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Oda K, Saito H, Jono H. Bayesian prediction-based individualized dosing of anti-methicillin-resistant Staphylococcus aureus treatment: Recent advancements and prospects in therapeutic drug monitoring. Pharmacol Ther 2023; 246:108433. [PMID: 37149156 DOI: 10.1016/j.pharmthera.2023.108433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/19/2023] [Accepted: 05/02/2023] [Indexed: 05/08/2023]
Abstract
As one of the efficient techniques for TDM, the population pharmacokinetic (popPK) model approach for dose individualization has been developed due to the rapidly growing innovative progress in computer technology and has recently been considered as a part of model-informed precision dosing (MIPD). Initial dose individualization and measurement followed by maximum a posteriori (MAP)-Bayesian prediction using a popPK model are the most classical and widely used approach among a class of MIPD strategies. MAP-Bayesian prediction offers the possibility of dose optimization based on measurement even before reaching a pharmacokinetically steady state, such as in an emergency, especially for infectious diseases requiring urgent antimicrobial treatment. As the pharmacokinetic processes in critically ill patients are affected and highly variable due to pathophysiological disturbances, the advantages offered by the popPK model approach make it highly recommended and required for effective and appropriate antimicrobial treatment. In this review, we focus on novel insights and beneficial aspects of the popPK model approach, especially in the treatment of infectious diseases with anti-methicillin-resistant Staphylococcus aureus agents represented by vancomycin, and discuss the recent advancements and prospects in TDM practice.
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Affiliation(s)
- Kazutaka Oda
- Department of Pharmacy, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Hideyuki Saito
- Department of Pharmacy, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan; Department of Clinical Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University; 1-1-1, Honjo, Chuo-ku, Kumamoto, Japan
| | - Hirofumi Jono
- Department of Pharmacy, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan; Department of Clinical Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University; 1-1-1, Honjo, Chuo-ku, Kumamoto, Japan.
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2
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Natural Apocarotenoids and Their Synthetic Glycopeptide Conjugates Inhibit SARS-CoV-2 Replication. Pharmaceuticals (Basel) 2021; 14:ph14111111. [PMID: 34832893 PMCID: PMC8619593 DOI: 10.3390/ph14111111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 12/24/2022] Open
Abstract
The protracted global COVID-19 pandemic urges the development of new drugs against the causative agent SARS-CoV-2. The clinically used glycopeptide antibiotic, teicoplanin, emerged as a potential antiviral, and its efficacy was improved with lipophilic modifications. This prompted us to prepare new lipophilic apocarotenoid conjugates of teicoplanin, its pseudoaglycone and the related ristocetin aglycone. Their antiviral effect was tested against SARS-CoV-2 in Vero E6 cells, using a cell viability assay and quantitative PCR of the viral RNA, confirming their micromolar inhibitory activity against viral replication. Interestingly, two of the parent apocarotenoids, bixin and β-apo-8′carotenoic acid, exerted remarkable anti-SARS-CoV-2 activity. Mechanistic studies involved cathepsin L and B, as well as the main protease 3CLPro, and the results were rationalized by computational studies. Glycopeptide conjugates show dual inhibitory action, while apocarotenoids have mostly cathepsin B and L affinity. Since teicoplanin is a marketed antibiotic and the natural bixin is an approved, cheap and widely used red colorant food additive, these readily available compounds and their conjugates as potential antivirals are worthy of further exploration.
