keyword
MENU ▼
Read by QxMD icon Read
search

Arginine

keyword
https://www.readbyqxmd.com/read/28329249/acetylation-regulates-protein-stability-and-dna-binding-ability-of-hild-to-modulate-salmonella-typhimurium-virulence
#1
Yu Sang, Jie Ren, Ran Qin, Shuting Liu, Zhongli Cui, Sen Cheng, Xiaoyun Liu, Jie Lu, Jing Tao, Yu-Feng Yao
HilD, a dominant regulator of Salmonella pathogenicity island 1 (SPI-1), can be acetylated by acetyltransferase Pat in Salmonella Typhimurium, and the acetylation is beneficial to its stability. However, the underlying mechanism of HilD stability regulated by acetylation is not clear. We show here that lysine 297 (K297) located in the helix-turn-helix motif, can be acetylated by Pat. Acetylation of K297 increases HilD stability, but reduces its DNA-binding affinity. In turn, the deacetylated K297 enhances the DNA-binding ability, but decreases HilD stability...
February 24, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28328217/development-of-a-selective-inhibitor-of-protein-arginine-deiminase-2
#2
Aaron Muth, Venkataraman Subramanian, Edward Beaumont, Mitesh Nagar, Philip Kerry, Paul McEwan, Hema Srinath, Kathleen Wanda Clancy, Sangram S Parelkar, Paul R Thompson
Protein arginine deiminase 2 (PAD2) plays a key role in the onset and progression of multiple sclerosis, rheumatoid arthritis and breast cancer. To date, no PAD2-selective inhibitor has been developed. Such a compound will be critical for elucidating the biological roles of this isozyme and may ultimately be useful for treating specific diseases in which PAD2 activity is dysregulated. To achieve this goal, we synthesized a series of benzimidazole-based derivatives of Cl-amidine, hypothesizing that this scaffold would allow access to a series of PAD2-selective inhibitors with enhanced cellular efficacy...
March 22, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28327673/corrigendum-universal-stress-protein-rv2624c-alters-abundance-of-arginine-and-enhances-intracellular-survival-by-atp-binding-in-mycobacteria
#3
Qiong Jia, Xinling Hu, Dawei Shi, Yan Zhang, Meihao Sun, Jianwei Wang, Kaixia Mi, Guofeng Zhu
No abstract text is available yet for this article.
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28327128/the-investigation-of-helicobacter-pylori-in-the-dental-biofilm-and-saliva-samples-of-children-with-dyspeptic-complaints
#4
Damla Aksit Bıcak, Serap Akyuz, Binnur Kıratlı, Merve Usta, Nafiye Urganci, Burcin Alev, Aysen Yarat, Fikrettin Sahin
BACKGROUND: The oral cavity can be an extra-gastric reservoir for Helicobacter pylori (H.pylori). This can play a role in the pathogenesis of halitosis, glossitis, recurrent aphthous stomatitis, and dental caries. The present study was conducted to detect the presence of H.pylori within the dental biofilm and in saliva samples collected from children suffering from dyspepsia and children without any gastrointestinal complaints. Associations with gastric infection, halitosis, and some oral parameters were also evaluated...
March 21, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28326928/cxcr4-signaling-in-macrophages-contributes-to-periodontal-mechanical-hypersensitivity-in-porphyromonas-gingivalis-induced-periodontitis-in-mice
#5
Hidekazu Nagashima, Masamichi Shinoda, Kuniya Honda, Noriaki Kamio, Masahiro Watanabe, Tatsuro Suzuki, Naoyuki Sugano, Shuichi Sato, Koichi Iwata
Background Periodontitis is an inflammatory disease accompanied by alveolar bone loss and progressive inflammation without pain. However, the potential contributors eliminating pain associated with gingival inflammation are unknown. Results we examined the involvement of CXC chemokine receptor type 4 (CXCR4) on the mechanical sensitivity of inflamed periodontal tissue, using a mouse model of periodontitis established by the ligation of the tooth cervix of a maxillary second molar and inoculation with Porphyromonas gingivalis (P...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28326449/functional-analysis-of-the-minimal-twin-arginine-translocation-system-components-from-streptococcus-thermophilus-cgmcc-7-179-in-escherichia-coli-de3
#6
Chenchen Zhang, Tingting Guo, Yongping Xin, Susu Zhang, Xudong Ouyang, Ruixia Gu, Jian Kong
The twin-arginine translocation (Tat) system, which is used for folded protein secretion, is rare in lactic acid bacteria (LAB). Previously, a Tat system composed of TatAS and TatCS subunits (the subscript S denotes a Streptococcus thermophilus origin) was identified in S. thermophilus CGMCC 7.179. In the present study, the tatA S and tatC S genes were cloned and functionally analyzed in Escherichia coli DE3 tat-deficient mutants. The E. coli tatABCDE-deficient mutant complemented with tatC S A S exhibited shortened cellular chains, but its ability to grow in the presence of sodium dodecyl sulfate (SDS) was not restored, suggesting that the S...
