1
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Yan B, Li W, Hackenberger CPR. A silyl ether-protected building block for O-GlcNAcylated peptide synthesis to enable one-pot acidic deprotection. Org Biomol Chem 2021; 19:8014-8017. [PMID: 34596198 DOI: 10.1039/d1ob00510c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this report, we introduce a novel building block for Fmoc/tBu solid phase peptide synthesis (SPPS) of β-linked O-GlcNAcylated peptides. This building block carries acid labile silyl ether protecting groups, which are fully removed under TFA-mediated peptide cleavage conditions from the resin, thus requiring fewer synthetic steps and no intermediate purification as compared to other acid or base labile protecting group strategies.
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Affiliation(s)
- Bingjia Yan
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, 13125 Berlin, Germany. .,Humboldt Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489 Berlin, Germany
| | - Wenyi Li
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, 13125 Berlin, Germany.
| | - Christian P R Hackenberger
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie, 13125 Berlin, Germany. .,Humboldt Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489 Berlin, Germany
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2
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Yokoi Y, Nishimura SI. Effect of Site-Specific O-Glycosylation on the Structural Behavior of NOTCH1 Receptor Extracellular EGF-like Domains 11 and 10. Chemistry 2020; 26:12363-12372. [PMID: 32632967 DOI: 10.1002/chem.202002652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Indexed: 12/16/2022]
Abstract
Human NOTCH1 receptor contains 36 epidermal growth factor (EGF)-like repeating domains, in which O-glycosylation status of EGF12 domain regulates the interaction with Notch ligands. Our interest is focused on the effect of specific O-glycosylation states on the structural behavior of EGF11 and EGF10, because they appeared to affect molecular mechanism in receptor-ligand interactions by inducing some conformational alterations in these domains and/or the regions connecting two domains. To understand the structural impact of various O-glycosylation patterns on the pivotal EGF-like repeats 10, 11, and 12, we performed chemical synthesis and NMR studies of site-specifically O-glycosylated EGF11 and EGF10. Our strategy enabled us to synthesize four EGF11 and five EGF10 modules. The specific O-glycosylation states affected in vitro folding of EGF10 more than EGF11, while calcium ion had a larger effect on EGF11 folding. Comprehensive NMR studies shed light on the new type "sugar bridges" crosslinking Thr-O-GlcNAc in the consensus sequence C5-X-X-G-X-(T/S)-G-X-X-C6 and an amino acid in the hinge region between the domains, 445Thr-O-GlcNAc-IIe451 in domain 11 and 405Thr-O-GlcNAc-Gln411 in domain 10, respectively.
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Affiliation(s)
- Yasuhiro Yokoi
- Graduate School of Life Science and Faculty of Advanced Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo, 001-0021, Japan
| | - Shin-Ichiro Nishimura
- Graduate School of Life Science and Faculty of Advanced Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo, 001-0021, Japan
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3
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Li Y, Zhang Y, Wu M, Chang Q, Hu H, Zhao X. Improving Selectivity, Proteolytic Stability, and Antitumor Activity of Hymenochirin-1B: A Novel Glycosylated Staple Strategy. ACS Chem Biol 2019; 14:516-525. [PMID: 30789695 DOI: 10.1021/acschembio.9b00046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
As a host defense peptide, hymenochirin-1B has attracted increasing attention for its strong cytotoxic activities. However, its poor selectivity and proteolytic stability remain major obstacles for clinical application. To solve these problems, we designed and synthesized a series of peptide analogues of hymenochirin-1B based on cationic residue substitution and stapling combined with a glycosylation strategy. Some analogues showed improvement not only in selectivity and proteolytic stability but also in antitumor activity. Among them, the glycosylated stapled peptide H-58 was identified as the most potential antitumor peptide. Flow cytometry and a competitive binding assay revealed that H-58 displayed significant antitumor selectivity. Confocal microscopy and nuclear staining with Hoechst dye demonstrated that H-58 entered the nucleus and caused DNA damage. In summary, the strategy of glycosylated stapled peptides is a promising approach for improving the antitumor selectivity, proteolytic stability, and antitumor activity of hymenochirin-1B, which can be used for other bioactive peptide modifications.
