Desmosine and Isodesmosine of Elastin
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Pyrylium Salt Chemistry Emerging As a Powerful Approach for the Cite This: Chem
Chemical Science View Article Online PERSPECTIVE View Journal | View Issue Over one century after discovery: pyrylium salt chemistry emerging as a powerful approach for the Cite this: Chem. Sci., 2020, 11, 12249 All publication charges for this article construction of complex macrocycles and metallo- have been paid for by the Royal Society of Chemistry supramolecules Yiming Li, ab Heng Wanga and Xiaopeng Li *a Over one century after its discovery, pyrylium salt chemistry has been extensively applied in preparing light emitters, photocatalysts, and sensitizers. In most of these studies, pyrylium salts acted as versatile precursors for the preparation of small molecules (such as furan, pyridines, phosphines, pyridinium salts, thiopyryliums and betaine dyes) and poly(pyridinium salt)s. In recent decades, pyrylium salt chemistry has emerged as a powerful approach for constructing complex macrocycles and metallo-supramolecules. In this perspective, we attempt to summarize the representative efforts of synthesizing and self-assembling Received 20th August 2020 large, complex architectures using pyrylium salt chemistry. We believe that this perspective not only Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Accepted 13th October 2020 highlights the recent achievements in pyrylium salt chemistry, but also inspires us to revisit this chemistry DOI: 10.1039/d0sc04585c to design and construct macrocycles and metallo-supramolecules with increasing complexity and rsc.li/chemical-science desired function. 1. Introduction pyrylium salt with perchlorate as the counterion was reported in 1911 by Baeyer;7 however, since the discovery of pyrylium salts, Pyrylium salts are a type of six-membered cationic heterocycles such salts have been underappreciated for about a half-century. -
Collagen and Elastin Fibres
J Clin Pathol: first published as 10.1136/jcp.s3-12.1.49 on 1 January 1978. Downloaded from J. clin. Path., 31, Suppl. (Roy. Coll. Path.), 12, 49-58 Collagen and elastin fibres A. J. BAILEY From the Agricultural Research Council, Meat Research Institute, Langford, Bristol Although an understanding of the intracellular native collagen was generated from type I pro- biosynthesis of both collagen and elastin is of collagen. Whether this means that the two pro- considerable importance it is the subsequent extra- collagens are converted by different enzyme systems cellular changes involving fibrogenesis and cross- and the type III enzyme was deficient in these linking that ensure that these proteins ultimately fibroblast cultures, or that the processing of pro become the major supporting tissues of the body. type III is extremely slow, is not known. The latter This paper summarises the formation and stability proposal is consistent with the higher proportion of collagen and elastin fibres. of soluble pro type III extractable from tissue (Lenaers and Lapiere, 1975; Timpl et al., 1975). Collagen Basement membrane collagens, on the other hand, do not form fibres and this property may be The non-helical regions at the ends of the triple due to the retention of the non-helical extension helix of procollagen probably provide a number of peptides (Kefalides, 1973). In-vivo biosynthetic different intracellular functions-that is, initiating studies showing the absence of any extension peptide rapid formation of the triple helix; inhibiting intra- removal support this (Minor et al., 1976), but other cellular fibrillogenesis; and facilitating transmem- workers have reported that there is some cleavage brane movement. -
