Serologic Specificity of Antibodies to Ribonucleic Acid in Normal and Rheumatoid Arthritis Sera
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Functional Food Ingredients
B&H BIOTECHNOLOGY CO. 必致生物科技有限公司 TRADING DIVISION FUNCTIONAL FOOD INGREDIENTS www.bhbiotech.com B&H BIOTECHNOLOGY CO. 必致生物科技有限公司 TRADING DIVISION GREAT PRODUCT OPPORTUNITIES B&H Biotechnology Co., Ltd (Hong Kong) is an international trading company specializing in pharmaceutical products and functional food ingredients. We have more than 20 years of experience in international trading business and have customers in more than 30 countries. Quick response, best service and competitive prices have made us the preferred partner. FUNCTIONAL FOOD INGREDIENTS PRODUCT PORTFOLIO 5’- Nucleotide (NUC) products Fructose – 1,6-diphosphate (FDP) products Alpha-amylase inhibitor (wheat origin) Yeast RNA (Ribonucleic Acid) Casein Phosphopeptides, CPP Citicoline Sodium, CDPC S-Ademetionine, SAM Adenosine Monophophate, AMP Adenosine Cyclphosphate, cAMP Cytidine Monophosphate, CMP Feed Nucleotides Other food ingredients and supplements www.bhbiotech.com B&H BIOTECHNOLOGY CO. 必致生物科技有限公司 TRADING DIVISION 5’- NUCLEOTIDES AND FRUCTOSE-1,6-DIPHOSPHATE PRODUCTS B&H Biotechnology Co., Ltd provides high quality 5′-nucleotides, fructose-1,6- diphosphate salts and their derivatives from the most reliable manufactures. These products are widely used in pharmaceutical and food industries. Among them, 5'-nucleotides are particularly competitive owing to breakthroughs in the bio-catalysis, bio- process and separation technologies. All products have the certifications of HACCP, Halal and Kosher. These products have a strong market position in China, and are exported into EU, USA, South America , Australia and Middle-East. 5’-Nucleotide (NUC) products 5’-nucleotides are widely used in the pharmaceutical and food industries, especially as infant powder milk additives. They can improve the human immunity, enhance the ability of babies to resist bacillary dysentery and can reduce the incidence rate of diarrhea. -
Chapter 23 Nucleic Acids
7-9/99 Neuman Chapter 23 Chapter 23 Nucleic Acids from Organic Chemistry by Robert C. Neuman, Jr. Professor of Chemistry, emeritus University of California, Riverside [email protected] <http://web.chem.ucsb.edu/~neuman/orgchembyneuman/> Chapter Outline of the Book ************************************************************************************** I. Foundations 1. Organic Molecules and Chemical Bonding 2. Alkanes and Cycloalkanes 3. Haloalkanes, Alcohols, Ethers, and Amines 4. Stereochemistry 5. Organic Spectrometry II. Reactions, Mechanisms, Multiple Bonds 6. Organic Reactions *(Not yet Posted) 7. Reactions of Haloalkanes, Alcohols, and Amines. Nucleophilic Substitution 8. Alkenes and Alkynes 9. Formation of Alkenes and Alkynes. Elimination Reactions 10. Alkenes and Alkynes. Addition Reactions 11. Free Radical Addition and Substitution Reactions III. Conjugation, Electronic Effects, Carbonyl Groups 12. Conjugated and Aromatic Molecules 13. Carbonyl Compounds. Ketones, Aldehydes, and Carboxylic Acids 14. Substituent Effects 15. Carbonyl Compounds. Esters, Amides, and Related Molecules IV. Carbonyl and Pericyclic Reactions and Mechanisms 16. Carbonyl Compounds. Addition and Substitution Reactions 17. Oxidation and Reduction Reactions 18. Reactions of Enolate Ions and Enols 19. Cyclization and Pericyclic Reactions *(Not yet Posted) V. Bioorganic Compounds 20. Carbohydrates 21. Lipids 22. Peptides, Proteins, and α−Amino Acids 23. Nucleic Acids ************************************************************************************** -
Inhibition by Cyclic Guanosine 3':5'-Monophosphate of the Soluble DNA Polymerase Activity, and of Partially Purified DNA Polymer