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Affiliation(s)
- Yulei Li
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Yihan Zhang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Minghao Wu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Qi Chang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Honggang Hu
- Translational Medicine Institute, Shanghai University, Shanghai 200436, China
| | - Xia Zhao
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
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4
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De Leon CA, Lang G, Saavedra MI, Pratt MR. Simple and Efficient Preparation of O- and S-GlcNAcylated Amino Acids through InBr 3-Catalyzed Synthesis of β- N-Acetylglycosides from Commercially Available Reagents. Org Lett 2018; 20:5032-5035. [PMID: 30088936 DOI: 10.1021/acs.orglett.8b02182] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The facile synthesis of serine, threonine, and cysteine β-glycosides using commercially available peracetylated β- N-acetylglucosamine (β-Ac4GlcNAc) and catalytic amounts of indium bromide (InBr3) is described. This method involves only inexpensive reagents that require no further modification or special handling. The reagents are simply mixed, dissolved, and refluxed to afford the GlcNAcylated amino acids in great yields (70-80%). This operationally simple procedure should facilitate the study of O-GlcNAcylation without necessitating expertise in synthetic carbohydrate chemistry.
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5
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Beau JM, Boyer FD, Norsikian S, Urban D, Vauzeilles B, Xolin A. Glycosylation: The Direct Synthesis of 2-Acetamido-2-Deoxy-Sugar Glycosides. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800735] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jean-Marie Beau
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Univ. Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud, CNRS, Université Paris-Saclay; 91405 Orsay France
| | - François-Didier Boyer
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Univ. Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
- Institut Jean-Pierre Bourgin, INRA; AgroParisTech, CNRS; Université Paris-Saclay; 78000 Versailles France
| | - Stéphanie Norsikian
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Univ. Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Dominique Urban
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud, CNRS, Université Paris-Saclay; 91405 Orsay France
| | - Boris Vauzeilles
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Univ. Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud, CNRS, Université Paris-Saclay; 91405 Orsay France
| | - Amandine Xolin
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Univ. Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
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6
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Ryan P, Koh AHW, Lohning AE, Rudrawar S. Solid-Phase O-Glycosylation with a Glucosamine Derivative for the Synthesis of a Glycopeptide. Aust J Chem 2017. [DOI: 10.1071/ch17201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
An efficient synthesis of the O-linked glycosylamino acid Fmoc–l-Ser((Ac)3–β-d-GlcNAc)-OH building block is described. The utility of the method was demonstrated with direct solid-phase O-glycosylation of the hydroxyl group on the amino acid (Ser) side chain of a human α-A crystallin-derived peptide (AIPVSREEK) in nearly quantitative glycosylation yield.
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7
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Behrendt R, White P, Offer J. Advances in Fmoc solid-phase peptide synthesis. J Pept Sci 2016; 22:4-27. [PMID: 26785684 PMCID: PMC4745034 DOI: 10.1002/psc.2836] [Citation(s) in RCA: 414] [Impact Index Per Article: 51.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/20/2015] [Indexed: 12/13/2022]
Abstract
Today, Fmoc SPPS is the method of choice for peptide synthesis. Very-high-quality Fmoc building blocks are available at low cost because of the economies of scale arising from current multiton production of therapeutic peptides by Fmoc SPPS. Many modified derivatives are commercially available as Fmoc building blocks, making synthetic access to a broad range of peptide derivatives straightforward. The number of synthetic peptides entering clinical trials has grown continuously over the last decade, and recent advances in the Fmoc SPPS technology are a response to the growing demand from medicinal chemistry and pharmacology. Improvements are being continually reported for peptide quality, synthesis time and novel synthetic targets. Topical peptide research has contributed to a continuous improvement and expansion of Fmoc SPPS applications.