01. Amino Acids
01. Amino Acids 1 Biomolecules • Protein • Carbohydrate • Nucleic acid • Lipid 2 peptide polypeptide protein di-, tri-, oligo- 3 4 fibrous proteins proteins globular proteins 5 Figure 4.1 Anatomy of an amino acid. Except for proline and its derivatives, all of the amino acids commonly found in proteins possess this type of structure. 6 Glycine (Gly, G) Alanine (Ala, A) Valine (Val, V)* Leucine (Leu, L)* Isoleucine (Ile. I)* 7 Serine (Ser, S) Threonine (Thr, T)* Cysteine (Cys, C)cystine Methionine (Met, M)* 8 Aspartate (Asp, D) Glutamate (Glu, E) Asparagine (Asn, N) Glutamine (Gln, Q) 9 Lysine (Lys, K)* Arginine (Arg, R)* 10 Phenylalanine (Phe, F)* Tyrosine (Tyr, Y) Histidine (His, H)* Tryptophan (Trp, W)* 11 Proline (Pro, P) 12 Hydrophobic (A, G, I, L, F, V, P) Hydrophilic (D, E, R, S, T, C, N, Q, H) Amphipathic (K, M, W, Y) 13 Essential amino acids: V, L, I, T, M, K, R, F, H, W 14 Several Amino Acids Occur Rarely in Proteins We'll see some of these in later chapters • Selenocysteine in many organisms • Pyrrolysine in several archaeal species • Hydroxylysine, hydroxyproline - collagen • Carboxyglutamate - blood-clotting proteins • Pyroglutamate – in bacteriorhodopsin • GABA, epinephrine, histamine, serotonin act as neurotransmitters and hormones • Phosphorylated amino acids – a signaling device Several Amino Acids Occur Rarely in Proteins Several Amino Acids Occur Rarely in Proteins Figure 4.4 (b) Some amino acids are less common, but nevertheless found in certain proteins. Hydroxylysine and hydroxyproline are found in connective-tissue proteins; carboxy- glutamate is found in blood-clotting proteins; pyroglutamate is found in bacteriorhodopsin (see Chapter 9). -
Collagen Structural Microheterogeneity and a Possible Role for Glycosylated Hydroxylysine in Type 1 Collagen
Proc. NatL Acad. Sci. USA Vol. 79, pp. 7684-7688, December 1982 Biochemistry Collagen structural microheterogeneity and a possible role for glycosylated hydroxylysine in type 1 collagen (nonreducible stable crosslinks/hydroxyaldolhistidine/specific cleavage/molecular location) MITSUO YAMAUCHI*t, CLAUDIA NOYES*t, YOSHINORI KUBOKI*t, AND GERALD L. MECHANIC*§¶ *Dental Research Center, §Department of Biochemistry and Nutrition, and tDepartment of Medicine, University of North Carolina, Chapel Hill, North Carolina 27514 Communicated by. Ernest L. Eliel, September 20, 1982 ABSTRACT A three-chained peptide from type I collagen, and Mechanic (8) that dehydro-HisOHMerDes, which was crosslinked by hydroxyaldolhistidine, has been isolated from a thought to be artifactual (9, 10) is a true crosslink in collagen tryptic digest of5 M guanidine HCI-insoluble bovine skin collagen fibrils. Bernstein and Mechanic found that one HisOHMerDes (a small but as yet unknown percentage of the total collagen in crosslink was present per molecule of collagen in freshly re- whole skin). Os04/NaIO4 specifically cleaved the crosslink at its constituted soluble collagen fibrils. double bond into a two-chained crosslink peptide and a single pep- Histidine was also found to be a constituent of the stable tide. The sequence of the two-chained peptide containing the bi- nonreducible trifunctional crosslink hydroxyaldolhistidine functional crosslink was determined after amino acid analysis of (OHAlHis), whose structure was elucidated by PMR and mass the separated peptides. The crosslink consists of an aldehyde de- spectrometry rived from hydroxylysine-87 in the aldehyde-containing cyanogen (11). OHAIHis was isolated from bovine skin col- bromide fragment alCB5ald and an aldehyde derived from the lagen. -
United States Patent (19) 11 Patent Number: 5,874,589 Campbell Et Al
