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https://www.readbyqxmd.com/read/29352733/localization-of-palmitoylated-and-activated-g-protein-%C3%AE-subunit-in-dictyostelium-discoideum
#1
Sarah Alamer, Yusuke Kageyama, Robert E Gundersen
Guanine nucleotide-binding proteins (G proteins) act as molecular switches to regulate many fundamental cellular processes. The lipid modification, palmitoylation, can be considered as a key factor for proper G protein function and plasma membrane localization. In Dictyostelium discoidum, Gα2 is essential for the chemotactic response to cAMP in their developmental life cycle. However, the regulation of Gα2 with respect to palmitoylation, activation and Gβγ association is less clear. In this study, Gα2 is shown to be palmitoylated on Cys-4 by [3 H]palmitate labeling...
January 20, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29352510/identification-of-a-novel-hla-c-12-allele-hla-c-12-221
#2
M-R Huo, Y Yu, B Xi, D Li
HLA-C*12:221 differs from C*12:02:03 by a single nucleotide substitution at position 367 of exon 3.
January 20, 2018: HLA
https://www.readbyqxmd.com/read/29352482/influence-of-pharmacogenetic-polymorphisms-and-demographic-variables-on-metformin-pharmacokinetics-in-an-admixed-brazilian-cohort
#3
Ana Beatriz Santoro, Mariana Rodrigues Botton, Claudio José Struchiner, Guilherme Suarez-Kurtz
AIM: To identify pharmacogenetic and demographic variables that influence the systemic exposure to metformin in an admixed Brazilian cohort. METHODS: The extreme discordant phenotype was used to select 106 data sets from nine metformin bioequivalence trials, comprising 256 healthy adults. Eleven single-nucleotide polymorphisms in SLC22A1, SLC22A2, SLC47A1 SLC47A2 and in transcription factor SP1 were genotyped and a validated panel of ancestry informative markers was used to estimate the individual proportions of biogeographical ancestry...
January 20, 2018: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29352395/association-between-crp-genetic-diversity-and-bipolar-disorder-comorbid-complications
#4
Wahid Boukouaci, José Oliveira, Bruno Etain, Meriem Bennabi, Christina Mariaselvam, Nora Hamdani, Céline Manier, Djaouida Bengoufa, Frank Bellivier, Chantal Henry, Jean-Pierre Kahn, Dominique Charron, Rajagopal Krishnamoorthy, Marion Leboyer, Ryad Tamouza
BACKGROUND: Chronic low-grade inflammation is believed to contribute, at least in a subset of patients, to the development of bipolar disorder (BD). In this context, the most investigated biological marker is the acute phase response molecule, C-reactive protein (CRP). While the genetic diversity of CRP was amply studied in various pathological settings, little is known in BD. METHODS: 568 BD patients along with 163 healthy controls (HC) were genotyped for the following single-nucleotide polymorphisms (SNPs) on the CRP gene: intron rs1417938 (+ 29) T/A, 3'-UTR rs1130864 (+ 1444) G/A, and downstream rs1205 (+ 1846) (C/T)...
January 20, 2018: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/29352323/identification-of-a-molecular-marker-tightly-linked-to-bacterial-wilt-resistance-in-tomato-by-genome-wide-snp-analysis
#5
Boyoung Kim, In Sun Hwang, Hyung Jin Lee, Je Min Lee, Eunyoung Seo, Doil Choi, Chang-Sik Oh
Genotyping of disease resistance to bacterial wilt in tomato by a genome-wide SNP analysis Bacterial wilt caused by Ralstonia pseudosolanacearum is one of the destructive diseases in tomato. The previous studies have identified Bwr-6 (chromosome 6) and Bwr-12 (chromosome 12) loci as the major quantitative trait loci (QTLs) contributing to resistance against bacterial wilt in tomato cultivar 'Hawaii7996'. However, the genetic identities of two QTLs have not been uncovered yet. In this study, using whole-genome resequencing, we analyzed genome-wide single-nucleotide polymorphisms (SNPs) that can distinguish a resistant group, including seven tomato varieties resistant to bacterial wilt, from a susceptible group, including two susceptible to the same disease...