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Affiliation(s)
- Raymond Behrendt
- Novabiochem, Merck & CieIm Laternenacker 58200SchaffhausenSwitzerland
| | - Peter White
- Novabiochem, Merck Chemicals LtdPadge RoadBeestonNG9 2JRUK
| | - John Offer
- The Francis Crick Institute215 Euston RoadLondonNW1 2BEUK
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8
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Rosa M, Marcelo F, Calle LP, Rougeot C, Jiménez-Barbero J, Arsequell G, Valencia G. Influence of polar side chains modifications on the dual enkephalinase inhibitory activity and conformation of human opiorphin, a pain perception related peptide. Bioorg Med Chem Lett 2015; 25:5190-3. [PMID: 26463133 DOI: 10.1016/j.bmcl.2015.09.071] [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: 07/24/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 10/22/2022]
Abstract
The dual inhibitory action of the pain related peptide opiorphin (H-Gln-Arg-Phe-Ser-Arg-OH) against neutral endopeptidase (NEP) and aminopeptidase N (AP-N) was further investigated by a SAR study involving minor modifications on the polar side chains of Arg residues and glycosylation with monosaccharides at Ser. None of them exerted dual or individual inhibitory potency superior than opiorphin. However, the correlations deduced offer further proof for the key role of these residues upon the binding and bioactive conformational stabilization of opiorphin. NMR conformational studies on the glycopeptides suggest that they are still very flexible compounds that may attain their respective bioactive conformations.
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Affiliation(s)
- Mònica Rosa
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), E-08034 Barcelona, Spain
| | - Filipa Marcelo
- UCIBIO, REQUIMTE Faculdade Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Luis P Calle
- CIC bioGUNE, Bizkaia Technological Park, E-48160 Derio, Spain
| | - Catherine Rougeot
- Institut Pasteur-Unité de Biochimie Structurale et Cellulaire/URA2185-CNRS, Paris Cedex 15 75724, France
| | - Jesús Jiménez-Barbero
- CIC bioGUNE, Bizkaia Technological Park, E-48160 Derio, Spain; Ikerbasque, Basque Foundation for Science, E-48013 Bilbao, Spain
| | - Gemma Arsequell
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), E-08034 Barcelona, Spain
| | - Gregorio Valencia
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), E-08034 Barcelona, Spain
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9
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Yamanoi T, Oda Y, Midorikawa M. Formation of 2-Acetamido-2-deoxy-D-glucopyranosidic Linkages via Glycosidation Using a Combination of Two Lewis Acids. HETEROCYCLES 2015. [DOI: 10.3987/com-14-s(k)4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Elbaum MB, Zondlo NJ. OGlcNAcylation and phosphorylation have similar structural effects in α-helices: post-translational modifications as inducible start and stop signals in α-helices, with greater structural effects on threonine modification. Biochemistry 2014; 53:2242-60. [PMID: 24641765 PMCID: PMC4004263 DOI: 10.1021/bi500117c] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
![]()
OGlcNAcylation
and phosphorylation are the major competing intracellular
post-translational modifications of serine and threonine residues.
The structural effects of both post-translational modifications on
serine and threonine were examined within Baldwin model α-helical
peptides (Ac-AKAAAAKAAAAKAAGY-NH2 or Ac-YGAKAAAAKAAAAKAA-NH2). At the N-terminus of an α-helix, both phosphorylation
and OGlcNAcylation stabilized the α-helix relative to the free
hydroxyls, with a larger induced structure for phosphorylation than
for OGlcNAcylation, for the dianionic phosphate than for the monoanionic
phosphate, and for modifications on threonine than for modifications
on serine. Both phosphoserine and phosphothreonine resulted in peptides
more α-helical than alanine at the N-terminus, with dianionic
phosphothreonine the most α-helix-stabilizing residue here.
In contrast, in the interior of the α-helix, both post-translational
modifications were destabilizing with respect to the α-helix,
with the greatest destabilization seen for threonine OGlcNAcylation
at residue 5 and threonine phosphorylation at residue 10, with peptides
containing either post-translational modification existing as random
coils. At the C-terminus, both OGlcNAcylation and phosphorylation
were destabilizing with respect to the α-helix, though the induced
structural changes were less than in the interior of the α-helix.
In general, the structural effects of modifications on threonine were
greater than the effects on serine, because of both the lower α-helical
propensity of Thr and the more defined induced structures upon modification
of threonine than serine, suggesting threonine residues are particularly
important loci for structural effects of post-translational modifications.
