Microorganisms and Methods for the Biosynthesis of Aromatics, 2,4-Pentadienoate and 1,3- Butadiene
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Heterologous Expression and Identification of the Genes Involved
Heterologous Expression and Identification of the Genes Involved in Anaerobic Degradation of 1,3-Dihydroxybenzene (Resorcinol) in Azoarcus anaerobiusᰔ Paula I. Darley,1† Jutta A. Hellstern,1†‡ Javier I. Medina-Bellver,2 Silvia Marque´s,2 Bernhard Schink,1 and Bodo Philipp1* Fachbereich Biologie, Universita¨t Konstanz, D-78457 Constance, Germany,1 and Estacio´n Experimental del Zaidı´n, C/. Profesor Albareda 1, E-18008 Granada, Spain2 Received 9 November 2006/Accepted 9 March 2007 Azoarcus anaerobius, a strictly anaerobic, gram-negative bacterium, utilizes resorcinol as a sole carbon and energy source with nitrate as an electron acceptor. Previously, we showed that resorcinol degradation by this bacterium is initiated by two oxidative steps, both catalyzed by membrane-associated enzymes that lead to the formation of hydroxyhydroquinone (HHQ; 1,2,4-benzenetriol) and 2-hydroxy-1,4-benzoquinone (HBQ). This study presents evidence for the further degradation of HBQ in cell extracts to form acetic and malic acids. To identify the A. anaerobius genes required for anaerobic resorcinol catabolism, a cosmid library with genomic DNA was constructed and transformed into the phylogenetically related species Thauera aromatica, which cannot grow with resorcinol. By heterologous complementation, a transconjugant was identified that gained the ability to metabolize resorcinol. Its cosmid, designated R؉, carries a 29.88-kb chromosomal DNA fragment containing 22 putative genes. In cell extracts of T. aromatica transconjugants, resorcinol was degraded to HHQ, HBQ, and acetate, suggesting that cosmid R؉ carried all of the genes necessary for resorcinol degradation. On the basis of the physiological characterization of T. aromatica transconjugants carrying transposon insertions -in different genes of cosmid R؉, eight open reading frames were found to be essential for resorcinol miner alization. -
Metaproteogenomic Insights Beyond Bacterial Response to Naphthalene
ORIGINAL ARTICLE ISME Journal – Original article Metaproteogenomic insights beyond bacterial response to 5 naphthalene exposure and bio-stimulation María-Eugenia Guazzaroni, Florian-Alexander Herbst, Iván Lores, Javier Tamames, Ana Isabel Peláez, Nieves López-Cortés, María Alcaide, Mercedes V. del Pozo, José María Vieites, Martin von Bergen, José Luis R. Gallego, Rafael Bargiela, Arantxa López-López, Dietmar H. Pieper, Ramón Rosselló-Móra, Jesús Sánchez, Jana Seifert and Manuel Ferrer 10 Supporting Online Material includes Text (Supporting Materials and Methods) Tables S1 to S9 Figures S1 to S7 1 SUPPORTING TEXT Supporting Materials and Methods Soil characterisation Soil pH was measured in a suspension of soil and water (1:2.5) with a glass electrode, and 5 electrical conductivity was measured in the same extract (diluted 1:5). Primary soil characteristics were determined using standard techniques, such as dichromate oxidation (organic matter content), the Kjeldahl method (nitrogen content), the Olsen method (phosphorus content) and a Bernard calcimeter (carbonate content). The Bouyoucos Densimetry method was used to establish textural data. Exchangeable cations (Ca, Mg, K and 10 Na) extracted with 1 M NH 4Cl and exchangeable aluminium extracted with 1 M KCl were determined using atomic absorption/emission spectrophotometry with an AA200 PerkinElmer analyser. The effective cation exchange capacity (ECEC) was calculated as the sum of the values of the last two measurements (sum of the exchangeable cations and the exchangeable Al). Analyses were performed immediately after sampling. 15 Hydrocarbon analysis Extraction (5 g of sample N and Nbs) was performed with dichloromethane:acetone (1:1) using a Soxtherm extraction apparatus (Gerhardt GmbH & Co. -
De Novo Sequencing and Transcriptome Analysis Reveal Key Genes Regulating Steroid Metabolism in Leaves, Roots, Adventitious Roots and Calli of Periploca Sepium Bunge