USOO5874589A United States Patent (19) 11 Patent Number: 5,874,589 Campbell et al. 45) Date of Patent: Feb. 23, 1999 54 METHODS FOR SYNTHESIZING DIVERSE El Marini et al., 1992, Synthesis pp. 1104-1108 Synthesis of COLLECTIONS OF TETRAMIC ACIDS AND enantiomerically pure B-and Y-amino acids from aspartic DERVATIVES THEREOF and glutamic acid derivatives. Evans et al., 1982, J. Amer. Chem. Soc. 104: 1737–1739 75 Inventors: David A. Campbell, San Mateo; Todd Asymmetric alkylation reactions of chiral imide enolates. A T. Romoff, San Jose, both of Calif. practical approach to the enantioselective Synthesis of C-Substituted carboxylic acid derivatives. 73 Assignee: GlaxoWellcome, Inc., Research Fontenot et al., 1991, Peptide Research, 4: 19-25A Survey Triangle Park, N.C. of potential problems and qulaity control in peptide Synthe sis by the flourenylmethocvarbonyl procedure. 21 Appl. No.: 896,799 Giesemann et al., 1982, J. Chem. Res. (S) pp. 79 Synthesis 22 Filed: Jul.18, 1997 of chiral C-isocyano esters and other base-Sensitive isocya nides with 51) Int. Cl. ........................ C07D 211/40; CO7D 207/00 oxomethylenebis-(3H-Imidazolium)Bis(methanesulphonate), 52 U.S. Cl. ............ ... 548/540; 546/220; 548/539 a versatile dehydrating reagent. 58 Field of Search ............................. 546/220; 548/539, Geysen et al., 1987, J. Immunol. Meth. 102: 259-274 548/540 Strategies for epitope analysis using peptide Synthesis. Giron-Forest et al., 1979, Analytical Profiles of Drug Sub 56) References Cited stances, 8: 47-81 Bromocriptine methaneSulphonate. U.S. PATENT DOCUMENTS Gokeletal, 1971, Isonitrile Chemistry, Ugi, I. ed., Academic 3,299.095 1/1967 Harris et al. -
Synthetic Polynucleotides Synthetische Polynukleotide Polynucleotides Synthetiques
Europäisches Patentamt *EP000960192B1* (19) European Patent Office Office européen des brevets (11) EP 0 960 192 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.7: C12N 9/02, C12N 15/53, of the grant of the patent: A61K 38/43, C12N 9/06 09.11.2005 Bulletin 2005/45 (86) International application number: (21) Application number: 97933592.4 PCT/AU1997/000505 (22) Date of filing: 11.08.1997 (87) International publication number: WO 1998/006830 (19.02.1998 Gazette 1998/07) (54) SYNTHETIC POLYNUCLEOTIDES SYNTHETISCHE POLYNUKLEOTIDE POLYNUCLEOTIDES SYNTHETIQUES (84) Designated Contracting States: • SHARP P M ET AL: "The codon Adaptation AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC Index--a measure of directional synonymous NL PT SE codon usage bias, and its potential applications." NUCLEIC ACIDS RESEARCH. (30) Priority: 09.08.1996 AU PO156596 ENGLAND 11 FEB 1987, vol. 15, no. 3, 11 February 1987 (1987-02-11), pages 1281-1295, (43) Date of publication of application: XP001122356 ISSN: 0305-1048 01.12.1999 Bulletin 1999/48 • DATABASE SWISSPROT [Online] 1 December 1992 (1992-12-01) MARIANI T.J. ET AL.: (60) Divisional application: "Protein-lysine 6-oxidase precursor (EC 05000327.6 1.4.3.13) (Lysyl oxidase)." Database accession no. P28300 XP002229125 (73) Proprietor: THE UNIVERSITY OF SYDNEY • DATABASE EMBL [Online] EBI; 16 May 1992 Sydney, New South Wales 2006 (AU) (1992-05-16) MARIANI T.J. ET AL.: "Human lysyl oxidase (LOX) mRNA, complete cds." Database (72) Inventor: WEISS, Anthony, Steven accession no. M94054 XP002229126 Randwick, NSW 2031 (AU) • DATABASE EMBL [Online] EBI; 26 November 1993 (1993-11-26) HAMALAINEN E.R. -
From Pyrylium to Pyridinium Salts: Understanding Physicochemical Features