Inhibition by Cyclic Guanosine 3':5'-Monophosphate of the Soluble DNA Polymerase Activity, and of Partially Purified DNA Polymerase A (DNA Polymerase I) from the Yeast Saccharomyces cere visiae Hans Eckstein Institut für Physiologische Chemie der Universität, Martinistr. 52-UKE, D-2000 Hamburg 20 Z. Naturforsch. 36 c, 813-819 (1981); received April 16/July 2, 1981 Dedicated to Professor Dr. Joachim Kühnauon the Occasion of His 80th Birthday cGMP, DNA Polymerase Activity, DNA Polymerase A, DNA Polymerase I, Baker’s Yeast DNA polymerase activity from extracts of growing yeast cells is inhibited by cGMP. Experiments with partially purified yeast DNA polymerases show, that cGMP inhibits DNA polymerase A (DNA polymerase I from Chang), which is the main component of the soluble DNA polymerase activity in yeast extracts, by competing for the enzyme with the primer- template DNA. Since the enzyme is not only inhibited by 3',5'-cGMP, but also by 3',5'-cAMP, the 3': 5'-phosphodiester seems to be crucial for the competition between cGMP and primer. This would be inconsistent with the concept of a 3'-OH primer binding site in the enzyme. The existence of such a site in the yeast DNA polymerase A is indicated from studies with various purine nucleoside monophosphates. When various DNA polymerases are compared, inhibition by cGMP seems to be restricted to those enzymes, which are involved in DNA replication. DNA polymerases with an associated nuclease activity are not inhibited, DNA polymerase B from yeast is even activated by cGMP. Though some relations between the cGMP effect and the presumed function of the enzymes in the living cell are apparent, the biological meaning of the observations in general remains open. -
Nucleotide Metabolism 22
Nucleotide Metabolism 22 For additional ancillary materials related to this chapter, please visit thePoint. I. OVERVIEW Ribonucleoside and deoxyribonucleoside phosphates (nucleotides) are essential for all cells. Without them, neither ribonucleic acid (RNA) nor deoxyribonucleic acid (DNA) can be produced, and, therefore, proteins cannot be synthesized or cells proliferate. Nucleotides also serve as carriers of activated intermediates in the synthesis of some carbohydrates, lipids, and conjugated proteins (for example, uridine diphosphate [UDP]-glucose and cytidine diphosphate [CDP]- choline) and are structural components of several essential coenzymes, such as coenzyme A, flavin adenine dinucleotide (FAD[H2]), nicotinamide adenine dinucleotide (NAD[H]), and nicotinamide adenine dinucleotide phosphate (NADP[H]). Nucleotides, such as cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP), serve as second messengers in signal transduction pathways. In addition, nucleotides play an important role as energy sources in the cell. Finally, nucleotides are important regulatory compounds for many of the pathways of intermediary metabolism, inhibiting or activating key enzymes. The purine and pyrimidine bases found in nucleotides can be synthesized de novo or can be obtained through salvage pathways that allow the reuse of the preformed bases resulting from normal cell turnover. [Note: Little of the purines and pyrimidines supplied by diet is utilized and is degraded instead.] II. STRUCTURE Nucleotides are composed of a nitrogenous base; a pentose monosaccharide; and one, two, or three phosphate groups. The nitrogen-containing bases belong to two families of compounds: the purines and the pyrimidines. A. Purine and pyrimidine bases Both DNA and RNA contain the same purine bases: adenine (A) and guanine (G). -
Unless Otherwise Noted, the Content of This Course Material Is Licensed Under a Creative Commons Attribution – Share Alike 3.0 License
Unless otherwise noted, the content of this course material is licensed under a Creative Commons Attribution – Share Alike 3.0 License. Copyright 2007, Robert Lyons. The following information is intended to inform and educate and is not a tool for self-diagnosis or a replacement for medical evaluation, advice, diagnosis or treatment by a healthcare professional. You should speak to your physician or make an appointment to be seen if you have questions or concerns about this information or your medical condition. You assume all responsibility for use and potential liability associated with any use of the material. Material contains copyrighted content, used in accordance with U.S. law. Copyright holders of content included in this material should contact [email protected] with any questions, corrections, or clarifications regarding the use of content. The Regents of the University of Michigan do not license the use of third party content posted to this site unless such a license is specifically granted in connection with particular content objects. Users of content are responsible for their compliance with applicable law. Mention of specific products in this recording solely represents the opinion of the speaker and does not represent an endorsement by the University of Michigan. Viewer discretion advised: Material may contain medical images that may be disturbing to some viewers. Formation of PRPP: Phosphoribose pyrophosphate PRPP Use in Purine Biosynthesis: The First Purine: Inosine Monophosphate (folates are involved in this synthesis) Conversion to Adenosine: Conversion to Guanosine: Nucleoside Monophosphate Kinases AMP + ATP <--> 2ADP (adenylate kinase) GMP + ATP <---> GDP + ADP (guanylate kinase) • similar enzymes specific for each nucleotide • no specificity for ribonucleotide vs. -