ORIGINAL RESEARCH published: 21 April 2017 doi: 10.3389/fpls.2017.00594 De novo Sequencing and Transcriptome Analysis Reveal Key Genes Regulating Steroid Metabolism in Leaves, Roots, Adventitious Roots and Calli of Periploca sepium Bunge Jian Zhang 1, 2, 3, Xinglin Li 1, 3*, Fuping Lu 1, 3, Shanying Wang 1, 3, Yunhe An 4, Xiaoxing Su 4, Xiankuan Li 2, Lin Ma 2 and Guangjian Han 5 1 Key Lab of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Ministry of Education, Tianjin, China, 2 School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China, 3 College of Bioengineering, Tianjin University of Science and Technology, Tianjin, China, 4 Beijing Center for Physical and Chemical Analysis, Beijing, China, 5 Shachuan Biotechnology, Tianjin, China Edited by: Periploca sepium Bunge is a traditional medicinal plant, whose root bark is important Peng Zhang, Institute of Plant Physiology and for Chinese herbal medicine. Its major bioactive compounds are C21 steroids and Ecology, SIBS, CAS, China periplocin, a kind of cardiac glycoside, which are derived from the steroid synthesis Reviewed by: pathway. However, research on P. sepium genome or transcriptomes and their related Kun Yu, genes has been lacking for a long time. In this study we estimated this species Hubei University of Chinese Medicine, China nuclear genome size at 170 Mb (using flow cytometry). Then, RNA sequencing of Jun Yang, four different tissue samples of P. sepium (leaves, roots, adventitious roots, and Shanghai Chenshan Plant Science Research Center (CAS), China calli) was done using the sequencing platform Illumina/Solexa Hiseq 2,500. -
Table S1-Final.Xlsx
Table S1. Functional gene families covered on the GeoChip 5.0. No. of sequence‐ No. of group‐ No. of total No. of covered No. of total Category Subcategory Subcategory 2 Gene Encoded Enzyme specific probesa specific probesa probes on 5M CDSa probes on 5S Categories for Geochemical Cycling Carbon Cycling Carbon Degradation Agar beta_agarase Agarase 42 79 217 121 Agar Total 42 79 0 217 121 Alginate alginase Alginase 45 200 512 245 Alginate Total 45 200 0 512 245 Cellulose Endoglucanase Endoglucanase 198 248 446 740 343 Cellulose Total 198 248 446 740 343 Chitin Acetylglucosaminidase Acetylglucosaminidase 119 976 1095 3088 1116 Chitinase Chitinase 649 1231 1880 3285 1411 endochitinase Endochitinase 213 334 1104 547 exochitinase Exochitinase 14 55 259 69 Chitin Total 995 2596 2975 7736 3143 Glyoxylate cycle AceA Isocitrate lyase 69 373 442 887 0 AceB Malate synthase A 90 610 700 1457 0 Glyoxylate cycle Total 159 983 1142 2344 0 Hemicellulose Ara Arabinofuranosidase 172 543 715 1367 827 Mannanase Mannanase 159 238 397 639 478 Xylanase Xylanase 150 653 803 1739 858 Hemicellulose Total 481 1434 1915 3745 2163 Heparin heparinase Heparinase 7 53 166 60 Heparin Total 7 53 0 166 60 Hyaluronic acid hyaluronidase Hyaluronidase 880 383 88 Hyaluronidase Total 8 80 0 383 88 Lignin Glx Glyoxal oxidase 103 40 143 178 125 Mnp Manganese peroxidase 50 13 63 74 66 Phenol_oxidase Laccase or phenol oxidase 188 372 560 1009 677 Lignin Total 341 425 766 1261 868 Pectin Pectinase (pectate_lyase) Pectate lyase 53 252 305 827 321 Pme Pectin methylesterase 25 240 265 -
Supplementary Materials
1 Supplementary Materials: Supplemental Figure 1. Gene expression profiles of kidneys in the Fcgr2b-/- and Fcgr2b-/-. Stinggt/gt mice. (A) A heat map of microarray data show the genes that significantly changed up to 2 fold compared between Fcgr2b-/- and Fcgr2b-/-. Stinggt/gt mice (N=4 mice per group; p<0.05). Data show in log2 (sample/wild-type). 2 Supplemental Figure 2. Sting signaling is essential for immuno-phenotypes of the Fcgr2b-/-lupus mice. (A-C) Flow cytometry analysis of splenocytes isolated from wild-type, Fcgr2b-/- and Fcgr2b-/-. Stinggt/gt mice at the age of 6-7 months (N= 13-14 per group). Data shown in the percentage of (A) CD4+ ICOS+ cells, (B) B220+ I-Ab+ cells and (C) CD138+ cells. Data show as mean ± SEM (*p < 0.05, **p<0.01 and ***p<0.001). 