The effects of serine and threonine post-translational modifications
are analogous to the effects of proline on α-helices, with the
effects of phosphothreonine being greater than those of proline throughout
the α-helix. These results provide a basis for understanding
the context-dependent structural effects of these competing protein
post-translational modifications.
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Affiliation(s)
- Michael B Elbaum
- Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States
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11
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Brister M, Pandey AK, Bielska AA, Zondlo NJ. OGlcNAcylation and phosphorylation have opposing structural effects in tau: phosphothreonine induces particular conformational order. J Am Chem Soc 2014; 136:3803-16. [PMID: 24559475 PMCID: PMC4004249 DOI: 10.1021/ja407156m] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Indexed: 01/12/2023]
Abstract
Phosphorylation and OGlcNAcylation are dynamic intracellular protein post-translational modifications that frequently are alternatively observed on the same serine and threonine residues. Phosphorylation and OGlcNAcylation commonly occur in natively disordered regions of proteins, and often have opposing functional effects. In the microtubule-associated protein tau, hyperphosphorylation is associated with protein misfolding and aggregation as the neurofibrillary tangles of Alzheimer's disease, whereas OGlcNAcylation stabilizes the soluble form of tau. A series of peptides derived from the proline-rich domain (residues 174-251) of tau was synthesized, with free Ser/Thr hydroxyls, phosphorylated Ser/Thr (pSer/pThr), OGlcNAcylated Ser/Thr, and diethylphosphorylated Ser/Thr. Phosphorylation and OGlcNAcylation were found by CD and NMR to have opposing structural effects on polyproline helix (PPII) formation, with phosphorylation favoring PPII, OGlcNAcylation opposing PPII, and the free hydroxyls intermediate in structure, and with phosphorylation structural effects greater than OGlcNAcylation. For tau196-209, phosphorylation and OGlcNAcylation had similar structural effects, opposing a nascent α-helix. Phosphomimic Glu exhibited PPII-favoring structural effects. Structural changes due to Thr phosphorylation were greater than those of Ser phosphorylation or Glu, with particular conformational restriction as the dianion, with mean (3)JαN = 3.5 Hz (pThr) versus 5.4 Hz (pSer), compared to 7.2, 6.8, and 6.2 Hz for Thr, Ser, and Glu, respectively, values that correlate with the backbone torsion angle ϕ. Dianionic phosphothreonine induced strong phosphothreonine amide protection and downfield amide chemical shifts (δmean = 9.63 ppm), consistent with formation of a stable phosphate-amide hydrogen bond. These data suggest potentially greater structural importance of threonine phosphorylation than serine phosphorylation due to larger induced structural effects.
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Affiliation(s)
| | | | - Agata A. Bielska
- Department of Chemistry and
Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Neal J. Zondlo
- Department of Chemistry and
Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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12
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Yamanoi T, Midorikawa M, Oda Y. Formation of 1,2-cis-α-Aryl-glycosidic Linkages Directly from 2-Acetamido-2-deoxy-D-glucopyranosyl Acetate by the Mixed Activating System Using Ytterbium(III) Triflate and Catalytic Boron Trifluoride Diethyl Etherate Complex. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)44] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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A novel approach for the parallel synthesis of glycopeptides by combining solid-phase peptide synthesis and dendrimer-supported enzymatic modifications. Polym J 2013. [DOI: 10.1038/pj.2013.14] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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14
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Rodriguez MC, Cudic M. Optimization of physicochemical and pharmacological properties of peptide drugs by glycosylation. Methods Mol Biol 2013; 1081:107-136. [PMID: 24014437 DOI: 10.1007/978-1-62703-652-8_8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Many biological interactions and functions are mediated by glycans, leading to the emerging importance of carbohydrate and glycoconjugate chemistry in the design of novel drug therapeutics. In addition to direct effects on biological activity, sugar addition appears to alter many physicochemical and pharmacological properties of the peptide backbone. Consequently, glycosylation has been often used to improve various less than optimal features of peptide drug leads.In order to study the effects that naturally occurring and/or nonnatural glycans have on peptide drug solubility, conformation, proteolytic resistance, membrane permeability, and toxicity, it is essential to have convenient synthetic access toward synthesis of glycopeptide analogs. The crucial step in the synthesis of glycopeptides is the introduction of the carbohydrate group. The preformed glycosyl amino acid building block is the most commonly employed approach used in glycopeptide synthesis.In this review, we will describe various synthetic approaches to prepare N- and O-glycopeptides bearing simple monosaccharides as a tool to improve peptide therapeutic efficacy by glycosylation.
