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Reprogramming of Trna Modifications Controls the Oxidative Stress Response by Codon-Biased Translation of Proteins
Reprogramming of tRNA modifications controls the oxidative stress response by codon-biased translation of proteins The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Chan, Clement T.Y. et al. “Reprogramming of tRNA Modifications Controls the Oxidative Stress Response by Codon-biased Translation of Proteins.” Nature Communications 3 (2012): 937. As Published http://dx.doi.org/10.1038/ncomms1938 Publisher Nature Publishing Group Version Author's final manuscript Citable link http://hdl.handle.net/1721.1/76775 Terms of Use Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. Reprogramming of tRNA modifications controls the oxidative stress response by codon-biased translation of proteins Clement T.Y. Chan,1,2 Yan Ling Joy Pang,1 Wenjun Deng,1 I. Ramesh Babu,1 Madhu Dyavaiah,3 Thomas J. Begley3 and Peter C. Dedon1,4* 1Department of Biological Engineering, 2Department of Chemistry and 4Center for Environmental Health Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139; 3College of Nanoscale Science and Engineering, University at Albany, SUNY, Albany, NY 12203 * Corresponding author: PCD, Department of Biological Engineering, NE47-277, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139; tel 617-253-8017; fax 617-324-7554; email [email protected] 2 ABSTRACT Selective translation of survival proteins is an important facet of cellular stress response. We recently demonstrated that this translational control involves a stress-specific reprogramming of modified ribonucleosides in tRNA. -
Allele-Specific Expression of Ribosomal Protein Genes in Interspecific Hybrid Catfish
Allele-specific Expression of Ribosomal Protein Genes in Interspecific Hybrid Catfish by Ailu Chen A dissertation submitted to the Graduate Faculty of Auburn University in partial fulfillment of the requirements for the Degree of Doctor of Philosophy Auburn, Alabama August 1, 2015 Keywords: catfish, interspecific hybrids, allele-specific expression, ribosomal protein Copyright 2015 by Ailu Chen Approved by Zhanjiang Liu, Chair, Professor, School of Fisheries, Aquaculture and Aquatic Sciences Nannan Liu, Professor, Entomology and Plant Pathology Eric Peatman, Associate Professor, School of Fisheries, Aquaculture and Aquatic Sciences Aaron M. Rashotte, Associate Professor, Biological Sciences Abstract Interspecific hybridization results in a vast reservoir of allelic variations, which may potentially contribute to phenotypical enhancement in the hybrids. Whether the allelic variations are related to the downstream phenotypic differences of interspecific hybrid is still an open question. The recently developed genome-wide allele-specific approaches that harness high- throughput sequencing technology allow direct quantification of allelic variations and gene expression patterns. In this work, I investigated allele-specific expression (ASE) pattern using RNA-Seq datasets generated from interspecific catfish hybrids. The objective of the study is to determine the ASE genes and pathways in which they are involved. Specifically, my study investigated ASE-SNPs, ASE-genes, parent-of-origins of ASE allele and how ASE would possibly contribute to heterosis. My data showed that ASE was operating in the interspecific catfish system. Of the 66,251 and 177,841 SNPs identified from the datasets of the liver and gill, 5,420 (8.2%) and 13,390 (7.5%) SNPs were identified as significant ASE-SNPs, respectively. -
Sulfite Dehydrogenases in Organotrophic Bacteria : Enzymes