March 22, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28325923/clinical-features-and-viral-quasispecies-characteristics-associated-with-infection-by-the-hepatitis-b-virus-g145r-immune-escape-mutant
#7
Yuan Xue, Ming-Jie Wang, Zhi-Tao Yang, De-Min Yu, Yue Han, Dao Huang, Dong-Hua Zhang, Xin-Xin Zhang
Coexistence of the hepatitis B surface antigen (HBsAg) and hepatitis B surface antibody (anti-HBs) is an uncommon phenomenon, and the underlying mechanisms remain largely unknown. Amino-acid (aa) substitution from glycine to arginine at aa 145 (G145R), in the major hydrophilic region, has been reported in patients with HBsAg and anti-HBs coexistence. However, there is limited knowledge about the clinical features and viral quasispecies characteristics associated with G145R mutant hepatitis B virus (HBV) infection...
March 22, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28325880/balancing-selection-maintains-polymorphisms-at-neurogenetic-loci-in-field-experiments
#8
Eija Lonn, Esa Koskela, Tapio Mappes, Mikael Mokkonen, Angela M Sims, Phillip C Watts
Most variation in behavior has a genetic basis, but the processes determining the level of diversity at behavioral loci are largely unknown for natural populations. Expression of arginine vasopressin receptor 1a (Avpr1a) and oxytocin receptor (Oxtr) in specific regions of the brain regulates diverse social and reproductive behaviors in mammals, including humans. That these genes have important fitness consequences and that natural populations contain extensive diversity at these loci implies the action of balancing selection...
March 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28325852/extended-multiplexing-of-tmt-labeling-reveals-age-and-high-fat-diet-specific-proteome-changes-in-mouse-epididymal-adipose-tissue
#9
Deanna L Plubell, Phillip A Wilmarth, Yuqi Zhao, Alexandra M Fenton, Jessica Minnier, Ashok P Reddy, John Klimek, Xia Yang, Larry L David, Nathalie Pamir
The lack of high-throughput methods to analyze the adipose tissue protein composition limits our understanding of the protein networks responsible for age and diet related metabolic response. We have developed an approach using multiple-dimension liquid chromatography tandem mass spectrometry and extended multiplexing (24 biological samples) with TMT labeling to analyze proteomes of epididymal adipose tissues isolated from mice fed either low or high fat diet for a short or a long-term, and from mice that aged on low vs...
March 21, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28325791/individual-variations-in-nitric-oxide-synthase-dependent-sweating-in-young-and-older-males-during-exercise-in-the-heat-role-of-aerobic-power
#10
Tatsuro Amano, Naoto Fujii, Jeffrey C Louie, Robert D Meade, Glen P Kenny
We evaluated the association between aerobic power (defined by peak oxygen consumption; VO2peak) and the contribution of nitric oxide synthase (NOS) to the sweating response in young and older individuals during exercise in the heat. Data from 44 young (24 ± 1 years) and 48 older (61 ± 2 years) males with mean VO2peak of 47.8 ± 2.4 (range, 28.0-62.3) and 39.1 ± 2.3 (range, 26.4-55.7) mLO2 kg(-1) min(-1), respectively, were compiled from our prior studies. Participants performed two 15- to 30-min bouts of exercise at a fixed rate of metabolic heat production of 400 or 500 W, each separated by 15-20 min recovery in the heat (35°C, relative humidity of 20%)...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28325753/mouse-model-for-inherited-renal-fibrosis-associated-with-endoplasmic-reticulum-stress
#11
Sian E Piret, Eric Olinger, Anita A C Reed, M Andrew Nesbit, Tertius A Hough, Liz Bentley, Olivier Devuyst, Roger Cox, Rajesh V Thakker
Renal fibrosis is a common feature of renal failure resulting from multiple aetiologies, including diabetic nephropathy, hypertension and inherited renal disorders. However, the mechanisms of renal fibrosis are incompletely understood and we therefore explored these by establishing a mouse model for a renal tubular disorder, referred to as autosomal dominant tubulointerstitial kidney disease (ADTKD) due to missense uromodulin (UMOD) mutations (ADTKD-UMOD). ADTKD-UMOD, which is associated with retention of mutant uromodulin in the endoplasmic reticulum (ER) of renal thick ascending limb cells, is characterized by hyperuricemia, interstitial fibrosis, inflammation, and renal failure, and we used targeted homologous recombination to generate a knock-in mouse model with an ADTKD-causing missense cysteine to arginine uromodulin mutation (C125R)...