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Affiliation(s)
- Maria C Rodriguez
- Torrey Pines Institute for Molecular Studies, Port St. Lucie, FL, USA
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15
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Zhang Y, Muthana SM, Farnsworth D, Ludek O, Adams K, Barchi JJ, Gildersleeve JC. Enhanced epimerization of glycosylated amino acids during solid-phase peptide synthesis. J Am Chem Soc 2012; 134:6316-25. [PMID: 22390544 PMCID: PMC3324660 DOI: 10.1021/ja212188r] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Glycopeptides are extremely useful for basic research and clinical applications, but access to structurally defined glycopeptides is limited by the difficulties in synthesizing this class of compounds. In this study, we demonstrate that many common peptide coupling conditions used to prepare O-linked glycopeptides result in substantial amounts of epimerization at the α position. In fact, epimerization resulted in up to 80% of the non-natural epimer, indicating that it can be the major product in some reactions. Through a series of mechanistic studies, we demonstrate that the enhanced epimerization relative to nonglycosylated amino acids is due to a combination of factors, including a faster rate of epimerization, an energetic preference for the unnatural epimer over the natural epimer, and a slower overall rate of peptide coupling. In addition, we demonstrate that use of 2,4,6-trimethylpyridine (TMP) as the base in peptide couplings produces glycopeptides with high efficiency and low epimerization. The information and improved reaction conditions will facilitate the preparation of glycopeptides as therapeutic compounds and vaccine antigens.
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Affiliation(s)
- Yalong Zhang
- Chemical Biology Laboratory, National Cancer Institute, 376 Boyles Street, Building 376, Frederick, Maryland, 21702
| | - Saddam M. Muthana
- Chemical Biology Laboratory, National Cancer Institute, 376 Boyles Street, Building 376, Frederick, Maryland, 21702
| | - David Farnsworth
- Chemical Biology Laboratory, National Cancer Institute, 376 Boyles Street, Building 376, Frederick, Maryland, 21702
| | - Olaf Ludek
- Chemical Biology Laboratory, National Cancer Institute, 376 Boyles Street, Building 376, Frederick, Maryland, 21702
| | - Kristie Adams
- Chemical Biology Laboratory, National Cancer Institute, 376 Boyles Street, Building 376, Frederick, Maryland, 21702
| | - Joseph J. Barchi
- Chemical Biology Laboratory, National Cancer Institute, 376 Boyles Street, Building 376, Frederick, Maryland, 21702
| | - Jeffrey C. Gildersleeve
- Chemical Biology Laboratory, National Cancer Institute, 376 Boyles Street, Building 376, Frederick, Maryland, 21702
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16
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Kiyonaka S, Zhou SL, Hamachi I. pH-Responsive Phase Transition of Supramolecular Hydrogel Consisting of Glycosylated Amino Acetate and Carboxylic Acid Derivative. Supramol Chem 2011. [DOI: 10.1080/10610270310001605115] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Shigeki Kiyonaka
- a Department of Chemistry and Biochemistry , Kyushu University , Graduate School of Engineering, 812-8581, Fukuoka, Japan
| | - Shan-Lai Zhou
- a Department of Chemistry and Biochemistry , Kyushu University , Graduate School of Engineering, 812-8581, Fukuoka, Japan
| | - Itaru Hamachi
- c Institute for Fundamental Research of Organic Chemistry (IFOC), Kyushu University , 812-8581, Fukuoka, Japan
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17
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Arsequell G, Rosa M, Mayato C, Dorta RL, Gonzalez-Nunez V, Barreto-Valer K, Marcelo F, Calle LP, Vázquez JT, Rodríguez RE, Jiménez-Barbero J, Valencia G. Synthesis, biological evaluation and structural characterization of novel glycopeptide analogues of nociceptin N/OFQ. Org Biomol Chem 2011; 9:6133-42. [PMID: 21773621 DOI: 10.1039/c1ob05197k] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