Sulfite dehydrogenases in organotrophic bacteria: enzymes, genes and regulation. Dissertation zur Erlangung des akademischen Grades des Doktors der Naturwissenschaften (Dr. rer. nat.) an der Universität Konstanz Fachbereich Biologie vorgelegt von Sabine Lehmann Tag der mündlichen Prüfung: 10. April 2013 1. Referent: Prof. Dr. Bernhard Schink 2. Referent: Prof. Dr. Andrew W. B. Johnston So eine Arbeit wird eigentlich nie fertig, man muss sie für fertig erklären, wenn man nach Zeit und Umständen das möglichste getan hat. (Johann Wolfgang von Goethe, Italienische Reise, 1787) DANKSAGUNG An dieser Stelle möchte ich mich herzlich bei folgenden Personen bedanken: . Prof. Dr. Alasdair M. Cook (Universität Konstanz, Deutschland), der mir dieses Thema und seine Laboratorien zur Verfügung stellte, . Prof. Dr. Bernhard Schink (Universität Konstanz, Deutschland), für seine spontane und engagierte Übernahme der Betreuung, . Prof. Dr. Andrew W. B. Johnston (University of East Anglia, UK), für seine herzliche und bereitwillige Aufnahme in seiner Arbeitsgruppe, seiner engagierten Unter- stützung, sowie für die Übernahme des Koreferates, . Prof. Dr. Frithjof C. Küpper (University of Aberdeen, UK), für seine große Hilfsbereitschaft bei der vorliegenden Arbeit und geplanter Manuskripte, als auch für die mentale Unterstützung während der letzten Jahre! Desweiteren möchte ich herzlichst Dr. David Schleheck für die Übernahme des Koreferates der mündlichen Prüfung sowie Prof. Dr. Alexander Bürkle, für die Übernahme des Prüfungsvorsitzes sowie für seine vielen hilfreichen Ratschläge danken! Ein herzliches Dankeschön geht an alle beteiligten Arbeitsgruppen der Universität Konstanz, der UEA und des SAMS, ganz besonders möchte ich dabei folgenden Personen danken: . Dr. David Schleheck und Karin Denger, für die kritische Durchsicht dieser Arbeit, der durch und durch sehr engagierten Hilfsbereitschaft bei Problemen, den zahlreichen wissenschaftlichen Diskussionen und für die aufbauenden Worte, . -
Sulfur Metabolism Pathways in Sulfobacillus Acidophilus TPY, a Gram-Positive Moderate Thermoacidophile from a Hydrothermal Vent
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Frontiers - Publisher Connector ORIGINAL RESEARCH published: 18 November 2016 doi: 10.3389/fmicb.2016.01861 Sulfur Metabolism Pathways in Sulfobacillus acidophilus TPY, A Gram-Positive Moderate Thermoacidophile from a Hydrothermal Vent Wenbin Guo 1, Huijun Zhang 1, 2, Wengen Zhou 1, 2, Yuguang Wang 1, Hongbo Zhou 2 and Xinhua Chen 1, 3* 1 Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, China, 2 Department of Bioengineering, School of Minerals Processing and Bioengineering, Central South University, Changsha, China, 3 Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory forMarine Science and Technology, Qingdao, China Sulfobacillus acidophilus TPY, isolated from a hydrothermal vent in the Pacific Ocean, is a moderately thermoacidophilic Gram-positive bacterium that can oxidize ferrous iron or Edited by: sulfur compounds to obtain energy. In this study, comparative transcriptomic analyses of Jake Bailey, University of Minnesota, USA S. acidophilus TPY were performed under different redox conditions. Based on these Reviewed by: results, pathways involved in sulfur metabolism were proposed. Additional evidence M. J. L. Coolen, was obtained by analyzing mRNA abundance of selected genes involved in the sulfur Curtin University, Australia Karen Elizabeth Rossmassler, metabolism of sulfur oxygenase reductase (SOR)-overexpressed S. acidophilus TPY Colorado State University, USA recombinant under different redox conditions. Comparative transcriptomic analyses of *Correspondence: S. acidophilus TPY cultured in the presence of ferrous sulfate (FeSO4) or elemental Xinhua Chen sulfur (S0) were employed to detect differentially transcribed genes and operons involved [email protected] in sulfur metabolism. -
Elabscience.Com ® E-Mail:[email protected] Elabscience Elabscience Biotechnology Inc
Tel:240-252-7368(USA) Fax:240-252-7376(USA) www.elabscience.com ® E-mail:[email protected] Elabscience Elabscience Biotechnology Inc. RPL7 Polyclonal Antibody Catalog No. E-AB-32805 Reactivity H,M,R Storage Store at -20℃. Avoid freeze / thaw cycles. Host Rabbit Applications WB,IHC-p,ELISA Isotype IgG Note: Centrifuge before opening to ensure complete recovery of vial contents. Images Immunogen Information Immunogen Synthesized peptide derived from the C-terminal region of human Ribosomal Protein L7 Swissprot P18124 Synonyms RPL7,60S ribosomal protein L7 Western Blot analysis of 293 cells Product Information using RPL7 Polyclonal Antibody at Calculated MW 29kDa dilution of 1:2000. Observed MW 32kDa Buffer PBS with 0.02% sodium azide, 0.5% BSA and 50% glycerol, pH7.4 Purify Affinity purification Dilution WB 1:500-1:2000, IHC 1:100-1:300, ELISA 1:10000 Background Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the 60S subunit. The protein belongs to the L30P family of ribosomal proteins. It contains an N-terminal basic region-leucine zipper (BZIP)-like domain and the RNP consensus submotif RNP2. In vitro the BZIP-like domain mediates homodimerization and stable binding to DNA and RNA, with a preference for 28S rRNA and mRNA. The protein can inhibit cell- free translation of mRNAs, suggesting that it plays a regulatory role in the translation apparatus. -