March 21, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28325734/does-maternal-fetal-transfer-of-creatine-occur-in-pregnant-sheep
#12
Syed Baharom, Robert De Matteo, Stacey Ellery, Paul Della Gatta, Clinton R Bruce, Greg M Kowalski, Nadia Hale, Hayley Dickinson, Richard Harding, David Walker, Rodney J Snow
Our aim was to determine the disposition of creatine in ovine pregnancy, and whether creatine is transferred across the placenta from mother to fetus. Pregnant ewes received either: (i) a continuous intravenous infusion of creatine monohydrate or saline from 122 to 131 days gestation, with maternal and fetal arterial blood and amniotic fluid samples collected daily for creatine analysis and fetal tissues collected at necropsy at 133 days for analysis of creatine content, or; (ii) a single systemic bolus injection of (13)C labelled creatine monohydrate at 130 days of gestation, with maternal and fetal arterial blood, uterine vein blood and amniotic fluid samples collected prior to, and for 4 hours post injection and analysed for creatine, creatine isotopic enrichment, and guanidinoacetic acid (GAA, precursor of creatine) concentrations...
March 21, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28325558/l-citrulline-ameliorates-cerebral-blood-flow-during-cortical-spreading-depression-in-rats-involvement-of-nitric-oxide-and-prostanoids-mediated-pathway
#13
Yuki Kurauchi, Koichi Mokudai, Asami Mori, Kenji Sakamoto, Tsutomu Nakahara, Masahiko Morita, Ayako Kamimura, Kunio Ishii
l-Citrulline is a potent precursor of l-arginine, and exerts beneficial effect on cardiovascular system via nitric oxide (NO) production. Migraine is one of the most popular neurovascular disorder, and imbalance of cerebral blood flow (CBF) observed in cortical spreading depression (CSD) contributes to the mechanism of migraine aura. Here, we investigated the effect of l-citrulline on cardiovascular changes to KCl-induced CSD. in rats. Intravenous injection of l-citrulline prevented the decrease in CBF, monitored by laser Doppler flowmetry, without affecting mean arterial pressure and heart rate during CSD...
February 17, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28322945/bifunctional-role-of-leucine-300-of-firefly-luciferase-in-structural-rigidity
#14
Farzad Yousefi, Farangis Ataei, Mojtaba Mortazavi, Saman Hosseinkhani
Firefly luciferase is susceptible to thermal inactivation, thereby its intracellular half-life decreased. Previous reports indicated that L(300)R mutation (LRR mutant) in E(354)R/Arg(356) double mutant (ERR mutant) from Lampyris turkestanicus luciferase has increased its thermal stability and rigidity through induction of some ionic bonds with Asp 270 and 271. Disruption of the deduced ionic bonds in an ultra-rigid mutant of firefly luciferase did not reverse the flexibility of the protein. In this study, we investigated the effects of this residue to find the truth behind extraordinary increase in thermal stability and rigidity of luciferase after replacement of leucine 300 by arginine based on previous reports...
March 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28322944/new-insights-into-non-enzymatic-glycation-of-human-serum-albumin-biopolymer-a-study-to-unveil-its-impaired-structure-and-function
#15
Alok Raghav, Jamal Ahmad, Khursheed Alam, Asad U Khan
Albumin glycation and subsequent formation of advanced glycation end products (AGEs) correlate with diabetes and associated complications. Human Serum Albumin (HSA) was modified with D-glucose for a 40day period under sterile conditions at 37°C. Modified samples along with native HSA (unmodified) were analyzed for impairment in biochemical characteristics (fructosamine, carbonyl, thiol, lysine, arginine, hydroxymethyl furfural [HMF] content, electrochemical (electrical conductance), simulated gastric fluid assay, simulated intestinal fluid assay, spectroscopic properties (UV, fluorescence), optical (surface contact angle) and fluid dynamics (viscosity and Stokes radius)...