Questions with Answers- Nucleotides & Nucleic Acids A. the Components
Questions with Answers- Nucleotides & Nucleic Acids A. The components and structures of common nucleotides are compared. (Questions 1-5) 1._____ Which structural feature is shared by both uracil and thymine? a) Both contain two keto groups. b) Both contain one methyl group. c) Both contain a five-membered ring. d) Both contain three nitrogen atoms. 2._____ Which component is found in both adenosine and deoxycytidine? a) Both contain a pyranose. b) Both contain a 1,1’-N-glycosidic bond. c) Both contain a pyrimidine. d) Both contain a 3’-OH group. 3._____ Which property is shared by both GDP and AMP? a) Both contain the same charge at neutral pH. b) Both contain the same number of phosphate groups. c) Both contain the same purine. d) Both contain the same furanose. 4._____ Which characteristic is shared by purines and pyrimidines? a) Both contain two heterocyclic rings with aromatic character. b) Both can form multiple non-covalent hydrogen bonds. c) Both exist in planar configurations with a hemiacetal linkage. d) Both exist as neutral zwitterions under cellular conditions. 5._____ Which property is found in nucleosides and nucleotides? a) Both contain a nitrogenous base, a pentose, and at least one phosphate group. b) Both contain a covalent phosphodister bond that is broken in strong acid. c) Both contain an anomeric carbon atom that is part of a β-N-glycosidic bond. d) Both contain an aldose with hydroxyl groups that can tautomerize. ___________________________________________________________________________ B. The structures of nucleotides and their components are studied. (Questions 6-10) 6._____ Which characteristic is shared by both adenine and cytosine? a) Both contain one methyl group. -
High-Throughput Profiling of Nucleotides and Nucleotide Sugars
Journal of Biotechnology 229 (2016) 3–12 Contents lists available at ScienceDirect Journal of Biotechnology j ournal homepage: www.elsevier.com/locate/jbiotec High-throughput profiling of nucleotides and nucleotide sugars to evaluate their impact on antibody N-glycosylation a,1 b,1 a c Thomas K. Villiger , Robert F. Steinhoff , Marija Ivarsson , Thomas Solacroup , c c b b b Matthieu Stettler , Hervé Broly , Jasmin Krismer , Martin Pabst , Renato Zenobi , a a,d,∗ Massimo Morbidelli , Miroslav Soos a Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH- 8093 Zurich, Switzerland b Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland c Merck Serono SA, Corsier-sur-Vevey, Biotech Process Sciences, ZI B, CH-1809 Fenil-sur-Corsier, Switzerland d Department of Chemical Engineering, University of Chemistry and Technology, Technicka 5, 166 28 Prague, Czech Republic a r t i c l e i n f o a b s t r a c t Article history: Recent advances in miniaturized cell culture systems have facilitated the screening of media additives on Received 5 October 2015 productivity and protein quality attributes of mammalian cell cultures. However, intracellular compo- Received in revised form 16 April 2016 nents are not routinely measured due to the limited throughput of available analytical techniques. In this Accepted 20 April 2016 work, time profiling of intracellular nucleotides and nucleotide sugars of CHO-S cell fed-batch processes Available online 27 April 2016 in a micro-scale bioreactor system was carried out using a recently developed high-throughput method based on matrix-assisted laser desorption/ionization (MALDI) time-of-flight mass spectrometry (TOF- Keywords: MS). -
UC San Diego UC San Diego Electronic Theses and Dissertations