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Spectrum Name of Protein Count of Peptides Ratio (POL2RA/IgG control) POLR2A_228kdBand POLR2A DNA-directed RNA polymerase II subunit RPB1 197 NOT IN CONTROL IP POLR2A_228kdBand POLR2B DNA-directed RNA polymerase II subunit RPB2 146 NOT IN CONTROL IP POLR2A_228kdBand RPAP2 Isoform 1 of RNA polymerase II-associated protein 2 24 NOT IN CONTROL IP POLR2A_228kdBand POLR2G DNA-directed RNA polymerase II subunit RPB7 23 NOT IN CONTROL IP POLR2A_228kdBand POLR2H DNA-directed RNA polymerases I, II, and III subunit RPABC3 19 NOT IN CONTROL IP POLR2A_228kdBand POLR2C DNA-directed RNA polymerase II subunit RPB3 17 NOT IN CONTROL IP POLR2A_228kdBand POLR2J RPB11a protein 7 NOT IN CONTROL IP POLR2A_228kdBand POLR2E DNA-directed RNA polymerases I, II, and III subunit RPABC1 8 NOT IN CONTROL IP POLR2A_228kdBand POLR2I DNA-directed RNA polymerase II subunit RPB9 9 NOT IN CONTROL IP POLR2A_228kdBand ALMS1 ALMS1 3 NOT IN CONTROL IP POLR2A_228kdBand POLR2D DNA-directed RNA polymerase II subunit RPB4 6 NOT IN CONTROL IP POLR2A_228kdBand GRINL1A;Gcom1 Isoform 12 of Protein GRINL1A 6 NOT IN CONTROL IP POLR2A_228kdBand RECQL5 Isoform Beta of ATP-dependent DNA helicase Q5 3 NOT IN CONTROL IP POLR2A_228kdBand POLR2L DNA-directed RNA polymerases I, II, and III subunit RPABC5 5 NOT IN CONTROL IP POLR2A_228kdBand KRT6A Keratin, type II cytoskeletal 6A 3 NOT IN CONTROL IP POLR2A_228kdBand POLR2K DNA-directed RNA polymerases I, II, and III subunit RPABC4 2 NOT IN CONTROL IP POLR2A_228kdBand RFC4 Replication factor C subunit 4 1 NOT IN CONTROL IP POLR2A_228kdBand RFC2 -
Inflammation Leads to Distinct Populations of Extracellular Vesicles from Microglia Yiyi Yang1* , Antonio Boza-Serrano1, Christopher J
Yang et al. Journal of Neuroinflammation (2018) 15:168 https://doi.org/10.1186/s12974-018-1204-7 RESEARCH Open Access Inflammation leads to distinct populations of extracellular vesicles from microglia Yiyi Yang1* , Antonio Boza-Serrano1, Christopher J. R. Dunning2, Bettina Hjelm Clausen3,4, Kate Lykke Lambertsen3,4,5 and Tomas Deierborg1* Abstract Background: Activated microglia play an essential role in inflammatory responses elicited in the central nervous system (CNS). Microglia-derived extracellular vesicles (EVs) are suggested to be involved in propagation of inflammatory signals and in the modulation of cell-to-cell communication. However, there is a lack of knowledge on the regulation of EVs and how this in turn facilitates the communication between cells in the brain. Here, we characterized microglial EVs under inflammatory conditions and investigated the effects of inflammation on the EV size, quantity, and protein content. Methods: We have utilized western blot, nanoparticle tracking analysis (NTA), and mass spectrometry to characterize EVs and examine the alterations of secreted EVs from a microglial cell line (BV2) following lipopolysaccharide (LPS) and tumor necrosis factor (TNF) inhibitor (etanercept) treatments, or either alone. The inflammatory responses were measured with multiplex cytokine ELISA and western blot. We also subjected TNF knockout mice to experimental stroke (permanent middle cerebral artery occlusion) and validated the effect of TNF inhibition on EV release. Results: Our analysis of EVs originating from activated BV2 microglia revealed a significant increase in the intravesicular levels of TNF and interleukin (IL)-6. We also observed that the number of EVs released was reduced both in vitro and in vivo when inflammation was inhibited via the TNF pathway. -
Investigation of Microbial Interactions and Ecosystem
