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Purification, Crystallization and Preliminary X-Ray Diffraction Analysis of Exodeoxyribonuclease III from Crenarchaeon Sulfolobus Tokodaii Strain 7
Crystal Structure Theory and Applications, 2013, 2, 155-158 Published Online December 2013 (http://www.scirp.org/journal/csta) http://dx.doi.org/10.4236/csta.2013.24021 Purification, Crystallization and Preliminary X-Ray Diffraction Analysis of Exodeoxyribonuclease III from Crenarchaeon Sulfolobus tokodaii Strain 7 Shuichi Miyamoto1*, Chieko Naoe2, Masaru Tsunoda3, Kazuo T. Nakamura2 1Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan 2School of Pharmacy, Showa University, Tokyo, Japan 3Faculty of Pharmacy, Iwaki Meisei University, Iwaki, Japan Email: *[email protected] Received October 13, 2013; revised November 12, 2013; accepted December 6, 2013 Copyright © 2013 Shuichi Miyamoto et al. This is an open access article distributed under the Creative Commons Attribution Li- cense, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. ABSTRACT Exodeoxyribonuclease III (EXOIII) acts as a 3’→5’ exonuclease and is homologous to purinic/apyrimidinic (AP) en- donuclease (APE), which plays an important role in the base excision repair pathway. To structurally investigate the reaction and substrate recognition mechanisms of EXOIII, a crystallographic study of EXOIII from Sulfolobus tokodaii strain 7 was carried out. The purified enzyme was crystallized by using the hanging-drop vapor-diffusion method. The crystals belonged to space group C2, with unit-cell parameters a = 154.2, b = 47.7, c = 92.4 Å, β = 125.8˚ and diffracted to 1.5 Å resolution. Keywords: Crenarchaeon; Crystallization; Exodeoxyribonuclease; Sulfolobus tokodaii; X-Ray Diffraction 1. Introduction formational change upon protein binding that permits complex formation and activation of attacking water, A variety of mechanisms exist to repair damaged DNA leading to incision, in the presence of Mg2+ [10,11]. -
Class-I and Class-II Fumarases Are a Paradigm of the Recruitment Of
bioRxiv preprint doi: https://doi.org/10.1101/2020.08.04.232652; this version posted August 4, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 Class-I and Class-II fumarases are a paradigm of the recruitment of 2 metabolites and metabolic enzymes for signalling of the DNA Damage 3 Response during evolution. 4 5 Yardena Silas 1, 2, Esti Singer 1, Norbert Lehming 2 and Ophry Pines 1, 2* 6 1. Department of Microbiology and Molecular Genetics, IMRIC, Faculty of Medicine, 7 Hebrew University, Jerusalem, Israel 8 2. CREATE‑NUS‑HUJ Program and the Department of Microbiology and Immunology, 9 Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 10 Singapore. 11 12 [email protected] 13 [email protected] 14 [email protected] 15 [email protected] 16 17 18 19 20 21 22 23 24 25 26 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.08.04.232652; this version posted August 4, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 27 Abstract 28 Class-II fumarase (Fumarate Hydratase, FH) and its metabolic intermediates are essential 29 components in the DNA damage response (DDR) in eukaryotic cells (human and yeast) and 30 in the prokaryote Bacillus subtilis. -
1Ako Lichtarge Lab 2006
Pages 1–6 1ako Evolutionary trace report by report maker November 5, 2010 4.3.3 DSSP 5 4.3.4 HSSP 5 4.3.5 LaTex 5 4.3.6 Muscle 5 4.3.7 Pymol 5 4.4 Note about ET Viewer 6 4.5 Citing this work 6 4.6 About report maker 6 4.7 Attachments 6 1 INTRODUCTION From the original Protein Data Bank entry (PDB id 1ako): Title: Exonuclease iii from escherichia coli Compound: Mol id: 1; molecule: exonuclease iii; chain: a; ec: 3.1.11.2; engineered: yes Organism, scientific name: Escherichia Coli; 1ako contains a single unique chain 1akoA (268 residues long). 2 CHAIN 1AKOA 2.1 P09030 overview CONTENTS From SwissProt, id P09030, 100% identical to 1akoA: Description: Exodeoxyribonuclease III (EC 3.1.11.2) (Exonuclease 1 Introduction 1 III) (EXO III) (AP endonuclease VI). 2 Chain 1akoA 1 Organism, scientific name: Escherichia coli. 2.1 P09030 overview 1 Taxonomy: Bacteria; Proteobacteria; Gammaproteobacteria; 2.2 Multiple sequence alignment for 1akoA 1 Enterobacteriales; Enterobacteriaceae; Escherichia. 2.3 Residue ranking in 1akoA 1 Function: Major apurinic-apyrimidinic endonuclease of E.coli. It 2.4 Top ranking residues in 1akoA and their position on removes the damaged DNA at cytosines and guanines by cleaving the structure 2 on the 3’ side of the AP site by a beta-elimination reaction. It exhi- 2.4.1 Clustering of residues at 25% coverage. 2 bits 3’-5’-exonuclease, 3’-phosphomonoesterase, 3’-repair diesterase 2.4.2 Possible novel functional surfaces at 25% and ribonuclease H activities. -