March 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28322753/myeloperoxidase-asymmetric-dimethyl-arginine-and-the-renin-angiotensin-aldosterone-system-in-cardiovascular-risk-patients-cross-sectional-findings-from-the-ludwigshafen-risk-and-cardiovascular-health-luric-study
#16
Sieglinde Zelzer, Dietmar Enko, Stefan Pilz, Andreas Tomaschitz, Winfried März, Andreas Meinitzer
OBJECTIVES: The leukocyte-derived myeloperoxidase (MPO), the nitric oxidase synthase (NOS) inhibitor asymmetrical dimethyl-arginine (ADMA) and the renin-angiotensin-aldosterone-system (RAAS) are associated with cardiovascular diseases (CVD). This study aimed to investigate potential interactions between the RAAS, ADMA and MPO in cardiovascular risk patients. DESIGN AND METHODS: All in all, 1446 patients, who were referred to coronary angiography, were included in this prospective study...
March 18, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28322162/arginine-complexes-with-simvastatin-apparent-solubility-in-vitro-dissolution-and-solid-state-characterization
#17
Mmr Meor Mohd Affandi, Minaketan Tripathy, Aba Majeed
Categorized as a Biopharmaceutics Classification System (BCS) Class II drugs, statin exhibit low aqueous solubility and bioavailability thus presenting an obstacle and great challenge to formulation researchers. This paper describes a de novo approach to enhance the aqueous solubility of one of the most commonly prescribed statins i.e. simvastatin (SMV) by forming a complex (SMV-ARG) with cosolute arginine (ARG). The complex has been characterized for its apparent solubility and in vitro dissolution. The solid state characterization has been carried out using Fourier Transform Infra-Red (FTIR) Spectroscopy, Elemental Analysis, X-Ray Powder Diffraction (XRD), Differential Scanning Calorimetry (DSC) analysis, Thermal Gravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM)...
March 20, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28321214/exogenous-l-valine-promotes-phagocytosis-to-kill-multidrug-resistant-bacterial-pathogens
#18
Xin-Hai Chen, Shi-Rao Liu, Bo Peng, Dan Li, Zhi-Xue Cheng, Jia-Xin Zhu, Song Zhang, Yu-Ming Peng, Hui Li, Tian-Tuo Zhang, Xuan-Xian Peng
The emergence of multidrug-resistant bacteria presents a severe threat to public health and causes extensive losses in livestock husbandry and aquaculture. Effective strategies to control such infections are in high demand. Enhancing host immunity is an ideal strategy with fewer side effects than antibiotics. To explore metabolite candidates, we applied a metabolomics approach to investigate the metabolic profiles of mice after Klebsiella pneumoniae infection. Compared with the mice that died from K. pneumoniae infection, mice that survived the infection displayed elevated levels of l-valine...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28320614/synthesis-of-a-glcnacylated-arginine-building-block-for-the-solid-phase-synthesis-of-death-domain-glycopeptide-fragments
#19
Siyao Wang, Leo Corcilius, Phillip P Sharp, Richard J Payne
Herein we describe the synthesis of glycopeptide fragments from the death domains of TRADD and FADD bearing the recently discovered Nω-GlcNAc-β-arginine post-translational modification. TRADD and FADD glycopeptides were accessed through the use of a suitably protected synthetic glycosylamino acid 'cassette' that could be directly incorporated into conventional solid phase peptide synthesis (SPPS) protocols.
March 7, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28320286/functioning-of-yeast-pma1-h-atpase-under-changing-charge-role-of-asp739-and-arg811-residues
#20
V V Petrov
The plasma membrane Pma1 H+-ATPase of the yeast Saccharomyces cerevisiae contains conserved residue Asp739 located at the interface of transmembrane segment M6 and the cytosol. Its replacement by Asn or Val (Petrov et al. (2000) J. Biol. Chem., 275, 15709-15716) or by Ala (Miranda et al. (2011) Biochim. Biophys. Acta, 1808, 1781-1789) caused complete blockage of biogenesis of the enzyme, which did not reach secretory vesicles. It was proposed that a strong ionic bond (salt bridge) could be formed between this residue and positively charged residue(s) in close proximity, and the replacement D739A disrupted this bond...
January 2017: Biochemistry. Biokhimii︠a︡
keyword
keyword
14512
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"