UC San Diego UC San Diego Electronic Theses and Dissertations Title On the origin of the canonical nucleobases : selection pressures and hydrolytic stabilities of N-glycosyl bonds Permalink https://escholarship.org/uc/item/0bx9p84v Author Rios, Andro C. Publication Date 2012 Peer reviewed|Thesis/dissertation eScholarship.org Powered by the California Digital Library University of California UNIVERSITY OF CALIFORNIA, SAN DIEGO On the origin of the canonical nucleobases: selection pressures and hydrolytic stabilities of N-glycosyl bonds A dissertation submitted in partial satisfaction of the requirements for the degree Doctor of Philosophy in Chemistry by Andro C. Rios Committee in Charge: Professor Yitzhak Tor, Chair Professor Jeffrey Bada Professor Stanley Opella Professor Emmanuel Theodorakis Professor Jerry Yang 2012 Copyright Andro C. Rios, 2012 All rights reserved. The Dissertation of Andro C. Rios is approved, and it is acceptable in quality and form for publication on microfilm and electronically: Chair University of California, San Diego 2012 iii DEDICATION To the memories of Leslie E. Orgel (1927–2007) and Stanley L. Miller (1930–2007). It is because of their work in the field of prebiotic and origin of life chemistry that I was inspired to pursue a career in chemistry. And especially to Professor Orgel, thank you for your inspiration and encouragement . iv TABLE OF CONTENTS Signature Page .......................................................................................................... iii Dedication ................................................................................................................. -
Chem 109 C Bioorganic Compounds
Chem 109 C Bioorganic Compounds Fall 2019 HFH1104 Armen Zakarian Office: Chemistry Bldn 2217 http://labs.chem.ucsb.edu/~zakariangroup/courses.html CLAS Instructor: Dhillon Bhavan [email protected] Midterm 3 stats Average 49.1 St Dev 14.1 Max 87.5 Min 15 test are available outside room 2135 (Chemistry, 2nd floor) in a box, sorted in alphabetical order, by color Final Course Grading Each test will be curved individually to 75% average Lowest midterm will be dropped Scores from 2 best M and the Final will be added Grades will be assigned according to the syllabus 22. Draw all reactions required to convert hexanoic acid to 3 molecules of acetyl CoA through 11 pt the β-oxidation cycles. Name all necessary coenzymes and enzymes. How many molecules of ATP and CO2 will be produced from hexanoic acid after its entire metabolism through all 4 stages ? O O hexanoic acid (hexanoate) Overview OVERVIEW o structures of DNA vs. RNA - ribose o structures of bases: Adenine, Uracil/Thymine, Guanine, Cytosine. “Enol forms” o hydrogen bonding between A-T(U) and G-C. H-donors/acceptors o Base complementarity o RNA strand cleavage assisted by the 2’-OH group in the ribose unit (cyclic PDE) o Deamination: RNA genetic instability o DNA replication o RNA synthesis: transcription. Template strand (read 3’ to 5’). Sense strand and the RNA primary structure (T −> U). o Protein synthesis: translation. mRNA determines the amino acid sequence. tRNAs are amino acid carriers. rRNA - part of ribosomes o no section 26.12, 26.13 DNA, RNA, etc. -
Modeling of the Hydration Shell of Uracil and Thymine
Int. J. Mol. Sci. 2000, 1, 17-27 International Journal of Molecular Sciences ISSN 1422-0067 www.mdpi.org/ijms/ Modeling of the Hydration Shell of Uracil and Thymine Oleg V. Shishkin1,2, Leonid Gorb2 and Jerzy Leszczynski2* 1Department of Alkali Halide Crystals, Institute for Single Crystals, National Academy of Sciences of Ukraine, 60 Lenina Avenue., Kharkiv 310001, Ukraine 2Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, P.O. Box 17910, 1325 Lynch Street, Jackson, MS 39217, USA E-mail: [email protected] *Author to whom correspondence should be addressed. Received: 4 January 2000 / Accepted: 30 March 2000 / Published: 4 March 2000 Abstract: The molecular geometry of complexes of uracil and thymine with 11 water mole- cules was calculated using the density functional theory with the B3LYP functional. The standard 6-31G(d) basis set has been employed. It was found that the arrangement of water molecules forming a locked chain around the nucleobases significantly differs for uracil and thymine. The presence of a methyl group in thymine results in strong non-planarity of the hydrated shell. The existence of C-H...O hydrogen bonds between the water molecules and the hydrophobic part of the nucleobases is established. Interactions with water molecules cause some changes in the geometry of uracil and thymine which can be explained by the contribution of a zwitter-ionic dihydroxy resonance form into the total structure of the molecules. Keywords: Uracil, Thymine, Hydration, Molecular structure, Hydrogen bonds, Density functional theory. Introduction Since Franklin and Gosling [1] examined the first fibers of DNA it has been known that DNA oc- curs in vivo in the hydrated form. -