Yeast Genome Gazetteer P35-65
gazetteer Metabolism 35 tRNA modification mitochondrial transport amino-acid metabolism other tRNA-transcription activities vesicular transport (Golgi network, etc.) nitrogen and sulphur metabolism mRNA synthesis peroxisomal transport nucleotide metabolism mRNA processing (splicing) vacuolar transport phosphate metabolism mRNA processing (5’-end, 3’-end processing extracellular transport carbohydrate metabolism and mRNA degradation) cellular import lipid, fatty-acid and sterol metabolism other mRNA-transcription activities other intracellular-transport activities biosynthesis of vitamins, cofactors and RNA transport prosthetic groups other transcription activities Cellular organization and biogenesis 54 ionic homeostasis organization and biogenesis of cell wall and Protein synthesis 48 plasma membrane Energy 40 ribosomal proteins organization and biogenesis of glycolysis translation (initiation,elongation and cytoskeleton gluconeogenesis termination) organization and biogenesis of endoplasmic pentose-phosphate pathway translational control reticulum and Golgi tricarboxylic-acid pathway tRNA synthetases organization and biogenesis of chromosome respiration other protein-synthesis activities structure fermentation mitochondrial organization and biogenesis metabolism of energy reserves (glycogen Protein destination 49 peroxisomal organization and biogenesis and trehalose) protein folding and stabilization endosomal organization and biogenesis other energy-generation activities protein targeting, sorting and translocation vacuolar and lysosomal -
Exploring the Non-Canonical Functions of Metabolic Enzymes Peiwei Huangyang1,2 and M
© 2018. Published by The Company of Biologists Ltd | Disease Models & Mechanisms (2018) 11, dmm033365. doi:10.1242/dmm.033365 REVIEW SPECIAL COLLECTION: CANCER METABOLISM Hidden features: exploring the non-canonical functions of metabolic enzymes Peiwei Huangyang1,2 and M. Celeste Simon1,3,* ABSTRACT A key finding from studies of metabolic enzymes is the existence The study of cellular metabolism has been rigorously revisited over the of mechanistic links between their nuclear localization and the past decade, especially in the field of cancer research, revealing new regulation of transcription. By modulating gene expression, insights that expand our understanding of malignancy. Among these metabolic enzymes themselves facilitate adaptation to rapidly insights isthe discovery that various metabolic enzymes have surprising changing environments. Furthermore, they can directly shape a ’ activities outside of their established metabolic roles, including in cell s epigenetic landscape (Kaelin and McKnight, 2013). the regulation of gene expression, DNA damage repair, cell cycle Strikingly, several metabolic enzymes exert completely distinct progression and apoptosis. Many of these newly identified functions are functions in different cellular compartments. Nuclear fructose activated in response to growth factor signaling, nutrient and oxygen bisphosphate aldolase, for example, directly interacts with RNA ́ availability, and external stress. As such, multifaceted enzymes directly polymerase III to control transcription (Ciesla et al., 2014), -
Appendix Table A.2.3.1 Full Table of All Chicken Proteins and Human Orthologs Pool Accession Human Human Protein Human Product Cell Angios Log2( Endo Gene Comp