3 Supplemental Figure 3. Phenotypes of Sting activated dendritic cells. (A) Representative of western blot analysis from immunoprecipitation with Sting of Fcgr2b-/- mice (N= 4). The band was shown in STING protein of activated BMDC with DMXAA at 0, 3 and 6 hr. and phosphorylation of STING at Ser357. (B) Mass spectra of phosphorylation of STING at Ser357 of activated BMDC from Fcgr2b-/- mice after stimulated with DMXAA for 3 hour and followed by immunoprecipitation with STING. (C) Sting-activated BMDC were co-cultured with LYN inhibitor PP2 and analyzed by flow cytometry, which showed the mean fluorescence intensity (MFI) of IAb expressing DC (N = 3 mice per group). 4 Supplemental Table 1. Lists of up and down of regulated proteins Accession No. -
Structural and Biochemical Characterizations of Three Potential Drug Targets from Pathogens
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 2020 Structural and Biochemical Characterizations of Three Potential Drug Targets from Pathogens LU LU ACTA UNIVERSITATIS UPSALIENSIS ISSN 1651-6214 ISBN 978-91-513-1148-7 UPPSALA urn:nbn:se:uu:diva-435815 2021 Dissertation presented at Uppsala University to be publicly examined in Room A1:111a, BMC, Husargatan 3, Uppsala, Friday, 16 April 2021 at 13:15 for the degree of Doctor of Philosophy. The examination will be conducted in English. Faculty examiner: Christian Cambillau. Abstract Lu, L. 2021. Structural and Biochemical Characterizations of Three Potential Drug Targets from Pathogens. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 2020. 91 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-1148-7. As antibiotic resistance of various pathogens emerged globally, the need for new effective drugs with novel modes of action became urgent. In this thesis, we focus on infectious diseases, e.g. tuberculosis, malaria, and nosocomial infections, and the corresponding causative pathogens, Mycobacterium tuberculosis, Plasmodium falciparum, and the Gram-negative ESKAPE pathogens that underlie so many healthcare-acquired diseases. Following the same- target-other-pathogen (STOP) strategy, we attempted to comprehensively explore the properties of three promising drug targets. Signal peptidase I (SPase I), existing both in Gram-negative and Gram-positive bacteria, as well as in parasites, is vital for cell viability, due to its critical role in signal peptide cleavage, thus, protein maturation, and secreted protein transport. Three factors, comprising essentiality, a unique mode of action, and easy accessibility, make it an attractive drug target. -
Sauret-Gü Eto S
Mutations in Escherichia coli aceE and ribB Genes Allow Survival of Strains Defective in the First Step of the Isoprenoid Biosynthesis Pathway Jordi Perez-Gil1, Eva Maria Uros1, Susanna Sauret-Gu¨ eto1¤, L. Maria Lois1, James Kirby2, Minobu Nishimoto2, Edward E. K. Baidoo2, Jay D. Keasling2, Albert Boronat1,3, Manuel Rodriguez- Concepcion1* 1 Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, Barcelona, Spain, 2 Joint BioEnergy Institute, Emeryville, California, United States of America, 3 Department de Bioquı´mica i Biologia Molecular, Universitat de Barcelona, Barcelona, Spain Abstract A functional 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway is required for isoprenoid biosynthesis and hence survival in Escherichia coli and most other bacteria. In the first two steps of the pathway, MEP is produced from the central metabolic intermediates pyruvate and glyceraldehyde 3-phosphate via 1-deoxy-D-xylulose 5-phosphate (DXP) by the activity of the enzymes DXP synthase (DXS) and DXP reductoisomerase (DXR). Because the MEP pathway is absent from humans, it was proposed as a promising new target to develop new antibiotics. However, the lethal phenotype caused by the deletion of DXS or DXR was found to be suppressed with a relatively high efficiency by unidentified mutations. Here we report that several mutations in the unrelated genes aceE and ribB rescue growth of DXS-defective mutants because the encoded enzymes allowed the production of sufficient DXP in vivo. Together, this work unveils the diversity of mechanisms that can evolve in bacteria to circumvent a blockage of the first step of the MEP pathway. -