Recent Progress Toward the Templated Synthesis and Directed Evolution of Sequence-Defined Synthetic Polymers
Recent Progress Toward the Templated Synthesis and Directed Evolution of Sequence-Defined Synthetic Polymers The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters Citation Brudno, Yevgeny, and David R. Liu. 2009. Recent progress toward the templated synthesis and directed evolution of sequence-defined synthetic polymers. Chemistry and Biology 16, no. 3: 265-276. Published Version http://dx.doi.org/10.1016/j.chembiol.2009.02.004 Citable link http://nrs.harvard.edu/urn-3:HUL.InstRepos:2958222 Terms of Use This article was downloaded from Harvard University’s DASH repository, and is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http:// nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of- use#OAP Brudno and Liu page 1 Recent Progress Towards the Templated Synthesis and Directed Evolution of Sequence-Defined Synthetic Polymers Yevgeny Brudno and David R. Liu* *Department of Chemistry and Chemical Biology and the Howard Hughes Medical Institute 12 Oxford Street Harvard University Cambridge, MA 02138 E-mail: [email protected] Brudno and Liu page 2 Abstract Biological polymers such as nucleic acids and proteins are ubiquitous in living systems, but their ability to address problems beyond those found in nature is constrained by factors such as chemical or biological instability, limited building-block functionality, bioavailability, and immunogenicity. In principle, sequence-defined synthetic polymers based on non-biological monomers and backbones might overcome these constraints; however, identifying the sequence of a synthetic polymer that possesses a specific desired functional property remains a major challenge. -
Unnatural Amino Acid Incorporation in E. Coli: Current and Future Applications in the Design of Therapeutic Proteins
REVIEW ARTICLE published: 01 April 2014 doi: 10.3389/fchem.2014.00015 Unnatural amino acid incorporation in E. coli: current and future applications in the design of therapeutic proteins Kim Wals and Huib Ovaa* Division of Cell Biology, Chemical Biology and Drug Innovation, The Netherlands Cancer Institute, Amsterdam, Netherlands Edited by: Unnatural amino acid (UAA) incorporation by amber codon suppression offers scientists Youla S. Tsantrizos, McGill a powerful tool to modify the properties of proteins at will. UAA incorporation has University, Canada been used for a plethora of fundamental research applications and, more recently, Reviewed by: also for the selective modification of therapeutic proteins. In this review most recent Minkui Luo, Fudan University, China John F.Honek, University of developments in Escherichia coli codon expansion and, unnatural amino acid incorporation Waterloo, Canada are discussed together with some remarkable recent developments in improved efficient Martin Schmeing, McGill University, UAA incorporation. We focus on the generation of proteins that hold promise for future Canada therapeutic applications that would be impossible to obtain without unnatural amino *Correspondence: acid incorporation, including the generation of bi-specific antibodies and antibody drug Huib Ovaa, Division of Cell Biology, The Netherlands Cancer Institute, conjugates. Plesmanlaan 121, 1066CX, Keywords: unnatural amino acid incorporation, Escherichia coli, amber codon suppression, release factor 1, Amsterdam, Netherlands therapeutic proteins, antibody conjugates, chemical protein modifications e-mail: [email protected] INTRODUCING MODIFICATIONS IN Escherichia. coli protein modifications. If, for example, glycosylation of a recom- PRODUCED PROTEINS binant protein is required, specialized E. coli strains can be used E. coli is the protein production workhorse of many scientists as E.