Appendix table A.2.3.1 Full table of all chicken proteins and human orthologs Pool Accession Human Human Protein Human Product Cell AngioS log2( Endo Gene comp. core FC) Specific CIKL F1NWM6 KDR NP_002244 kinase insert domain receptor (a type III receptor tyrosine M 94 4 kinase) CWT Q8AYD0 CDH5 NP_001786 cadherin 5, type 2 (vascular endothelium) M 90 8.45 specific CWT Q8AYD0 CDH5 NP_001786 cadherin 5, type 2 (vascular endothelium) M 90 8.45 specific CIKL F1P1Y9 CDH5 NP_001786 cadherin 5, type 2 (vascular endothelium) M 90 8.45 specific CIKL F1P1Y9 CDH5 NP_001786 cadherin 5, type 2 (vascular endothelium) M 90 8.45 specific CIKL F1N871 FLT4 NP_891555 fms-related tyrosine kinase 4 M 86 -1.71 CWT O73739 EDNRA NP_001948 endothelin receptor type A M 81 -8 CIKL O73739 EDNRA NP_001948 endothelin receptor type A M 81 -8 CWT Q4ADW2 PROCR NP_006395 protein C receptor, endothelial M 80 -0.36 CIKL Q4ADW2 PROCR NP_006395 protein C receptor, endothelial M 80 -0.36 CIKL F1NFQ9 TEK NP_000450 TEK tyrosine kinase, endothelial M 77 7.3 specific CWT Q9DGN6 ECE1 NP_001106819 endothelin converting enzyme 1 M 74 -0.31 CIKL Q9DGN6 ECE1 NP_001106819 endothelin converting enzyme 1 M 74 -0.31 CWT F1NIF0 CA9 NP_001207 carbonic anhydrase IX I 74 CIKL F1NIF0 CA9 NP_001207 carbonic anhydrase IX I 74 CWT E1BZU7 AOC3 NP_003725 amine oxidase, copper containing 3 (vascular adhesion protein M 70 1) CIKL E1BZU7 AOC3 NP_003725 amine oxidase, copper containing 3 (vascular adhesion protein M 70 1) CWT O93419 COL18A1 NP_569712 collagen, type XVIII, alpha 1 E 70 -2.13 CIKL O93419 -
Letters to Nature
letters to nature Received 7 July; accepted 21 September 1998. 26. Tronrud, D. E. Conjugate-direction minimization: an improved method for the re®nement of macromolecules. Acta Crystallogr. A 48, 912±916 (1992). 1. Dalbey, R. E., Lively, M. O., Bron, S. & van Dijl, J. M. The chemistry and enzymology of the type 1 27. Wolfe, P. B., Wickner, W. & Goodman, J. M. Sequence of the leader peptidase gene of Escherichia coli signal peptidases. Protein Sci. 6, 1129±1138 (1997). and the orientation of leader peptidase in the bacterial envelope. J. Biol. Chem. 258, 12073±12080 2. Kuo, D. W. et al. Escherichia coli leader peptidase: production of an active form lacking a requirement (1983). for detergent and development of peptide substrates. Arch. Biochem. Biophys. 303, 274±280 (1993). 28. Kraulis, P.G. Molscript: a program to produce both detailed and schematic plots of protein structures. 3. Tschantz, W. R. et al. Characterization of a soluble, catalytically active form of Escherichia coli leader J. Appl. Crystallogr. 24, 946±950 (1991). peptidase: requirement of detergent or phospholipid for optimal activity. Biochemistry 34, 3935±3941 29. Nicholls, A., Sharp, K. A. & Honig, B. Protein folding and association: insights from the interfacial and (1995). the thermodynamic properties of hydrocarbons. Proteins Struct. Funct. Genet. 11, 281±296 (1991). 4. Allsop, A. E. et al.inAnti-Infectives, Recent Advances in Chemistry and Structure-Activity Relationships 30. Meritt, E. A. & Bacon, D. J. Raster3D: photorealistic molecular graphics. Methods Enzymol. 277, 505± (eds Bently, P. H. & O'Hanlon, P. J.) 61±72 (R. Soc. Chem., Cambridge, 1997). -
The Microbiota-Produced N-Formyl Peptide Fmlf Promotes Obesity-Induced Glucose
Page 1 of 230 Diabetes Title: The microbiota-produced N-formyl peptide fMLF promotes obesity-induced glucose intolerance Joshua Wollam1, Matthew Riopel1, Yong-Jiang Xu1,2, Andrew M. F. Johnson1, Jachelle M. Ofrecio1, Wei Ying1, Dalila El Ouarrat1, Luisa S. Chan3, Andrew W. Han3, Nadir A. Mahmood3, Caitlin N. Ryan3, Yun Sok Lee1, Jeramie D. Watrous1,2, Mahendra D. Chordia4, Dongfeng Pan4, Mohit Jain1,2, Jerrold M. Olefsky1 * Affiliations: 1 Division of Endocrinology & Metabolism, Department of Medicine, University of California, San Diego, La Jolla, California, USA. 2 Department of Pharmacology, University of California, San Diego, La Jolla, California, USA. 3 Second Genome, Inc., South San Francisco, California, USA. 4 Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA, USA. * Correspondence to: 858-534-2230, [email protected] Word Count: 4749 Figures: 6 Supplemental Figures: 11 Supplemental Tables: 5 1 Diabetes Publish