January 19, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29352316/kansl1-variation-is-not-a-major-contributing-factor-in-self-limited-focal-epilepsy-syndromes-of-childhood
#6
Kenneth A Myers, Amelia McGlade, Bernd A Neubauer, Dennis Lal, Samuel F Berkovic, Ingrid E Scheffer, Michael S Hildebrand
BACKGROUND: KANSL1 haploinsufficiency causes Koolen-de Vries syndrome (KdVS), characterized by dysmorphic features and intellectual disability; amiable personality, congenital malformations and seizures also commonly occur. The epilepsy phenotypic spectrum in KdVS is broad, but most individuals have focal seizures with some having a phenotype resembling the self-limited focal epilepsies of childhood (SFEC). We hypothesized that variants in KANSL1 contribute to pathogenesis of SFEC. MATERIALS AND METHODS: We screened KANSL1 for single nucleotide variants in 90 patients with SFEC...
2018: PloS One
https://www.readbyqxmd.com/read/29352151/effects-of-genetic-variants-on-platelet-reactivity-and-one-year-clinical-outcomes-after-percutaneous-coronary-intervention-a-prospective-multicentre-registry-study
#7
Hyung Joon Joo, Sung Gyun Ahn, Jae Hyoung Park, Ji Young Park, Soon Jun Hong, Seok-Yeon Kim, WoongGil Choi, HyeonCheol Gwon, Young-Hyo Lim, Weon Kim, Woong Chol Kang, Yun-Hyeong Cho, Yong Hoon Kim, JungHan Yoon, WonYong Shin, Myeong-Ki Hong, Scot Garg, Yangsoo Jang, Do-Sun Lim
Clopidogrel is the mainstay for antiplatelet treatment after percutaneous coronary intervention (PCI). The relationship of platelet reactivity and genetic polymorphism with clinical outcomes with newer-generation drug-eluting stents is unclear. We analysed 4,587 patients for the most powerful single-nucleotide polymorphisms (CYP2C19, CYP2C9, ABCB1, PON1, and P2Y12) related to on-treatment platelet reactivity (OPR). The optimal cut-off value of high OPR for major adverse thrombotic events was 266. CYP2C19 was significantly associated with high OPR and the number of CYP2C19*R (*2 or *3) alleles was proportional to the increased risk of high OPR...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352135/blocking-zika-virus-vertical-transmission
#8
Pinar Mesci, Angela Macia, Spencer M Moore, Sergey A Shiryaev, Antonella Pinto, Chun-Teng Huang, Leon Tejwani, Isabella R Fernandes, Nicole A Suarez, Matthew J Kolar, Sandro Montefusco, Scott C Rosenberg, Roberto H Herai, Fernanda R Cugola, Fabiele B Russo, Nicholas Sheets, Alan Saghatelian, Sujan Shresta, Jeremiah D Momper, Jair L Siqueira-Neto, Kevin D Corbett, Patricia C B Beltrão-Braga, Alexey V Terskikh, Alysson R Muotri
The outbreak of the Zika virus (ZIKV) has been associated with increased incidence of congenital malformations. Although recent efforts have focused on vaccine development, treatments for infected individuals are needed urgently. Sofosbuvir (SOF), an FDA-approved nucleotide analog inhibitor of the Hepatitis C (HCV) RNA-dependent RNA polymerase (RdRp) was recently shown to be protective against ZIKV both in vitro and in vivo. Here, we show that SOF protected human neural progenitor cells (NPC) and 3D neurospheres from ZIKV infection-mediated cell death and importantly restored the antiviral immune response in NPCs...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352104/a-ph-like-domain-of-the-rab12-guanine-nucleotide-exchange-factor-dennd3-binds-actin-and-is-required-for-autophagy
#9
Jie Xu, Guennadi Kozlov, Peter S McPherson, Kalle Gehring
Rab GTPases are key regulators of membrane trafficking and many are activated by guanine nucleotide exchange factors bearing a <span style="text-decoration: underline;">d</span>ifferentially <span style="text-decoration: underline;">e</span>xpressed in <span style="text-decoration: underline;">n</span>ormal and <span style="text-decoration: underline;">n</span>eoplastic cells (DENN) domain. By activating the small GTPase Rab12, DENN domain-containing protein 3 (DENND3) functions in autophagy...
January 19, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29352099/smoking-and-parkinson-disease-evidence-for-gene-by-smoking-interactions
#10
Pei-Chen Lee, Ismaïl Ahmed, Marie-Anne Loriot, Claire Mulot, Kimberly C Paul, Jeff M Bronstein, Beate Ritz, Alexis Elbaz
OBJECTIVE: To investigate whether cigarette smoking interacts with genes involved in individual susceptibility to xenobiotics for the risk of Parkinson disease (PD). METHODS: Two French population-based case-control studies (513 patients, 1,147 controls) were included as a discovery sample to examine gene-smoking interactions based on 3,179 single nucleotide polymorphisms (SNPs) in 289 genes involved in individual susceptibility to xenobiotics. SNP-by-cigarette smoking interactions were tested in the discovery sample through an empirical Bayes (EB) approach...