To examine if the biological activity of the N/OFQ peptide, which is the native ligand of the pain-related and viable drug target NOP receptor, could be modulated by glycosylation and if such effects could be conformationally related, we have synthesized three N/OFQ glycopeptide analogues, namely: [Thr(5)-O-α-D-GalNAc-N/OFQ] (glycopeptide 1), [Ser(10)-O-α-D-GalNAc]-N/OFQ (glycopeptide 2) and [Ser(10)-O-β-D-GlcNAc]-N/OFQ] (glycopeptide 3). They were tested for biological activity in competition binding assays using the zebrafish animal model in which glycopeptide 2 exhibited a slightly improved binding affinity, whereas glycopeptide 1 showed a remarkably reduced binding affinity compared to the parent compound and glycopeptide 3. The structural analysis of these glycopeptides and the parent N/OFQ peptide by NMR and circular dichroism indicated that their aqueous solutions are mainly populated by random coil conformers. However, in membrane mimic environments a certain proportion of the molecules of all these peptides exist as α-helix structures. Interestingly, under these experimental conditions, glycopeptide 1 (glycosylated at Thr-5) exhibited a population of folded hairpin-like geometries. From these facts it is tempting to speculate that nociceptin analogues showing linear helical structures are more complementary and thus interact more efficiently with the native NOP receptor than folded structures, since glycopeptide 1 showed a significantly reduced binding affinity for the NOP receptor.
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Affiliation(s)
- Gemma Arsequell
- Instituto de Química Avanzada de Cataluña (IQAC-CSIC), Barcelona, Spain
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18
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Campo VL, Carvalho I, Allman S, Davis BG, Field RA. Chemical and chemoenzymatic synthesis of glycosyl-amino acids and glycopeptides related to Trypanosoma cruzi mucins. Org Biomol Chem 2007; 5:2645-57. [DOI: 10.1039/b707772f] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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20
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Schlummer S, Vetter R, Kuder N, Henkel A, Chen YX, Li YM, Kuhlmann J, Waldmann H. Influence of serine O-glycosylation or O-phosphorylation close to the vJun nuclear localisation sequence on nuclear import. Chembiochem 2006; 7:88-97. [PMID: 16345111 DOI: 10.1002/cbic.200500212] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Nuclear import triggered by the nuclear-localisation sequence (NLS) of the viral Jun (vJun) protein is mediated by phosphorylation of a serine close to the NLS. Since phosphorylation and glycosylation of serine residues are often in a reciprocal "yin-yang" relationship, we investigated whether glycosylation of this serine with O-linked N-acetylglucosamine (O-GlcNAc) would also regulate nuclear import via the vJun NLS. Peptides containing the vJun NLS with an adjacent O-phosphorylated, O-GlcNAc-functionalised or unmodified serine, and equipped with an N-terminal biotin or a 7-nitrobenz-2-oxa-1,3-diazolyl (NBD) fluorescent label, were synthesised on the solid phase by means of an Fmoc/Boc strategy and a Pd0-sensitive HYCRON linker. Fluorescence-polarisation measurements on the NBD-labelled peptides indicated that modification with phosphate or O-GlcNAc leads to a decrease in affinity to the import-mediating adapter protein, importin alpha, of about one order of magnitude compared to the unmodified NLS. Microinjection of biotinylated NLS peptide conjugated with fluorescently labelled avidin into NIH/3T3 and MDCK cells, revealed that avidin-unmodified-NLS peptide was rapidly imported into the nucleus. However, either phosphate or O-GlcNAc next to the NLS caused almost complete exclusion of the protein conjugate from nuclear import. These findings indicate that nuclear import by the vJun NLS might not be regulated by a "yin-yang" modification of an adjacent serine with phosphate or O-GlcNAc. Rather, negative regulation of binding between the polybasic NLS and importin by a negatively charged or a bulky, uncharged residue appears likely.