Ahead of Print, published online April 22, 2019 Diabetes Page 2 of 230 ABSTRACT The composition of the gastrointestinal (GI) microbiota and associated metabolites changes dramatically with diet and the development of obesity. Although many correlations have been described, specific mechanistic links between these changes and glucose homeostasis remain to be defined. Here we show that blood and intestinal levels of the microbiota-produced N-formyl peptide, formyl-methionyl-leucyl-phenylalanine (fMLF), are elevated in high fat diet (HFD)- induced obese mice. Genetic or pharmacological inhibition of the N-formyl peptide receptor Fpr1 leads to increased insulin levels and improved glucose tolerance, dependent upon glucagon- like peptide-1 (GLP-1). Obese Fpr1-knockout (Fpr1-KO) mice also display an altered microbiome, exemplifying the dynamic relationship between host metabolism and microbiota. -
Aconitase: to Be Or Not to Be Inside Plant Glyoxysomes, That Is the Question
biology Review Aconitase: To Be or not to Be Inside Plant Glyoxysomes, That Is the Question Luigi De Bellis 1,* , Andrea Luvisi 1 and Amedeo Alpi 2 1 Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Prov. le Monteroni, I-73100 Lecce, Italy; [email protected] 2 Approaching Research Educational Activities (A.R.E.A.) Foundation, I-56126 Pisa, Italy; [email protected] * Correspondence: [email protected] Received: 10 June 2020; Accepted: 10 July 2020; Published: 12 July 2020 Abstract: After the discovery in 1967 of plant glyoxysomes, aconitase, one the five enzymes involved in the glyoxylate cycle, was thought to be present in the organelles, and although this was found not to be the case around 25 years ago, it is still suggested in some textbooks and recent scientific articles. Genetic research (including the study of mutants and transcriptomic analysis) is becoming increasingly important in plant biology, so metabolic pathways must be presented correctly to avoid misinterpretation and the dissemination of bad science. The focus of our study is therefore aconitase, from its first localization inside the glyoxysomes to its relocation. We also examine data concerning the role of the enzyme malate dehydrogenase in the glyoxylate cycle and data of the expression of aconitase genes in Arabidopsis and other selected higher plants. We then propose a new model concerning the interaction between glyoxysomes, mitochondria and cytosol in cotyledons or endosperm during the germination of oil-rich seeds. Keywords: aconitase; malate dehydrogenase; glyoxylate cycle; glyoxysomes; peroxisomes; β-oxidation; gluconeogenesis 1. Introduction Glyoxysomes are specialized types of plant peroxisomes containing glyoxylate cycle enzymes, which participate in the conversion of lipids to sugar during the early stages of germination in oilseeds. -
Environmental Adaptability and Stress Tolerance of Laribacter
Lau et al. Cell & Bioscience 2011, 1:22 http://www.cellandbioscience.com/content/1/1/22 Cell & Bioscience RESEARCH Open Access Environmental adaptability and stress tolerance of Laribacter hongkongensis: a genome-wide analysis Susanna KP Lau1,2,3,4*†, Rachel YY Fan4*, Tom CC Ho4, Gilman KM Wong4, Alan KL Tsang4, Jade LL Teng4, Wenyang Chen5, Rory M Watt5, Shirly OT Curreem4, Herman Tse1,2,3,4, Kwok-Yung Yuen1,2,3,4 and Patrick CY Woo1,2,3,4† Abstract Background: Laribacter hongkongensis is associated with community-acquired gastroenteritis and traveler’s diarrhea and it can reside in human, fish, frogs and water. In this study, we performed an in-depth annotation of the genes in its genome related to adaptation to the various environmental niches. Results: L. hongkongensis possessed genes for DNA repair and recombination, basal transcription, alternative s-factors and 109 putative transcription factors, allowing DNA repair and global changes in gene expression in response to different environmental stresses. For acid stress, it possessed a urease gene cassette and two arc gene clusters. For alkaline stress, it possessed six CDSs for transporters of the monovalent cation/proton antiporter-2 and NhaC Na+:H+ antiporter