January 19, 2018: Neurology
https://www.readbyqxmd.com/read/29352079/identification-and-validation-of-a-new-source-of-low-grain-cadmium-accumulation-in-durum-wheat
#11
Atena Oladzad Abbasabadi, Ajay Kumar, Seyed Pirseyedi, Evan Salsman, Marina Dobrydina, Roshan Sharma Poudel, Wesam A AbuHammad, Shiaoman Chao, Justin D Faris, Elias M Elias
Cadmium (Cd) is a heavy metal that has no known biological function and is toxic for many living organisms. The maximum level of Cd concentration allowed in the international market for wheat grain is 0.2 mg kg-1. Because phenotyping for Cd uptake is expensive and time consuming, molecular markers associated with genes conferring low Cd uptake would expedite selection and lead to the development of durum cultivars with reduced Cd concentrations. Here, we identified single nucleotide polymorphisms (SNPs) associated with a novel low Cd uptake locus in the durum experimental line D041735, which has hexaploid common wheat in its pedigree...
January 19, 2018: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29351800/drug-resistance-genes-pvcrt-o-and-pvmdr-1-polymorphism-in-patients-from-malaria-endemic-south-western-coastal-region-of-india
#12
Shiny Joy, Benudhar Mukhi, Susanta K Ghosh, Rajeshwara N Achur, D Channe Gowda, Namita Surolia
BACKGROUND: Malaria is highly prevalent in many parts of India and is mostly caused by the parasite species Plasmodium vivax followed by Plasmodium falciparum. Chloroquine (CQ) is the first-line treatment for blood stage P. vivax parasites, but cases of drug resistance to CQ have been reported from India. One of the surveillance strategies which is used to monitor CQ drug resistance, is the analysis of single nucleotide polymorphisms (SNPs) of the associated gene markers. Susceptibility to CQ can also be determined by copy number assessment of multidrug resistant gene (mdr-1)...
January 19, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29351739/a-study-of-the-association-of-rs12040273-with-susceptibility-and-severity-of-coronary-artery-disease-in-a-chinese-han-population
#13
Bo Yang, Shan Yan, Jianjun Yan, Yafei Li, Mohammad Reeaze Khurwolah, Liansheng Wang, Zhong Chen
BACKGROUND: The single nucleotide polymorphism (SNP) rs12040273, a variant of UDP-N-acetylgalactosamine, polypeptide GalNAc-transferase 2, has recently been reported to be significantly associated with development of carotid artery intima-media thickness (IMT) in a Chinese population based on a genome-wide association study. Because IMT is a potent marker of coronary artery disease (CAD), the aim of this study was to evaluate the relation of rs12040273 to susceptibility and severity of CAD in a Chinese Han population...
January 19, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29351723/mitochondrial-uncoupling-proteins-subtle-regulators-of-cellular-redox-signaling
#14
Petr Jezek, Blanka Holendová, Keith D Garlid, Martin Jaburek
SIGNIFICANCE: Mitochondria are the energetic, metabolic, redox and information signaling centers of the cell. Substrate pressure, mitochondrial network dynamics and cristae morphology state are integrated by the protonmotive force Δp or its potential component, ΔΨ, which are attenuated by proton backflux into the matrix, termed uncoupling. The mitochondrial uncoupling proteins (UCP1-5) play an eminent role in the regulation of each of the above aspects, being involved in numerous physiological events including redox signaling...
January 19, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29351603/the-unexpected-function-of-a-flavin-dependent-oxidoreductase-fox-from-variovorax-paradoxus-tbea6
#15
Christina Meinert, Marc Schürmann, Jan-Eike Domeyer, Anja Poehlein, Rolf Daniel, Alexander Steinbüchel
3,3'-Thiodipropionic acid (TDP) is used as an additive in food and cosmetic industry and as precursor substrate for biotechnical polythioester production. Its catabolism was investigated in Variovorax paradoxus TBEA6 previous to this study. It was reported that the insertion of the transposon Tn5::mob into a gene showing high homology to flavin-dependent oxidoreductases (fox) resulted in impaired growth with TDP. Therefore, it was assumed that the initial cleavage of TDP is catalyzed by an FAD-dependent oxidoreductase (Fox, VPARA_05580)...
