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Eastwood JRB, Weisberg EI, Katz D, Zuckermann RN, Kirshenbaum K. Guidelines for designing peptoid structures: Insights from the
Peptoid Data Bank. Pept Sci (Hoboken) 2023. [DOI: 10.1002/pep2.24307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Affiliation(s)
| | | | - Dana Katz
- Department of Chemistry New York University New York New York USA
| | | | - Kent Kirshenbaum
- Department of Chemistry New York University New York New York USA
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2
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Shao L, Ma J, Prelesnik JL, Zhou Y, Nguyen M, Zhao M, Jenekhe SA, Kalinin SV, Ferguson AL, Pfaendtner J, Mundy CJ, De Yoreo JJ, Baneyx F, Chen CL. Hierarchical Materials from High Information Content Macromolecular Building Blocks: Construction, Dynamic Interventions, and Prediction. Chem Rev 2022; 122:17397-17478. [PMID: 36260695 DOI: 10.1021/acs.chemrev.2c00220] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Hierarchical materials that exhibit order over multiple length scales are ubiquitous in nature. Because hierarchy gives rise to unique properties and functions, many have sought inspiration from nature when designing and fabricating hierarchical matter. More and more, however, nature's own high-information content building blocks, proteins, peptides, and peptidomimetics, are being coopted to build hierarchy because the information that determines structure, function, and interfacial interactions can be readily encoded in these versatile macromolecules. Here, we take stock of recent progress in the rational design and characterization of hierarchical materials produced from high-information content blocks with a focus on stimuli-responsive and "smart" architectures. We also review advances in the use of computational simulations and data-driven predictions to shed light on how the side chain chemistry and conformational flexibility of macromolecular blocks drive the emergence of order and the acquisition of hierarchy and also on how ionic, solvent, and surface effects influence the outcomes of assembly. Continued progress in the above areas will ultimately usher in an era where an understanding of designed interactions, surface effects, and solution conditions can be harnessed to achieve predictive materials synthesis across scale and drive emergent phenomena in the self-assembly and reconfiguration of high-information content building blocks.
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Affiliation(s)
- Li Shao
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Jinrong Ma
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
| | - Jesse L Prelesnik
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Yicheng Zhou
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Mary Nguyen
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States.,Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Mingfei Zhao
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Samson A Jenekhe
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States.,Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Sergei V Kalinin
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Andrew L Ferguson
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Jim Pfaendtner
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States.,Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Christopher J Mundy
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States.,Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
| | - James J De Yoreo
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States.,Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
| | - François Baneyx
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States.,Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Chun-Long Chen
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States.,Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
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3
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Araszczuk AM, D'Amato A, Schettini R, Costabile C, Della Sala G, Pierri G, Tedesco C, De Riccardis F, Izzo I. Macrocyclic Triazolopeptoids: A Promising Class of Extended Cyclic Peptoids. Org Lett 2022; 24:7752-7756. [PMID: 36223077 DOI: 10.1021/acs.orglett.2c03062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Head-to-tail cyclization of linear oligoamides containing 4-benzylaminomethyl-1H-1,2,3-triazol-1-yl acetic acid monomers afforded a novel class of "extended macrocyclic peptoids". The identification of the conformation in solution for a cyclodimer and the X-ray crystal structure of a cyclic tetraamide are reported.
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Affiliation(s)
- Alicja M Araszczuk
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy
| | - Assunta D'Amato
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy
| | - Rosaria Schettini
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy
| | - Chiara Costabile
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy
| | - Giorgio Della Sala
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy
| | - Giovanni Pierri
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy
| | - Consiglia Tedesco
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy
| | - Francesco De Riccardis
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy
| | - Irene Izzo
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, via Giovanni Paolo II, 132, Fisciano, SA 84084, Italy
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4
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Herlan CN, Feser D, Schepers U, Bräse S. Bio-instructive materials on-demand - combinatorial chemistry of peptoids, foldamers, and beyond. Chem Commun (Camb) 2021; 57:11131-11152. [PMID: 34611672 DOI: 10.1039/d1cc04237h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Combinatorial chemistry allows for the rapid synthesis of large compound libraries for high throughput screenings in biology, medicinal chemistry, or materials science. Especially compounds from a highly modular design are interesting for the proper investigation of structure-to-activity relationships. Permutations of building blocks result in many similar but unique compounds. The influence of certain structural features on the entire structure can then be monitored and serve as a starting point for the rational design of potent molecules for various applications. Peptoids, a highly diverse class of bioinspired oligomers, suit perfectly for combinatorial chemistry. Their straightforward synthesis on a solid support using repetitive reaction steps ensures easy handling and high throughput. Applying this modular approach, peptoids are readily accessible, and their interchangeable side-chains allow for various structures. Thus, peptoids can easily be tuned in their solubility, their spatial structure, and, consequently, their applicability in various fields of research. Since their discovery, peptoids have been applied as antimicrobial agents, artificial membranes, molecular transporters, and much more. Studying their three-dimensional structure, various foldamers with fascinating, unique properties were discovered. This non-comprehensive review will state the most interesting discoveries made over the past years and arouse curiosity about what may come.