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Affiliation(s)
- Stefanie Schlummer
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
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21
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Fumoto M, Hinou H, Matsushita T, Kurogochi M, Ohta T, Ito T, Yamada K, Takimoto A, Kondo H, Inazu T, Nishimura SI. Molecular Transporter Between Polymer Platforms: Highly Efficient Chemoenzymatic Glycopeptide Synthesis by the Combined Use of Solid-Phase and Water-Soluble Polymer Supports. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200463065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Fumoto M, Hinou H, Matsushita T, Kurogochi M, Ohta T, Ito T, Yamada K, Takimoto A, Kondo H, Inazu T, Nishimura SI. Molecular Transporter Between Polymer Platforms: Highly Efficient Chemoenzymatic Glycopeptide Synthesis by the Combined Use of Solid-Phase and Water-Soluble Polymer Supports. Angew Chem Int Ed Engl 2005; 44:2534-7. [PMID: 15786520 DOI: 10.1002/anie.200463065] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masataka Fumoto
- Research Association for Biotechnology, Minato-ku, Tokyo 105-0003, Japan
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23
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Arihara R, Nakamura S, Hashimoto S. Direct and Stereoselective Synthesis of 2-Acetamido-2-deoxy-?-D-glycopyranosides by Using the Phosphite Method. Angew Chem Int Ed Engl 2005; 44:2245-9. [PMID: 15747388 DOI: 10.1002/anie.200461988] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ryoichi Arihara
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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24
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Arihara R, Nakamura S, Hashimoto S. Direct and Stereoselective Synthesis of 2-Acetamido-2-deoxy-?-D-glycopyranosides by Using the Phosphite Method. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200461988] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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26
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Carvalho I, Scheuerl SL, Ravindranathan Kartha KP, Field RA. Practical synthesis of the 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-beta-D-glucosides of Fmoc-serine and Fmoc-threonine and their benzyl esters. Carbohydr Res 2003; 338:1039-43. [PMID: 12706969 DOI: 10.1016/s0008-6215(03)00071-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Mercuric bromide-promoted glycosylation of Fmoc-Ser-OBn and Fmoc-Thr-OBn with 2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-alpha-D-glucopyranosyl chloride in refluxing 1,2-dichloroethane gave the corresponding beta-glycosides in good yields (64 and 62%, respectively). Direct coupling of the commercially available Fmoc-Ser-OH and Fmoc-Thr-OH carboxylic acids under similar conditions gave the corresponding beta-glycosides, possessing free carboxyl groups, in moderate yields (50 and 40%, respectively).
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Affiliation(s)
- Ivone Carvalho
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Brazil
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27
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Wittmann V, Lennartz D. Copper(II)‐Mediated Activation of Sugar Oxazolines: Mild and Efficient Synthesis of β‐Glycosides of
N
‐Acetylglucosamine. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200204)2002:8<1363::aid-ejoc1363>3.0.co;2-#] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Valentin Wittmann
- Institut für Organische Chemie, Johann Wolfgang Goethe‐Universität, Marie‐Curie‐Str. 11, 60439 Frankfurt am Main, Germany, Fax: (internat.) + 49‐(0)69/798‐29148
| | - Dirk Lennartz
- Institut für Organische Chemie, Johann Wolfgang Goethe‐Universität, Marie‐Curie‐Str. 11, 60439 Frankfurt am Main, Germany, Fax: (internat.) + 49‐(0)69/798‐29148
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28
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Fahmi NE, Golovine S, Wang B, Hecht SM. Studies toward the site specific incorporation of sugars into proteins: synthesis of glycosylated aminoacyl-tRNAs. Carbohydr Res 2001; 330:149-64. [PMID: 11217968 DOI: 10.1016/s0008-6215(00)00289-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A series of glycosylated serine derivatives was synthesized from peracetylated sugars and Fmoc-protected serine; these were chemically esterified with the tris-(tetrabutylammonium) salt of pdCpA. The fully protected and deprotected glycosylated aminoacyl pdCpAs were ligated enzymatically to an abbreviated tRNA (tRNA-C(OH)) to provide the title compounds that are key intermediates in the elaboration of glycoproteins using readthrough of a nonsense codon.