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Gonnella NC, Grinberg N, Mcloughlin M, Choudhary O, Fandrick K, Ma S. Three-dimensional structure of cyclic antibiotic teicoplanin aglycone using NMR distance and dihedral angle restraints in a DMSO solvation model. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2015; 53:829-835. [PMID: 26138046 DOI: 10.1002/mrc.4279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 05/12/2015] [Accepted: 05/19/2015] [Indexed: 06/04/2023]
Abstract
The three-dimensional solution conformation of teicoplanin aglycone was determined using NMR spectroscopy. A combination of NOE and dihedral angle restraints in a DMSO solvation model was used to calculate an ensemble of structures having a root mean square deviation of 0.17 Å. The structures were generated using systematic searches of conformational space for optimal satisfaction of distance and dihedral angle restraints. Comparison of the NMR-derived structure of teicoplanin aglycone with the X-ray structure of a teicoplanin aglycone analog revealed a common backbone conformation with deviation of two aromatic side chain substituents. Experimentally determined backbone (13)C chemical shifts showed good agreement with those computed at the density functional level of theory, providing a cross validation of the backbone conformation. The flexible portion of the molecule was consistent with the region that changes conformation to accommodate protein binding. The results showed that a hydrogen-bonded DMSO molecule in combination with NMR-derived restraints together enabled calculation of structures that satisfied experimental data.
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Affiliation(s)
- Nina C Gonnella
- Materials and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA
| | - Nelu Grinberg
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA
| | - Mark Mcloughlin
- Materials and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA
| | - Om Choudhary
- Materials and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA
| | - Keith Fandrick
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA
| | - Shengli Ma
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA
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4
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Li Z, Rupasinghe SG, Schuler MA, Nair SK. Crystal structure of a phenol-coupling P450 monooxygenase involved in teicoplanin biosynthesis. Proteins 2011; 79:1728-38. [PMID: 21445994 PMCID: PMC3103887 DOI: 10.1002/prot.22996] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 12/20/2010] [Accepted: 12/27/2010] [Indexed: 11/06/2022]
Abstract
The lipoglycopeptide antibiotic teicoplanin has proven efficacy against gram-positive pathogens. Teicoplanin is distinguished from the vancomycin-type glycopeptide antibiotics, by the presence of an additional cross-link between the aromatic amino acids 1 and 3 that is catalyzed by the cytochrome P450 monooxygenase Orf6* (CYP165D3). As a goal towards understanding the mechanism of this phenol-coupling reaction, we have characterized recombinant Orf6* and determined its crystal structure to 2.2-Å resolution. Although the structure of Orf6* reveals the core fold common to other P450 monooxygenases, there are subtle differences in the disposition of secondary structure elements near the active site cavity necessary to accommodate its complex heptapeptide substrate. Specifically, the orientation of the F and G helices in Orf6* results in a more closed active site than found in the vancomycin oxidative enzymes OxyB and OxyC. In addition, Met226 in the I helix replaces the more typical Gly/Ala residue that is positioned above the heme porphyrin ring, where it forms a hydrogen bond with a heme iron-bound water molecule. Sequence comparisons with other phenol-coupling P450 monooxygenases suggest that Met226 plays a role in determining the substrate regiospecificity of Orf6*. These features provide further insights into the mechanism of the cross-linking mechanisms that occur during glycopeptide antibiotics biosynthesis.
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Affiliation(s)
- Zhi Li
- Department of Biochemistry, 600 S. Mathews Avenue, Urbana, IL 61801, USA
| | - Sanjeewa G. Rupasinghe
- Department of Cell and Developmental Biology, 1201 W. Gregory Dr., 161 Edward R. Madigan Laboratory, Urbana, IL 61801, USA
- Department of Plant Biology, 1201 W. Gregory Dr., 161 Edward R. Madigan Laboratory, Urbana, IL 61801, USA
| | - Mary A. Schuler
- Department of Biochemistry, 600 S. Mathews Avenue, Urbana, IL 61801, USA
- Department of Cell and Developmental Biology, 1201 W. Gregory Dr., 161 Edward R. Madigan Laboratory, Urbana, IL 61801, USA
- Department of Plant Biology, 1201 W. Gregory Dr., 161 Edward R. Madigan Laboratory, Urbana, IL 61801, USA
| | - Satish K. Nair
- Department of Biochemistry, 600 S. Mathews Avenue, Urbana, IL 61801, USA
- Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign
- Institute for Genomic Biology, University of Illinois at Urbana-Champaign
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5
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Cloning and characterization of new glycopeptide gene clusters found in an environmental DNA megalibrary. Proc Natl Acad Sci U S A 2008; 105:17273-7. [PMID: 18987322 DOI: 10.1073/pnas.0807564105] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Glycopeptide antibiotics have long served as drugs of last resort for the treatment of antibiotic-resistant gram-positive bacterial infections. Resistance to the clinically relevant glycopeptides, vancomycin and teicoplanin, threatens to undermine the usefulness of this important class of antibiotics. DNA extracted from a geographically diverse collection of soil samples was screened by PCR for the presence of sequences related to OxyC, an oxidative coupling enzyme found in glycopeptide biosynthetic gene clusters. Every soil sample examined contained at least 1 unique OxyC gene sequence. In an attempt to access the biosynthetic gene clusters associated with these OxyC sequences, a 10,000,000-membered environmental DNA (eDNA) megalibrary was created from a single soil sample. Two unique glycopeptide gene clusters were recovered from this eDNA megalibrary. Using the teicoplanin aglycone and the 3 sulfotransferases found in one of these gene clusters, mono-, di-, and trisulfated glycopeptide congeners were produced. The high frequency with which OxyC genes were found in environmental samples indicates that soil eDNA libraries are likely to be a rewarding source of glycopeptide gene clusters. Enzymes found in these gene clusters should be useful for generating new glycopeptides analogs. Environmental DNA megalibraries, like the one constructed for this study, can provide access to many of the natural product biosynthetic gene clusters that are predicted to be present in soil microbiomes.
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Hadatsch B, Butz D, Schmiederer T, Steudle J, Wohlleben W, Süssmuth R, Stegmann E. The Biosynthesis of Teicoplanin-Type Glycopeptide Antibiotics: Assignment of P450 Mono-Oxygenases to Side Chain Cyclizations of Glycopeptide A47934. ACTA ACUST UNITED AC 2007; 14:1078-89. [PMID: 17884639 DOI: 10.1016/j.chembiol.2007.08.014] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2007] [Revised: 08/10/2007] [Accepted: 08/13/2007] [Indexed: 11/19/2022]
Abstract
Streptomyces toyocaensis produces A47934, a teicoplanin-like type-IV glycopeptide with antibiotic activity against methicillin-resistant Staphylococcus aureus. A47934 differs from the type-I vancomycin glycopeptides, which possess a tricyclic peptide backbone, by the presence of an additional ring closure between the aromatic amino acids 1 and 3. To elucidate the order of crosslinking reactions, P450 mono-oxygenase-inactivation mutants (DeltastaF, DeltastaG, DeltastaH, and DeltastaJ) of the A47934 producer were generated, and the accumulated intermediates were analyzed. Thus, the formation of each crosslink could unambiguously be assigned to a specific oxygenase. The structure of the released intermediates from the wild-type nonribosomal peptide synthetase assembly line facilitated the determination of the cyclization order. Unexpectedly, the additional ring closure in A47934, catalyzed by StaG, is the second oxygenase reaction.
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Affiliation(s)
- Bianka Hadatsch
- Institut für Mikrobiologie/Biotechnologie, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
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7
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Sztaricskai F, Batta G, Herczegh P, Balázs A, Jeko J, Roth E, Szabó PT, Kardos S, Rozgonyi F, Boda Z. A new series of glycopeptide antibiotics incorporating a squaric acid moiety. Synthesis, structural and antibacterial studies. J Antibiot (Tokyo) 2007; 59:564-82. [PMID: 17136889 DOI: 10.1038/ja.2006.77] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The aglycones of the antibiotics eremomycin, vancomycin and ristocetin (3, 4 and 6, respectively) were prepared by deglycosidation of the parent antibiotics with hydrogen fluoride, and complete assignation of their 1H, 13C and 15N spectra was performed. The squaric acid amide esters (11-14), were prepared from dimethyl squarate. The corresponding asymmetric diamides (16-19, 22, 23) were also synthesized using 4-phenylbenzylamine and triglycine. The advantage of the method is the high regioselectivity and that no protecting group strategy is required. Electrospray mass spectroscopic method was elaborated for the determination of the site of substitution of the modified antibiotics. The antibacterial activity of the prepared compounds is discussed in detail.