INVESTIGATION OF MICROBIAL INTERACTIONS AND ECOSYSTEM DYNAMICS IN A LOW O2 CYANOBACTERIAL MAT by Alexander A. Voorhies A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Earth and Environmental Sciences) in The University of Michigan 2014 Doctoral Committee: Assistant Professor Gregory J. Dick, Chair Associate Professor Matthew R. Chapman Assistant Professor Vincent J. Denef Professor Daniel C. Fisher Associate Professor Nathan D. Sheldon © Alexander A. Voorhies 2014 DEDICATION To my wife Hannah ii ACKNOWLEDGEMENTS Funding for the research presented here was provided by the National Science Foundation, the University of Michigan CCMB Pilot Grant, and a Scott Turner research award from the University of Michigan Earth and Environmental Sciences Department. I am grateful for the opportunities to explore my scientific interests this funding has made possible. I would like to acknowledge my co-authors and collaborators, who offered advice, guidance and immeasurable assistance throughout this process. Gregory J. Dick, Bopi Biddanda, Scott T. Kendall, Sunit Jain, Daniel N. Marcus, Stephen C. Nold and Nathan D. Sheldon are co- authors on CHAPTER II, which was published in Geobiology in 2012; Gregory J. Dick was a co-author on CHAPTER III, which is in preparation for publication; and Gregory J. Dick, Sarah D. Eisenlord, Daniel N. Marcus, Melissa B. Duhaime, Bopaiah A. Biddanda and James D Cavalcoli are co-authors on Chapter IV, which is in preparation for publication. I thank my committee members: Matt Chapman, Nathan Sheldon, Vincent Denef and Dan Fisher. Their input and guidance throughout my graduate studies has kept me on track and made significant enhancements to this dissertation. -
Supplementary Table 1. the List of Proteins with at Least 2 Unique
Supplementary table 1. The list of proteins with at least 2 unique peptides identified in 3D cultured keratinocytes exposed to UVA (30 J/cm2) or UVB irradiation (60 mJ/cm2) and treated with treated with rutin [25 µM] or/and ascorbic acid [100 µM]. Nr Accession Description 1 A0A024QZN4 Vinculin 2 A0A024QZN9 Voltage-dependent anion channel 2 3 A0A024QZV0 HCG1811539 4 A0A024QZX3 Serpin peptidase inhibitor 5 A0A024QZZ7 Histone H2B 6 A0A024R1A3 Ubiquitin-activating enzyme E1 7 A0A024R1K7 Tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein 8 A0A024R280 Phosphoserine aminotransferase 1 9 A0A024R2Q4 Ribosomal protein L15 10 A0A024R321 Filamin B 11 A0A024R382 CNDP dipeptidase 2 12 A0A024R3V9 HCG37498 13 A0A024R3X7 Heat shock 10kDa protein 1 (Chaperonin 10) 14 A0A024R408 Actin related protein 2/3 complex, subunit 2, 15 A0A024R4U3 Tubulin tyrosine ligase-like family 16 A0A024R592 Glucosidase 17 A0A024R5Z8 RAB11A, member RAS oncogene family 18 A0A024R652 Methylenetetrahydrofolate dehydrogenase 19 A0A024R6C9 Dihydrolipoamide S-succinyltransferase 20 A0A024R6D4 Enhancer of rudimentary homolog 21 A0A024R7F7 Transportin 2 22 A0A024R7T3 Heterogeneous nuclear ribonucleoprotein F 23 A0A024R814 Ribosomal protein L7 24 A0A024R872 Chromosome 9 open reading frame 88 25 A0A024R895 SET translocation 26 A0A024R8W0 DEAD (Asp-Glu-Ala-Asp) box polypeptide 48 27 A0A024R9E2 Poly(A) binding protein, cytoplasmic 1 28 A0A024RA28 Heterogeneous nuclear ribonucleoprotein A2/B1 29 A0A024RA52 Proteasome subunit alpha 30 A0A024RAE4 Cell division cycle 42 31 -
Inhibition of the MID1 Protein Complex
Matthes et al. Cell Death Discovery (2018) 4:4 DOI 10.1038/s41420-017-0003-8 Cell Death Discovery ARTICLE Open Access Inhibition of the MID1 protein complex: a novel approach targeting APP protein synthesis Frank Matthes1,MoritzM.Hettich1, Judith Schilling1, Diana Flores-Dominguez1, Nelli Blank1, Thomas Wiglenda2, Alexander Buntru2,HannaWolf1, Stephanie Weber1,InaVorberg 1, Alina Dagane2, Gunnar Dittmar2,3,ErichWanker2, Dan Ehninger1 and Sybille Krauss1 Abstract Alzheimer’s disease (AD) is characterized by two neuropathological hallmarks: senile plaques, which are composed of amyloid-β (Aβ) peptides, and neurofibrillary tangles, which are composed of hyperphosphorylated tau protein. Aβ peptides are derived from sequential proteolytic cleavage of the amyloid precursor protein (APP). In this study, we identified a so far unknown mode of regulation of APP protein synthesis involving the MID1 protein complex: MID1 binds to and regulates the translation of APP mRNA. The underlying mode of action of MID1 involves the mTOR pathway. Thus, inhibition of the MID1 complex