From Pyrylium to Pyridinium Salts: Understanding Physicochemical Features Antonio Franconetti, Lidia Contreras-Bernal and Francisca Cabrera-Escribano Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado de Correos No. 1203, 41071 Sevilla, Spain. Fax: +34954624960; Tel: +34954556868; E-mail: [email protected] Abstract It is known that physical properties of pyridinium salts can be modulated by their chemical characteristics. Owing to their broad range of applications in biology, biotechnology and chemical research, the design and synthesis of a series of 2,4,6-tri- arylpyridinium salts with modified structural backbone have been carried out. The main strands of work have included modifications on pyrylium cation and nature of amines used as precursors. For pyrylium moiety electronic and steric changes in ortho and para positions were performed. The steric influence of the neighbouring groups into the amine reactivity and the changes of the nucleophile strength of this function have also been investigated. Thus, we have analyzed all these aspects to understand the chemical reactivity and seeking further applications. Keywords Pyridinium salts; Pyrylium salts; Amines; Carbohydrates Introduction Pyridinium salts are widely applied as synthetic building blocks to obtain substituted pyridine, dihydropyridine or piperidine. This synthetic strategy has been described for different applications such as total synthesis of Geissoschizine,1 cannabisativine, Lepadin B, among others. Pyridinium salts have been also used to achieve asymmetric and regioselective synthesis by additions of Grignard reagents.2 Furthermore, pyridinium salts have been applied as acylating agents, phase transfer catalyst or ionic liquid and dyes as a result of its intrinsic fluorescence. More recently, bispyridinium moieties have been employed in a tandem cyclization for the synthesis of indolizine derivatives.3 Different methods are available for the synthesis of pyridinium salts depending on the symmetry around of cation. -
Recent Applications of Isatin in the Synthesis of Organic Compounds
The Free Internet Journal Review for Organic Chemistry Archive for Arkivoc 2017, part i, 148-201 Organic Chemistry Recent applications of isatin in the synthesis of organic compounds Razieh Moradi,a Ghodsi Mohammadi Ziarani,*a and Negar Lashgari b a Department of Chemistry, Alzahra University, Tehran, Iran b School of Chemistry, College of Science, University of Tehran, Tehran, Iran E-mail: [email protected] [email protected] Received 12-06-2016 Accepted 02-25-2017 Published on line 04-10-2017 Abstract Isatin has been used in design and synthesis of diverse types of heterocyclic and carbocyclic compounds and considered as a valuable building block in organic synthesis. There is a diversity of multicomponent reactions of this useful reagent. This article aims to review the advances in the use of isatin as starting material in the synthesis of various organic compounds and drugs up to June 2016. Keywords: Isatin, organic compounds, heterocyclic compounds, carbocyclic compounds DOI: https://doi.org/10.24820/ark.5550190.p009.980 Page 148 ©ARKAT USA, Inc Arkivoc 2017, i, 148-201 Moradi, R. et al. Table of Contents 1. Introduction 2. Reactions at the C-3 Position of Isatin 3. Synthesis of Isatin-based Spiro-fused Heterocyclic Frameworks 3.1 Synthesis involving two-component reactions of isatins 3.1.1 Three-membered heterocycles 3.1.2 Five-membered heterocycles 3.1.3 Six-membered heterocycles 3.1.4 Seven-membered heterocycles 4. Synthesis Involving Multicomponent Reactions 4.1 Three-membered heterocycles 4.2 Five-membered heterocycles 4.3 Six-membered heterocycles 4.4 Seven-membered heterocycles 5. -
Ihyd-Pseaac: Predicting Hydroxyproline and Hydroxylysine in Proteins by Incorporating Dipeptide Position-Specific Propensity Into Pseudo Amino Acid Composition