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Affiliation(s)
- N E Fahmi
- Department of Chemistry, University of Virginia, Charlottesville 22901, USA
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29
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Abstract
Despite the omnipresence of protein glycosylation in nature, little is known about how the attachment of carbohydrates affects peptide and protein activity. One reason is the lack of a straightforward method to access biologically relevant glycopeptides and glycoproteins. The isolation of homogeneous glycopeptides from natural sources is complicated by the heterogeneity of naturally occuring glycoproteins. It is chemical and chemoenzymatic synthesis that is meeting the challenge to solve this availability problem, thus playing a key role for the advancement of glycobiology. The current art of glycopeptide synthesis, albeit far from being routine, has reached a level of maturity that allows for the access to homogeneous and pure material for biological and medicinal research. Even the ambitious goal of the total synthesis of an entire glycoprotein is within reach. It is demonstrated that with the help of synthetic glycopeptides the effects of glycosylation on protein structure and function can be studied in molecular detail. For example, in immunology, synthetic (tumour-specific) glycopeptides can be used as immunogens to elicit a tumour-cell-specific immune response. Again, synthetic glycopeptides are an invaluable tool to determine the fine specificity of the immune response that can be mediated by both carbohydrate-specific B and T cells. Furthermore, selected examples for the use of synthetic glycopeptides as ligands of carbohydrate-binding proteins and as enzyme substrates or inhibitors are presented.
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Affiliation(s)
- O Seitz
- Department of Chemical Biology Max-Planck-Institut für molekulare Physiologie Otto-Hahn-Strasse 11, 44227 Dortmund, Germany.
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Sander J, Waldmann H. Enzymatic Protecting Group Techniques for Glyco- and Phosphopeptide Chemistry: Synthesis of a Glycophosphopeptide from Human Serum Response Factor. Chemistry 2000. [DOI: 10.1002/(sici)1521-3765(20000502)6:9<1564::aid-chem1564>3.0.co;2-q] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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Xia J, Piskorz CF, Locke RD, Chandrasekaran EV, Alderfer JL, Matta KL. An efficient synthesis of two monosulfated trisaccharides with the Galbeta1,3GlcNacbeta1,3Galbeta-O-allyl backbone. Bioorg Med Chem Lett 1999; 9:2941-6. [PMID: 10571152 DOI: 10.1016/s0960-894x(99)00507-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The GlcNAcbeta(1-->3) Gal linked disaccharide 7 was synthesized as key building blocks for the construction of target monosulfated trisaccharides 1 and 2 using oxazoline 3 as glycosyl donor promoted by BF3 x Et2O.
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Affiliation(s)
- J Xia
- Department of Molecular & Cellular Biophysics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
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32
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Kihlberg J, Elofsson M, Salvador LA. Direct synthesis of glycosylated amino acids from carbohydrate peracetates and Fmoc amino acids: solid-phase synthesis of biomedicinally interesting glycopeptides. Methods Enzymol 1997; 289:221-45. [PMID: 9353724 DOI: 10.1016/s0076-6879(97)89050-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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33
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34
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Pohl T, Waldmann H. Chemoenzymatic Synthesis of a Characteristic Phosphorylated and Glycosylated Peptide Fragment of the Large Subunit of Mammalian RNA Polymerase II. J Am Chem Soc 1997. [DOI: 10.1021/ja970709e] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Torsten Pohl
- Contribution from the Department of Organic Chemistry, University of Karlsruhe, Richard-Willstätter-Allee 2, D-76128 Karlsruhe, Germany
| | - Herbert Waldmann
- Contribution from the Department of Organic Chemistry, University of Karlsruhe, Richard-Willstätter-Allee 2, D-76128 Karlsruhe, Germany
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35
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Efficient synthesis of O-(2-acetamido-2-deoxy-β-d-glucopyranosyl)-ser/thr building blocks for spps of o-glcnac glycopeptides. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)01941-a] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Preparation of building blocks for glycopeptide synthesis by glycosylation of Fmoc amino acids having unprotected carboxyl groups. Tetrahedron 1995. [DOI: 10.1016/0040-4020(95)00224-v] [Citation(s) in RCA: 82] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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