reduces the APP protein level in cultures of primary neurons. Based on this, we used one compound that we discovered previously to interfere with the MID1 complex, metformin, for in vivo experiments. Indeed, long-term treatment with metformin decreased APP protein expression levels and consequently Aβ in an AD mouse model. Importantly, we have initiated the metformin treatment late in life, at a time-point where mice were in an already progressed state of the disease, and could observe an improved behavioral phenotype. These 1234567890 1234567890 findings together with our previous observation, showing that inhibition of the MID1 complex by metformin also decreases tau phosphorylation, make the MID1 complex a particularly interesting drug target for treating AD. -
Plant Sulfur Metabolism — the Reduction of Sulfate to Sulfite Julie Ann Bick and Thomas Leustek∗
240 Plant sulfur metabolism Ð the reduction of sulfate to sul®te Julie Ann Bick and Thomas Leustek∗ Until recently the pathway by which plants reduce activated matter of contention and is the focus of this review. sulfate to sul®te was unresolved. Recent ®ndings on two Skipping this step for the moment, the remaining reactions enzymes termed 5′-adenylylsulfate (APS) sulfotransferase and in the pathway to cysteine include the reduction of APS reductase have provided new information on this topic. sul®te to sul®de catalyzed by ferredoxin-dependent sul®te On the basis of their similarities it is now proposed that these reductase [6], then assimilation of inorganic sul®de by proteins are the same enzyme. These discoveries con®rm that the sulfhydration of O-acetylserine [7••]. The second the sulfate assimilation pathway in plants differs from that in assimilation pathway branching from APS is used for the other sulfate assimilating organisms. synthesis of a variety of sulfated compounds carried out by speci®c sulfotransferases (ST's). These enzymes use the phosphorylated derivative of APS, 3-phosphoadenosine- Addresses 5′-phosphosulfate (PAPS)[4••,5••], formed by APS kinase Biotechnology Center for Agriculture and the Environment, Rutgers University, 59 Dudley Road, Foran Hall, New Brunswick, New Jersey (AK). 08901-8520 USA ∗e-mail: [email protected] This paper focuses on the latest information on the Current Opinion in Plant Biology 1998, 1:240±244 enzyme catalyzing the reduction of APS. The recent puri®cation of APSSTase from a marine alga provides the http://biomednet.com/elecref/1369526600100240 ®rst evidence on the catalytic properties of this enzyme. -
BMC Genomics Biomed Central
BMC Genomics BioMed Central Research article Open Access Metabolic reconstruction of sulfur assimilation in the extremophile Acidithiobacillus ferrooxidans based on genome analysis Jorge Valdés1, Felipe Veloso†1,3, Eugenia Jedlicki†2 and David Holmes*1,3 Address: 1Laboratory of Bioinformatics and Genome Biology, University of Santiago (USACH), Santiago, Chile, 2Program of Cellular and Molecular Biology, I.C.B.M., Faculty of Medicine, University of Chile, Santiago, Chile and 3Millennium Institute of Fundamental and Applied Biology, Santiago, Chile Email: Jorge Valdés - [email protected]; Felipe Veloso - [email protected]; Eugenia Jedlicki - [email protected]; David Holmes* - [email protected] * Corresponding author †Equal contributors Published: 15 December 2003 Received: 01 September 2003 Accepted: 15 December 2003 BMC Genomics 2003, 4:51 This article is available from: http://www.biomedcentral.com/1471-2164/4/51 © 2003 Valdés et al; licensee BioMed Central Ltd. This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original URL. Abstract Background: Acidithiobacillus ferrooxidans is a gamma-proteobacterium that lives at pH2 and obtains energy by the oxidation of sulfur and iron. It is used in the biomining industry for the recovery of metals and is one of the causative agents of acid mine drainage. Effective tools for the study of its genetics and physiology are not in widespread use and, despite considerable effort, an understanding of its unusual physiology remains at a rudimentary level. Nearly complete genome sequences of A. ferrooxidans are available from two public sources and we have exploited this information to reconstruct aspects of its sulfur metabolism.