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Affiliation(s)
- Ferenc Sztaricskai
- Research Group for Antibiotics of the Hungarian Academy of Sciences, and Department of Pharmaceutical Chemistry, University of Debrecen, H-4010 Debrecen, PO.Box 70, Hungary.
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8
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Balzarini J, Keyaerts E, Vijgen L, Egberink H, De Clercq E, Van Ranst M, Printsevskaya SS, Olsufyeva EN, Solovieva SE, Preobrazhenskaya MN. Inhibition of feline (FIPV) and human (SARS) coronavirus by semisynthetic derivatives of glycopeptide antibiotics. Antiviral Res 2006; 72:20-33. [PMID: 16675038 PMCID: PMC7114212 DOI: 10.1016/j.antiviral.2006.03.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2006] [Revised: 03/13/2006] [Accepted: 03/14/2006] [Indexed: 11/28/2022]
Abstract
Various semisynthetic derivatives of glycopeptide antibiotics including vancomycin, eremomycin, teicoplanin, ristocetin A and DA-40926 have been evaluated for their inhibitory activity against feline infectious peritonitis virus (FIPV) and human (SARS-CoV, Frankfurt-1 strain) coronavirus in cell culture in comparison with their activity against human immunodeficiency virus (HIV). Several glycopeptide derivatives modified with hydrophobic substituents showed selective antiviral activity. For the most active compounds, the 50% effective concentrations (EC50) were in the lower micromolar range. In general, removal of the carbohydrate parts of the molecules did not affect the antiviral activity of the compounds. Some compounds showed inhibitory activity against both, whereas other compounds proved inhibitory to either, FIPV or SARS-CoV. There was no close correlation between the EC50 values of the glycopeptide derivatives for FIPV or SARS-CoV.
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Affiliation(s)
- Jan Balzarini
- Rega Institute for Medical Research, K.U. Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium.
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9
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Kruger RG, Lu W, Oberthür M, Tao J, Kahne D, Walsh CT. Tailoring of glycopeptide scaffolds by the acyltransferases from the teicoplanin and A-40,926 biosynthetic operons. ACTA ACUST UNITED AC 2005; 12:131-40. [PMID: 15664522 DOI: 10.1016/j.chembiol.2004.12.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2004] [Revised: 10/22/2004] [Accepted: 10/30/2004] [Indexed: 10/25/2022]
Abstract
The teicoplanin acyltransferase (Atf) responsible for N-acylation of the glucosamine moiety to create the teicoplanin lipoglycopeptide scaffold has recently been identified. Here we use that enzyme (tAtf) and the cognate acyltransferase from the related A-40,926 biosynthetic cluster (aAtf) to evaluate specificity for glycopeptide scaffolds and for the acyl-CoA donor. In addition to acylation of 2-aminoglucosyl glycopeptide scaffolds with k(cat) values of 400-2000 min(-1), both Atfs transfer acyl groups to regioisomeric 6-aminoglucosyl scaffolds and to glucosyl scaffolds at rates of 0.2-0.5 min(-1) to create variant lipoglycopeptides. Using the teicoplanin glycosyltransferase tGtfA, tAtf, and GtfD, a glycosyltransferase from the vancomycin producer, it is possible to assemble a novel lipoglycopeptide with GlcNAc at beta-OH-Tyr(6) and an N(6)-acyl-glucosaminyl-vancosamine at Phegly(4). This study illustrates the utility of chemo- and regioselective acyltransferases and glycosyltransferases to create novel lipoglycopeptides.