<I>Lactobacillus Reuteri</I>
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Faculty Publications in Food Science and Food Science and Technology Department Technology 2014 From prediction to function using evolutionary genomics: Human-specific ecotypes of Lactobacillus reuteri have diverse probiotic functions Jennifer K. Spinler Texas Children’s Hospital, [email protected] Amrita Sontakke Baylor College of Medicine Emily B. Hollister Baylor College of Medicine Susan F. Venable Baylor College of Medicine Phaik Lyn Oh University of Nebraska, Lincoln See next page for additional authors Follow this and additional works at: http://digitalcommons.unl.edu/foodsciefacpub Spinler, Jennifer K.; Sontakke, Amrita; Hollister, Emily B.; Venable, Susan F.; Oh, Phaik Lyn; Balderas, Miriam A.; Saulnier, Delphine M.A.; Mistretta, Toni-Ann; Devaraj, Sridevi; Walter, Jens; Versalovic, James; and Highlander, Sarah K., "From prediction to function using evolutionary genomics: Human-specific ce otypes of Lactobacillus reuteri have diverse probiotic functions" (2014). Faculty Publications in Food Science and Technology. 132. http://digitalcommons.unl.edu/foodsciefacpub/132 This Article is brought to you for free and open access by the Food Science and Technology Department at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Faculty Publications in Food Science and Technology by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Authors Jennifer K. Spinler, Amrita Sontakke, Emily B. Hollister, -
( 12 ) United States Patent
US010167477B2 (12 ) United States Patent ( 10 ) Patent No. : US 10 , 167, 477 B2 Pharkya (45 ) Date of Patent : Jan . 1 , 2019 ( 54 ) MICROORGANISMS AND METHODS FOR 5 , 143, 834 A 9 / 1992 Glassner et al . 5 , 168 ,055 A 12 / 1992 Datta et al. THE PRODUCTION OF ANILINE 5 , 168 ,056 A 12 / 1992 Frost .. .. 435 / 472 5 , 173 ,429 A 12/ 1992 Gaddy et al. (71 ) Applicant: Genomatica , Inc. , San Diego , CA (US ) 5 , 182 , 199 A 1 / 1993 Hartley 5 , 192 ,673 A 3 / 1993 Jain et al . (72 ) Inventor : Priti Pharkya, San Diego , CA (US ) 5 , 403 , 721 A 4 / 1995 Ward , Jr . et al. 5 ,413 , 922 A 5 / 1995 Matsuyama et al. 5 ,416 , 020 A 5 / 1995 Severson et al . (73 ) Assignee : GENOMATICA , INC . , San Diego, CA 5 ,457 , 040 A 10 / 1995 Jarry et al . (US ) 5 ,478 , 952 A 12 / 1995 Schwartz 5 ,487 ,987 A 1 / 1996 Frost et al. ( * ) Notice : Subject to any disclaimer, the term of this 5 , 504 ,004 A 4 / 1996 Guettler et al. patent is extended or adjusted under 35 5 , 521 ,075 A 5 / 1996 Guettler et al . U . S . C . 154 ( b ) by 0 days. 5 ,573 , 931 A 11/ 1996 Guettler et al. 5 ,616 , 496 A 4 / 1997 Frost et al. 5 ,686 ,276 A 11 / 1997 Lafend et al . ( 21 ) Appl. No. : 15 /914 , 308 5 ,700 , 934 A 12 / 1997 Wolters et al. 5 ,770 ,435 A 6 / 1998 Donnelly et al . (22 ) Filed : Mar. 7 , 2018 5 , 807 , 722 A 9 / 1998 Gaddy et al . -
Open Matthew R Moreau Ph.D. Dissertation Finalfinal.Pdf
The Pennsylvania State University The Graduate School Department of Veterinary and Biomedical Sciences Pathobiology Program PATHOGENOMICS AND SOURCE DYNAMICS OF SALMONELLA ENTERICA SEROVAR ENTERITIDIS A Dissertation in Pathobiology by Matthew Raymond Moreau 2015 Matthew R. Moreau Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy May 2015 The Dissertation of Matthew R. Moreau was reviewed and approved* by the following: Subhashinie Kariyawasam Associate Professor, Veterinary and Biomedical Sciences Dissertation Adviser Co-Chair of Committee Bhushan M. Jayarao Professor, Veterinary and Biomedical Sciences Dissertation Adviser Co-Chair of Committee Mary J. Kennett Professor, Veterinary and Biomedical Sciences Vijay Kumar Assistant Professor, Department of Nutritional Sciences Anthony Schmitt Associate Professor, Veterinary and Biomedical Sciences Head of the Pathobiology Graduate Program *Signatures are on file in the Graduate School iii ABSTRACT Salmonella enterica serovar Enteritidis (SE) is one of the most frequent common causes of morbidity and mortality