Int. J. Mol. Sci. 2014, 15, 7594-7610; doi:10.3390/ijms15057594 OPEN ACCESS International Journal of Molecular Sciences ISSN 1422-0067 www.mdpi.com/journal/ijms Article iHyd-PseAAC: Predicting Hydroxyproline and Hydroxylysine in Proteins by Incorporating Dipeptide Position-Specific Propensity into Pseudo Amino Acid Composition Yan Xu 1,5,*, Xin Wen 1, Xiao-Jian Shao 2, Nai-Yang Deng 3 and Kuo-Chen Chou 4,5 1 Department of Information and Computer Science, University of Science and Technology Beijing, Beijing 100083, China; E-Mail: [email protected] 2 Department of Mathematics and Information Science, Binzhou University, Binzhou 256603, China; E-Mail: [email protected] 3 College of Science, China Agricultural University, Beijing 100083, China; E-Mail: [email protected] 4 Center of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, Jeddah 21589, Saudi Arabia; E-Mail: [email protected] 5 Gordon Life Science Institute, Boston, MA 02478, USA * Author to whom correspondence should be addressed; E-Mail: [email protected] or [email protected]; Tel./Fax: +86-10-6233-2589. Received: 7 February 2014; in revised form: 4 April 2014 / Accepted: 17 April 2014 / Published: 5 May 2014 Abstract: Post-translational modifications (PTMs) play crucial roles in various cell functions and biological processes. Protein hydroxylation is one type of PTM that usually occurs at the sites of proline and lysine. Given an uncharacterized protein sequence, which site of its Pro (or Lys) can be hydroxylated and which site cannot? This is a challenging problem, not only for in-depth understanding of the hydroxylation mechanism, but also for drug development, because protein hydroxylation is closely relevant to major diseases, such as stomach and lung cancers. -
Novel Derivatives of Nicotinamide Adenine Dinucleotide (NAD) and Their Biological Evaluation Against NAD- Consuming Enzymes
Novel derivatives of nicotinamide adenine dinucleotide (NAD) and their biological evaluation against NAD- Consuming Enzymes Giulia Pergolizzi University of East Anglia School of Pharmacy Thesis submitted for the degree of Doctor of Philosophy July, 2012 © This copy of the thesis has been supplied on condition that anyone who consults it is understood to recognise that its copyright rests with the author and that use of any information derived there from must be in accordance with current UK Copyright Law. In addition, any quotation or extract must include full attribution. ABSTRACT Nicotinamide adenine dinucleotide (β-NAD+) is a primary metabolite involved in fundamental biological processes. Its molecular structure with characteristic functional groups, such as the quaternary nitrogen of the nicotinamide ring, and the two high- energy pyrophosphate and nicotinamide N-glycosidic bonds, allows it to undergo different reactions depending on the reactive moiety. Well known as a redox substrate owing to the redox properties of the nicotinamide ring, β-NAD+ is also fundamental as a substrate of NAD+-consuming enzymes that cleave either high-energy bonds to catalyse their reactions. In this study, a panel of novel adenine-modified NAD+ derivatives was synthesized and biologically evaluated against different NAD+-consuming enzymes. The synthesis of NAD+ derivatives, modified in position 2, 6 or 8 of the adenine ring with aryl/heteroaryl groups, was accomplished by Suzuki-Miyaura cross-couplings. Their biological activity as inhibitors and/or non-natural substrates was assessed against a selected range of NAD+-consuming enzymes. The fluorescence of 8-aryl/heteroaryl NAD+ derivatives allowed their use as biochemical probes for the development of continuous biochemical assays to monitor NAD+-consuming enzyme activities. -
Lysyl-Protocollagen Hydroxylase Deficiency in Fibroblasts from Siblings with Hydroxylysine-Deficient Collagen