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Affiliation(s)
- Ryan G Kruger
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
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10
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Balzarini J, Pannecouque C, De Clercq E, Pavlov AY, Printsevskaya SS, Miroshnikova OV, Reznikova MI, Preobrazhenskaya MN. Antiretroviral activity of semisynthetic derivatives of glycopeptide antibiotics. J Med Chem 2003; 46:2755-64. [PMID: 12801238 DOI: 10.1021/jm0300882] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A variety of semisynthetic derivatives of natural antibacterial glycopeptide antibiotics such as vancomycin, eremomycin, ristocetin A, teicoplanin A(2)-2, DA-40926, their aglycons, and also the products of their partial degradation with a destroyed or modified peptide core show marked anti-retroviral activity in cell culture. In particular, aglycon antibiotic derivatives containing various substituents of a preferably hydrophobic nature displayed activity against human immunodeficiency virus type 1 (HIV-1), HIV-2, and Moloney murine sarcoma virus at a 50% inhibitory concentration in the lower micromolar (1-5 microM) concentration range while not being cytostatic against human lymphocytic cells at 250 microM or higher. The mode of anti-HIV action of the antibiotic aglycon derivatives could be ascribed to inhibition of the viral entry process.
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Affiliation(s)
- Jan Balzarini
- Rega Institute for Medical Research, Katholieke Universiteit Leuven, B-3000 Leuven, Belgium
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11
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Seneci P. Encoding techniques for pool libraries of small organic molecules. J Recept Signal Transduct Res 2001; 21:409-45. [PMID: 11789691 DOI: 10.1081/rrs-100107925] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- P Seneci
- GlaxoWellcome Medicines Research Centre, Verona, Italy
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12
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Losey HC, Peczuh MW, Chen Z, Eggert US, Dong SD, Pelczer I, Kahne D, Walsh CT. Tandem action of glycosyltransferases in the maturation of vancomycin and teicoplanin aglycones: novel glycopeptides. Biochemistry 2001; 40:4745-55. [PMID: 11294642 DOI: 10.1021/bi010050w] [Citation(s) in RCA: 129] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The glycopeptides vancomycin and teicoplanin are clinically important antibiotics. The carbohydrate portions of these molecules affect biological activity, and there is great interest in developing efficient strategies to make carbohydrate derivatives. To this end, genes encoding four glycosyltransferases, GtfB, C, D, E, were subcloned from Amycolatopsis orientalis strains that produce chloroeremomycin (GtfB, C) or vancomycin (GtfD, E) into Escherichia coli. After expression and purification, each glycosyltransferase (Gtf) was characterized for activity either with the aglycones (GtfB, E) or the glucosylated derivatives (GtfC, D) of vancomycin and teicoplanin. GtfB efficiently glucosylates vancomycin aglycone using UDP-glucose as the glycosyl donor to form desvancosaminyl-vancomycin (vancomycin pseudoaglycone), with k(cat) of 17 min(-1), but has very low glucosylation activity, < or = 0.3 min(-1), for an alternate substrate, teicoplanin aglycone. In contrast, GtfE is much more efficient at glucosylating both its natural substrate, vancomycin aglycone (k(cat) = 60 min(-1)), and an unnatural substrate, teicoplanin aglycone (k(cat) = 20 min(-1)). To test the addition of the 4-epi-vancosamine moiety by GtfC and GtfD, synthesis of UDP-beta-L-4-epi-vancosamine was undertaken. This NDP-sugar served as a substrate for both GtfC and GtfD in the presence of vancomycin pseudoaglycone (GtfC and GtfD) or the glucosylated teicoplanin scaffold, 7 (GtfD). The GtfC product was the 4-epi-vancosaminyl form of vancomycin. Remarkably, GtfD was able to utilize both an unnatural acceptor, 7, and an unnatural nucleotide sugar donor, UDP-4-epi-vancosamine, to synthesize a novel hybrid teicoplanin/vancomycin glycopeptide. These results establish the enzymatic activity of these four Gtfs, begin to probe substrate specificity, and illustrate how they can be utilized to make variant sugar forms of both the vancomycin and the teicoplanin class of glycopeptide antibiotics.
