, Yao Sun, Huaixing Cang, Xiangxi Wang
Small molecule drugs obtained from synthetic compounds or natural products show their therapeutic effects by specifically binding to one or a few target proteins and modulating their functions. In contrast, undesirable drug-protein interactions may provoke harmful side effects. Furthermore, drug-protein interactions also play roles in drug activation, transport, metabolism and regulation of drug resistance. Therefore, systematically identifying binding proteins of a drug molecule is critical for understanding the mechanism of action of the drug at molecular level...
May 18, 2017: Medicinal Chemistry
https://www.readbyqxmd.com/read/28523741/comparative-membrane-proteomics-analyses-of-breast-cancer-cell-lines-to-understand-the-molecular-mechanism-of-breast-cancer-brain-metastasis
#12
Wenjing Peng, Yu Zhang, Rui Zhu, Yehia Mechref
Breast cancer is the leading type of cancer in women. Breast cancer brain metastasis is currently considered an issue of concern among breast cancer patients. Membrane proteins play important roles in breast cancer brain metastasis, involving cell adhesion and penetration of blood-brain barrier. To understand the mechanism of breast cancer brain metastasis, liquid chromatography-tandem mass spectrometry (LC-MS/MS) was employed in conjunction with enrichment of membrane proteins to analyze the proteomes from 5 different breast cancer and a brain cancer cell lines...
May 19, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28523566/radial-glia-cells-control-angiogenesis-in-the-developing-cerebral-cortex-through-tgf-%C3%AE-1-signaling
#13
Michele Siqueira, Daniel Francis, Diego Gisbert, Flávia Carvalho Alcantara Gomes, Joice Stipursky
Neuroangiogenesis in the developing central nervous system is controlled by interactions between endothelial cells (ECs) and radial glia (RG) neural stem cells, although RG-derived molecules implicated in these events are not fully known. Here, we investigated the role of RG-secreted TGF-β1, in angiogenesis in the developing cerebral cortex. By isolation of murine microcapillary brain endothelial cells (MBECs), we demonstrate that conditioned medium from RG cultures (RG-CM) promoted MBEC migration and formation of vessel-like structures in vitro, in a TGF-β1-dependent manner...
May 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28523344/role-of-g3bp1-in-glucocorticoid-receptor-mediated-microrna-15b-and-microrna-23a-biogenesis-in-endothelial-cells
#14
Hoi-Hin Kwok, Po-Ying Poon, Kylie Hin-Man Mak, Lin-Yao Zhang, Pei Liu, Huoming Zhang, Nai-Ki Mak, Patrick Ying-Kit Yue, Ricky Ngok-Shun Wong
MicroRNAs (miRNAs) are a family of non-coding RNAs that play crucial roles in regulating various normal cellular responses. Recent studies revealed that the canonical miRNA biogenesis pathway is subject to sophisticated regulation. Hormonal control of miRNA biogenesis by androgen and estrogen has been demonstrated, but the direct effects of the glucocorticoid receptor (GR) on miRNA biogenesis are unknown. This study revealed the role of GR in miRNA maturation. We showed that two GR agonists, dexamethasone and ginsenoside-Rg1 rapidly suppressed the expression of mature miR-15b, miR-23a, and miR-214 in human endothelial cells...
May 18, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28523289/core-canonical-pathways-involved-in-developing-human-glioblastoma-multiforme-gbm
#15
Somiranjan Ghosh, Sisir Dutta, Gabriel Thorne, Ava Boston, Alexis Barfield, Narendra Banerjee, Rayshawn Walker, Hirendra Nath Banerjee
Glioblastoma multiforme (GBM) is the most common and aggressive type of the primary brain tumors with pathologic hallmarks of necrosis and vascular proliferation. The diagnosis of GBM is currently mostly based on histological examination of brain tumor tissues, after radiological characterization and surgical biopsy. The ability to characterize tumors comprehensively at the molecular level raises the possibility that diagnosis can be made based on molecular profiling with or without histological examination, rather than solely on histological phenotype...