families. For heavy metals acquisition and tolerance, it possessed CDSs for iron and nickel transport and efflux pumps for other metals. For temperature stress, it possessed genes related to chaperones and chaperonins, heat shock proteins and cold shock proteins. For osmotic stress, 25 CDSs were observed, mostly related to regulators for potassium ion, proline and glutamate transport. For oxidative and UV light stress, genes for oxidant-resistant dehydratase, superoxide scavenging, hydrogen peroxide scavenging, exclusion and export of redox-cycling antibiotics, redox balancing, DNA repair, reduction of disulfide bonds, limitation of iron availability and reduction of iron-sulfur clusters are present. -
Sequence Homology and Expression Profile of Genes Associated with DNA Repair Pathways in Mycobacterium Leprae
[Downloaded free from http://www.ijmyco.org on Wednesday, February 6, 2019, IP: 131.111.5.19] Original Article Sequence Homology and Expression Profile of Genes Associated with DNA Repair Pathways in Mycobacterium leprae Mukul Sharma1, Sundeep Chaitanya Vedithi2,3, Madhusmita Das3, Anindya Roy1, Mannam Ebenezer3 1Department of Biotechnology, Indian Institute of Technology, Hyderabad, Telangana, 2Schieffelin Institute of Health Research and Leprosy Center, Vellore, Tamil Nadu, India, 3Department of Biochemistry, University of Cambridge, Cambridge CB2 1GA, UK Abstract Background: Survival of Mycobacterium leprae, the causative bacteria for leprosy, in the human host is dependent to an extent on the ways in which its genome integrity is retained. DNA repair mechanisms protect bacterial DNA from damage induced by various stress factors. The current study is aimed at understanding the sequence and functional annotation of DNA repair genes in M. leprae. Methods: The genome of M. leprae was annotated using sequence alignment tools to identify DNA repair genes that have homologs in Mycobacterium tuberculosis and Escherichia coli. A set of 96 genes known to be involved in DNA repair mechanisms in E. coli and Mycobacteriaceae were chosen as a reference. Among these, 61 were identified in M. leprae based on sequence similarity and domain architecture. The 61 were classified into 36 characterized gene products (59%), 11 hypothetical proteins (18%), and 14 pseudogenes (23%). All these genes have homologs in M. tuberculosis and 49 (80.32%) in E. coli. A set of 12 genes which are absent in E. coli were present in M. leprae and in Mycobacteriaceae. These 61 genes were further investigated for their expression profiles in the whole transcriptome microarray data of M. -
Enforces in Vivo DNA Cloning of Escherichia Coli to Create
bioRxiv preprint doi: https://doi.org/10.1101/454074; this version posted October 26, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Exonuclease III (XthA) enforces in vivo DNA cloning of Escherichia coli to create 2 cohesive ends 3 4 Shingo Nozaki1 and Hironori Niki1, 2 5 6 1Microbial Physiology Laboratory, Department of Gene Function and Phenomics, 7 National Institute of Genetics, 1111, Yata, Mishima, Shizuoka, Japan 411-8540 8 9 2Department of Genetics, the Graduate University for Advanced Studies (SOKENDAI), 10 1111, Yata, Mishima, Shizuoka, Japan 411-8540 11 12 Corresponding author: Hironori Niki 13 [email protected] 14 055-981-6870 15 Microbial Physiology Laboratory, Department of Gene Function and Phenomics, 16 National Institute of Genetics, 1111, Yata, Mishima, Shizuoka, Japan 411-854 17 1 bioRxiv preprint doi: https://doi.org/10.1101/454074; this version posted October 26, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 18 Abstract 19 Escherichia coli has an ability to assemble DNA fragments with homologous 20 overlapping sequences of 15-40 bp at each end. Several modified protocols have already 21 been reported to improve this simple and useful DNA-cloning technology. However, the 22 molecular mechanism by which E. coli accomplishes such cloning is still unknown. In 23 this study, we provide evidence that the in vivo cloning of E. coli is independent of both 24 RecA and RecET recombinase, but is dependent on XthA, a 3’ to 5’ exonuclease.