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Affiliation(s)
- H C Losey
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA
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13
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Boger DL, Weng JH, Miyazaki S, McAtee JJ, Castle SL, Kim SH, Mori Y, Rogel O, Strittmatter H, Jin Q. Thermal Atropisomerism of Teicoplanin Aglycon Derivatives: Preparation of the P,P,P and M,P,P Atropisomers of the Teicoplanin Aglycon via Selective Equilibration of the DE Ring System. J Am Chem Soc 2000. [DOI: 10.1021/ja002376i] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dale L. Boger
- Contribution from the Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Jian-Hui Weng
- Contribution from the Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Susumu Miyazaki
- Contribution from the Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - J. Jeffrey McAtee
- Contribution from the Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Steven L. Castle
- Contribution from the Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Seong Heon Kim
- Contribution from the Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Yoshiki Mori
- Contribution from the Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Olivier Rogel
- Contribution from the Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Harald Strittmatter
- Contribution from the Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Qing Jin
- Contribution from the Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
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14
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Heydorn A, Petersen BO, Duus JO, Bergmann S, Suhr-Jessen T, Nielsen J. Biosynthetic studies of the glycopeptide teicoplanin by (1)H and (13)C NMR. J Biol Chem 2000; 275:6201-6. [PMID: 10692413 DOI: 10.1074/jbc.275.9.6201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The biosynthesis of the glycopeptide antibiotic teicoplanin was studied by growing a teicoplanin producing strain of Actinoplanes teichomyceticus (ATCC 31121) on glucose containing either 34.0% [1-(13)C]glucose or 9.7% [U-(13)C]glucose. The fractional enrichment pattern of teicoplanin produced in the medium containing [1-(13)C]glucose was obtained from a one-dimensional (13)C spectrum. The enrichment pattern showed characteristic peaks indicating that amino acids 3 and 7 are derived from acetate, whereas amino acids 1, 2, 4, 5, and 6 are derived from tyrosine. Multiplet structures in heteronuclear single quantum coherence spectra of teicoplanin produced in the medium containing [U-(13)C]glucose showed characteristic coupling patterns supporting these results. Fractional enrichment patterns and multiplet structures of the three sugars in teicoplanin showed that about 50% of the sugars have the same labeling pattern as the glucose substrate whereas the rest have a labeling pattern showing that they are reassembled, probably from precursors in the primary metabolism.
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Affiliation(s)
- A Heydorn
- Center for Process Biotechnology, Department of Biotechnology, Technical University of Denmark, DK-2800 Lyngby, Denmark
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15
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Malabarba A, Nicas T, Ciabatti R. Glycopeptide resistance in multiple antibiotic-resistant Gram-positive bacteria: a current challenge for novel semi-synthetic glycopeptide derivatives. Eur J Med Chem 1997. [DOI: 10.1016/s0223-5234(97)84010-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Combinatorial chemistry and natural products. Teicoplanin aglycone as a molecular scaffold for solid phase synthesis of combinatorial libraries. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01350-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Malabarba A, Ciabatti R, Kettenring J, Ferrari P, Vékey K, Bellasio E, Denaro M. Structural Modifications of the Active Site in Teicoplanin and Related Glycopeptides. 1. Reductive Hydrolysis of the 1,2- and 2,3-Peptide Bonds. J Org Chem 1996. [DOI: 10.1021/jo941809v] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adriano Malabarba
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Romeo Ciabatti
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Jürgen Kettenring
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Pietro Ferrari
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Károly Vékey
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Elvio Bellasio
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Maurizio Denaro
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
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18
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Malabarba A, Ciabatti R, Maggini M, Ferrari P, Colombo L, Denaro M. Structural Modifications of the Active Site in Teicoplanin and Related Glycopeptides. 2. Deglucoteicoplanin-Derived Tetrapeptide. J Org Chem 1996. [DOI: 10.1021/jo9506746] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Adriano Malabarba
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Romeo Ciabatti
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Michele Maggini
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Pietro Ferrari
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Luigi Colombo
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
| | - Maurizio Denaro
- Marion Merrell Dow Research Institute, Lepetit Center, Via R. Lepetit 34, 21040 Gerenzano (Varese), Italy
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