Proc. Nat. Acad. Sci. USA Vol. 69, No. 10, pp. 2899-2903, October 1972 Lysyl-Protocollagen Hydroxylase Deficiency in Fibroblasts from Siblings with Hydroxylysine-Deficient Collagen (prolyl-protocollagen hydroxylase/connective tissue/inborn error/crosslinks) S. M. KRANE, S. R. PINNELL, AND R. W. ERBE Departments of Medicine, Dermatology, and Pediatrics, Harvard Medical School and the Medical, Dermatology, and Children's Services, Massachusetts General Hospital, Boston, Massachusetts 02114 Communicated by E. R. Blout, July 31, 1972 ABSTRACT Cell culture studies were performed on were normal. The hydroxylysine content of dermis was also members of a family in which two sisters, ages 9 and 12, normal in three patients, each with the Marfan and Ehlers- have a similar disorder characterized clinically by severe scoliosis, joint laxity and recurrent dislocations, hyper- Danlos syndromes. Collagen from the skin of the affected extensible skin, and thin scars. The skin collagen from the children was more soluble in denaturing solvents than that sisters was markedly deficient in hydroxylysine, but other derived from controls (4), consistent with a defect in cross- amino acids were present in normal amounts. Hydroxy- linking of collagen molecules, a process in which hydroxylysine lysine in collagen from fascia and bone was reduced to a to involved lesser extent. Since the most likely explanation for the has been thought be critically (2, 5-8). Hydroxyly- hydroxylysihie deficiency was a reduction in enzymatic sine per se is not used in collagen biosynthesis; specific lysyl hydroxylation of lysine residues in protocollagen, we mea- residues are hydroxylated after their incorporation into the sured the activity of lysyl-protocollagen hydroxylase in polypeptide chains of protocollagen (9-12). -
Lysine and Novel Hydroxylysine Lipids in Soil Bacteria: Amino Acid Membrane Lipid Response to Temperature and Ph in Pseudopedobacter Saltans
Rowan University Rowan Digital Works School of Earth & Environment Faculty Scholarship School of Earth & Environment 6-1-2015 Lysine and novel hydroxylysine lipids in soil bacteria: amino acid membrane lipid response to temperature and pH in Pseudopedobacter saltans Elisha Moore Rowan University Ellen Hopmans W. Irene Rijpstra Irene Sanchez Andrea Laura Villanueva See next page for additional authors Follow this and additional works at: https://rdw.rowan.edu/see_facpub Part of the Environmental Microbiology and Microbial Ecology Commons Recommended Citation Moore, E.K., Hopmans, E., Rijpstra, W.I.C., Sanchez-Andrea, I., Villanueva, L., Wienk, H., ...& Sinninghe Damste, J. (2015). Lysine and novel hydroxylysine lipids in soil bacteria: amino acid membrane lipid response to temperature and pH in Pseudopedobacter saltans. Frontiers in Microbiology, Volume 6, Article 637. This Article is brought to you for free and open access by the School of Earth & Environment at Rowan Digital Works. It has been accepted for inclusion in School of Earth & Environment Faculty Scholarship by an authorized administrator of Rowan Digital Works. Authors Elisha Moore, Ellen Hopmans, W. Irene Rijpstra, Irene Sanchez Andrea, Laura Villanueva, Hans Wienk, Frans Schoutsen, Alfons Stams, and Jaap Sinninghe Damsté This article is available at Rowan Digital Works: https://rdw.rowan.edu/see_facpub/17 ORIGINAL RESEARCH published: 29 June 2015 doi: 10.3389/fmicb.2015.00637 Lysine and novel hydroxylysine lipids in soil bacteria: amino acid membrane lipid response to temperature and pH in Pseudopedobacter saltans Eli K. Moore 1*, Ellen C. Hopmans 1, W. Irene C. Rijpstra 1, Irene Sánchez-Andrea 2, Laura Villanueva 1, Hans Wienk 3, Frans Schoutsen 4, Alfons J.