February 2017: Int J Sci Res Sci Eng Technol
https://www.readbyqxmd.com/read/28522876/comparative-proteomic-analysis-of-the-mitochondria-associated-er-membrane-mam-in-a-long-term-type-2-diabetic-rodent-model
#16
Jacey Hongjie Ma, Shichen Shen, Joshua J Wang, Zhanwen He, Amanda Poon, Jun Li, Jun Qu, Sarah X Zhang
The mitochondria-associated ER membrane (MAM) plays a critical role in cellular energetics and calcium homeostasis; however, how MAM is affected under diabetic condition remains elusive. This study presented a comprehensive proteome profiling of isolated brain MAM from long-term type 2 diabetic mice vs. non-diabetic controls. MAM protein was extracted efficiently by a surfactant-aided precipitation/on-pellet digestion (SOD) method, and MAM proteome was quantified by an ion-current-based MS1 method combined with nanoLC-MS/MS...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522802/proteome-remodelling-by-the-stress-sigma-factor-rpos-%C3%AF-s-in-salmonella-identification-of-small-proteins-and-evidence-for-post-transcriptional-regulation
#17
Magali Lago, Véronique Monteil, Thibaut Douche, Julien Guglielmini, Alexis Criscuolo, Corinne Maufrais, Mariette Matondo, Françoise Norel
The RpoS/σ(S) sigma subunit of RNA polymerase is the master regulator of the general stress response in many Gram-negative bacteria. Extensive studies have been conducted on σ(S)-regulated gene expression at the transcriptional level. In contrast, very limited information regarding the impact of σ(S) on global protein production is available. In this study, we used a mass spectrometry-based proteomics approach to explore the wide σ(S)-dependent proteome of the human pathogen Salmonella enterica serovar Typhimurium...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522608/altered-learning-memory-and-social-behavior-in-type-1-taste-receptor-subunit-3-knockout-mice-is-associated-with-neuronal-dysfunction
#18
Bronwen Martin, Rui Wang, Wei-Na Cong, Caitlin M Daimon, Wells W Wu, Bin Ni, Kevin G Becker, Elin Lehrmann, William H Wood, Yongqing Zhang, Harmonie Etienne, Jaana van Gastel, Abdelkrim Azmi, Jonathan Janssens, Stuart Maudsley
The type 1 taste receptor member 3 (T1R3) is a G protein-coupled receptor (GPCR) involved in sweet taste perception. Besides the tongue, the T1R3 receptor is highly expressed in brain areas implicated in cognition, including the hippocampus and cortex. As cognitive decline is often preceded by significant metabolic or endocrinological dysfunctions, regulated by the sweet taste perception system, we hypothesized that a disruption of the sweet taste perception in the brain could have a key role in the development of cognitive dysfunction...
May 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28522341/systemic-and-ocular-fluid-compounds-as-potential-biomarkers-in-age-related-macular-degeneration
#19
REVIEW
Eveline Kersten, Constantin C Paun, Rosa L Schellevis, Carel B Hoyng, Cécile Delcourt, Imre Lengyel, Tunde Peto, Marius Ueffing, Caroline C W Klaver, Sascha Dammeier, Anneke I den Hollander, Eiko K de Jong
Biomarkers can help unravel mechanisms of disease and identify new targets for therapy. They can also be useful in clinical practice for monitoring disease progression, evaluation of treatment efficacy and risk assessment in multifactorial diseases, such as age-related macular degeneration (AMD). AMD is a highly prevalent progressive retinal disorder for which multiple genetic and environmental risk factors have been described, but the exact etiology is not yet fully understood. Many compounds have been evaluated for their association with AMD...
May 15, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28521489/identification-of-proteins-with-different-abundance-associated-with-cell-migration-and-proliferation-in-leiomyoma-interstitial-fluid-by-proteomics
#20
Blendi Ura, Federica Scrimin, Cinzia Franchin, Giorgio Arrigoni, Danilo Licastro, Lorenzo Monasta, Giuseppe Ricci
Uterine leiomyoma is the most common female reproductive tract benign tumor. Little is known about protein composition and changes in the leiomyoma interstitial fluid (IF). The present study focused on changes in protein abundance in the IF of leiomyoma. Leiomyoma IFs and adjacent myometrial IFs were obtained and analyzed by two-dimensional electrophoresis (2-DE) coupled with mass spectrometry and western blotting for 2-DE data validation. A total of 25 unique proteins were observed to change significantly (P<0...
May 2017: Oncology Letters
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