in humans due to consumption of contaminated eggs and egg products. The association between egg contamination and foodborne outbreaks of SE suggests egg derived SE might be more adept to cause human illness than SE from other sources. Therefore, there is a need to understand the molecular mechanisms underlying the ability of egg- derived SE to colonize the chicken intestinal and reproductive tracts and cause disease in the human host. To this end, the present study was carried out in three objectives. The first objective was to sequence two egg-derived SE isolates belonging to the PFGE type JEGX01.0004 to identify the genes that might be involved in SE colonization and/or pathogenesis. -
Nucleophile Specificity in Anthranilate Synthase, Aminodeoxychorismate Synthase, Isochorismate Synthase, and Salicylate Synthase Kristin T
Biochemistry 2010, 49, 2851–2859 2851 DOI: 10.1021/bi100021x Nucleophile Specificity in Anthranilate Synthase, Aminodeoxychorismate Synthase, Isochorismate Synthase, and Salicylate Synthase Kristin T. Ziebart and Michael D. Toney* Department of Chemistry, University of California, Davis, California 95616 Received January 7, 2010; Revised Manuscript Received February 15, 2010 ABSTRACT: Anthranilate synthase (AS), aminodeoxychorismate synthase (ADCS), isochorismate synthase (IS), and salicylate synthase (SS) are structurally homologous chorismate-utilizing enzymes that carry out the first committed step in the formation of tryptophan, folate, and the siderophores enterobactin and mycobactin, respectively. Each enzyme catalyzes a nucleophilic substitution reaction, but IS and SS are uniquely able to employ water as a nucleophile. Lys147 has been proposed to be the catalytic base that activates water for nucleophilic attack in IS and SS reactions; in AS and ADCS, glutamine occupies the analogous position. To probe the role of Lys147 as a catalytic base, the K147Q IS, K147Q SS, Q147K AS, and Q147K ADCS mutants were prepared and enzyme reactions were analyzed by high-performance liquid chromatography. Q147K AS employs water as a nucleophile to a small extent, and the cognate activities of K147Q IS and K147Q SS were reduced ∼25- and ∼50-fold, respectively. Therefore, Lys147 is not solely responsible for activation of water as a nucleophile. Additional factors that contribute to water activation are proposed. A change in substrate preference for K147Q SS pyruvate lyase activity indicates Lys147 partially controls SS reaction specificity. Finally, we demonstrate that AS, ADCS, IS, and SS do not possess choris- mate mutase promiscuous activity, contrary to several previous reports. -
Microbial Biochemistry, 2Nd Edition
Microbial Biochemistry . G.N. Cohen Microbial Biochemistry Second Edition Prof. G.N. Cohen Institut Pasteur rue du Docteur Roux 28 75724 Paris France [email protected] ISBN 978-90-481-9436-0 e-ISBN 978-90-481-9437-7 DOI 10.1007/978-90-481-9437-7 Springer Dordrecht Heidelberg London New York Library of Congress Control Number: 2010938472 # Springer Science+Business Media B.V. 2011 No part of this work may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording or otherwise, without written permission from the Publisher, with the exception of any material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) Foreword This book originates from almost 60 years of living in the company of micro- organisms, mainly with Escherichia coli. My scientific life has taken place almost exclusively at the Institut Pasteur in Paris, where many concepts of modern molecular biology were born or developed. The present work emphasizes the interest of microbial physiology, biochemistry and genetics. It takes into account the considerable advances which have been made in the field in the last 30 years by the introduction of gene cloning and sequencing and by the exponential development of physical methods such as X-ray crystallog- raphy of proteins. The younger generation of biochemists is legitimately interested in the problems raised by differentiation and development in higher organisms, and also in neuros- ciences.