January 17, 2018: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29351588/sorghum-root-system-classification-in-contrasting-p-environments-reveals-three-main-rooting-types-and-root-architecture-related-marker-trait-associations
#16
Sebastian Parra-Londono, Mareike Kavka, Birgit Samans, Rod Snowdon, Silke Wieckhorst, Ralf Uptmoor
Background and Aims: Roots facilitate acquisition of macro- and micronutrients, which are crucial for plant productivity and anchorage in the soil. Phosphorus (P) is rapidly immobilized in the soil and hardly available for plants. Adaptation to P scarcity relies on changes in root morphology towards rooting systems well suited for topsoil foraging. Root-system architecture (RSA) defines the spatial organization of the network comprising primary, lateral and stem-derived roots and is important for adaptation to stress conditions...
January 17, 2018: Annals of Botany
https://www.readbyqxmd.com/read/29351437/metabolic-reprogramming-in-the-pathogenesis-of-chronic-lung-diseases-including-bpd-copd-and-pulmonary-fibrosis
#17
Haifeng Zhao, Phyllis A Dennery, Hongwei Yao
The metabolism of nutrient substrates including glucose, glutamine and fatty acids provides acetyl-CoA for the tricarboxylic acid cycle to generate energy, and metabolites for the biosynthesis of biomolecules including nucleotides, proteins, and lipids. It has been shown that metabolism of glucose, fatty acid, and glutamine plays important roles in modulating cellular proliferation, differentiation, apoptosis, autophagy, senescence, and inflammatory responses. All these cellular processes contribute to the pathogenesis of chronic lung diseases, including bronchopulmonary dysplasia, chronic obstructive pulmonary disease, and pulmonary fibrosis...
January 4, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29351348/interactions-of-2-o-methyl-oligoribonucleotides-with-the-rna-models-of-the-30s-subunit-a-site
#18
Maciej Jasiński, Marta Kulik, Monika Wojciechowska, Ryszard Stolarski, Joanna Trylska
Synthetic oligonucleotides targeting functional regions of the prokaryotic rRNA could be promising antimicrobial agents. Indeed, such oligonucleotides were proven to inhibit bacterial growth. 2'-O-methylated (2'-O-Me) oligoribonucleotides with a sequence complementary to the decoding site in 16S rRNA were reported as inhibitors of bacterial translation. However, the binding mode and structures of the formed complexes, as well as the level of selectivity of the oligonucleotides between the prokaryotic and eukaryotic target, were not determined...
2018: PloS One
https://www.readbyqxmd.com/read/29351302/extension-of-the-viral-ecology-in-humans-using-viral-profile-hidden-markov-models
#19
Zurab Bzhalava, Emilie Hultin, Joakim Dillner
When human samples are sequenced, many assembled contigs are "unknown", as conventional alignments find no similarity to known sequences. Hidden Markov models (HMM) exploit the positions of specific nucleotides in protein-encoding codons in various microbes. The algorithm HMMER3 implements HMM using a reference set of sequences encoding viral proteins, "vFam". We used HMMER3 analysis of "unknown" human sample-derived sequences and identified 510 contigs distantly related to viruses (Anelloviridae (n = 1), Baculoviridae (n = 34), Circoviridae (n = 35), Caulimoviridae (n = 3), Closteroviridae (n = 5), Geminiviridae (n = 21), Herpesviridae (n = 10), Iridoviridae (n = 12), Marseillevirus (n = 26), Mimiviridae (n = 80), Phycodnaviridae (n = 165), Poxviridae (n = 23), Retroviridae (n = 6) and 89 contigs related to described viruses not yet assigned to any taxonomic family)...
2018: PloS One
https://www.readbyqxmd.com/read/29351075/pathological-and-molecular-studies-of-the-renal-trematode-paratanaisia-bragai-in-indian-peafowls-pavo-cristatus
#20
M Asok Kumar, Deepak Kumar, Munuswamy Palanivelu, Latchumikanthan Annamalai, Karikalan Mathesh, Rajendra Singh, Anil Kumar Sharma, Kuldeep Dhama
Endoparasitic diseases are commonly encountered in free-ranging birds. Although not all endoparasites cause disease, persistent infection with large numbers of parasites almost always affects normal physiological functions, leading to deleterious effects on the host. This paper describes the anatomopathological alterations caused by the renal trematode Paratanaisia bragai in Indian peafowl (n = 3) and examines the phylogeny of these and related parasites. Peafowl from forests in and around the Bareilly region, Uttar Pradesh, India, were necropsied, and microscopic and molecular investigations were performed...
March 26, 2018: Acta Parasitologica
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