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Affiliation(s)
- Claudine Nicole Herlan
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann von Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
| | - Dominik Feser
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann von Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Ute Schepers
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann von Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.,Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz Haber Weg 6, 76131 Karlsruhe, Germany
| | - Stefan Bräse
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann von Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany. .,Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz Haber Weg 6, 76131 Karlsruhe, Germany
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5
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Herlan CN, Sonnefeld A, Gloge T, Brückel J, Schlee LC, Muhle-Goll C, Nieger M, Bräse S. Macrocyclic Tetramers-Structural Investigation of Peptide-Peptoid Hybrids. Molecules 2021; 26:molecules26154548. [PMID: 34361700 PMCID: PMC8348019 DOI: 10.3390/molecules26154548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/23/2021] [Accepted: 07/24/2021] [Indexed: 11/16/2022] Open
Abstract
Outstanding affinity and specificity are the main characteristics of peptides, rendering them interesting compounds for basic and medicinal research. However, their biological applicability is limited due to fast proteolytic degradation. The use of mimetic peptoids overcomes this disadvantage, though they lack stereochemical information at the α-carbon. Hybrids composed of amino acids and peptoid monomers combine the unique properties of both parent classes. Rigidification of the backbone increases the affinity towards various targets. However, only little is known about the spatial structure of such constrained hybrids. The determination of the three-dimensional structure is a key step for the identification of new targets as well as the rational design of bioactive compounds. Herein, we report the synthesis and the structural elucidation of novel tetrameric macrocycles. Measurements were taken in solid and solution states with the help of X-ray scattering and NMR spectroscopy. The investigations made will help to find diverse applications for this new, promising compound class.
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Affiliation(s)
- Claudine Nicole Herlan
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
| | - Anna Sonnefeld
- Institute for Biological Interfaces 4, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (A.S.); (T.G.); (C.M.-G.)
| | - Thomas Gloge
- Institute for Biological Interfaces 4, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (A.S.); (T.G.); (C.M.-G.)
| | - Julian Brückel
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
| | - Luisa Chiara Schlee
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
| | - Claudia Muhle-Goll
- Institute for Biological Interfaces 4, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (A.S.); (T.G.); (C.M.-G.)
| | - Martin Nieger
- Department of Chemistry, University of Helsinki, P.O. Box 55 (A.I. Virtasen aukio 1), FIN-00014 Helsinki, Finland;
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
- Institute of Biological and Chemical Systems—Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Correspondence:
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6
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Hurley MFD, Northrup JD, Ge Y, Schafmeister CE, Voelz VA. Metal Cation-Binding Mechanisms of Q-Proline Peptoid Macrocycles in Solution. J Chem Inf Model 2021; 61:2818-2828. [PMID: 34125519 DOI: 10.1021/acs.jcim.1c00447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The rational design of foldable and functionalizable peptidomimetic scaffolds requires the concerted application of both computational and experimental methods. Recently, a new class of designed peptoid macrocycle incorporating spiroligomer proline mimics (Q-prolines) has been found to preorganize when bound by monovalent metal cations. To determine the solution-state structure of these cation-bound macrocycles, we employ a Bayesian inference method (BICePs) to reconcile enhanced-sampling molecular simulations with sparse ROESY correlations from experimental NMR studies to predict and design conformational and binding properties of macrocycles as functional scaffolds for peptidomimetics. Conformations predicted to be most populated in solution were then simulated in the presence of explicit cations to yield trajectories with observed binding events, revealing a highly preorganized all-trans amide conformation, whose formation is likely limited by the slow rate of cis/trans isomerization. Interestingly, this conformation differs from a racemic crystal structure solved in the absence of cation. Free energies of cation binding computed from distance-dependent potentials of mean force suggest Na+ has a higher affinity to the macrocycle than K+, with both cations binding much more strongly in acetonitrile than water. The simulated affinities are able to correctly rank the extent to which different macrocycle sequences exhibit preorganization in the presence of different metal cations and solvents, suggesting our approach is suitable for solution-state computational design.
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Affiliation(s)
- Matthew F D Hurley
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - Justin D Northrup
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - Yunhui Ge
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | | | - Vincent A Voelz
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
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7
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Herlan CN, Sommer K, Weis P, Nieger M, Bräse S. Structural Diversity of Peptoids: Tube-Like Structures of Macrocycles. Molecules 2020; 26:E150. [PMID: 33396246 PMCID: PMC7795174 DOI: 10.3390/molecules26010150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 02/07/2023] Open
Abstract
Peptoids, or poly-N-substituted glycines, are characterised by broad structural diversity. Compared to peptides, they are less restricted in rotation and lack backbone-derived H bonding. Nevertheless, certain side chains force the peptoid backbone into distinct conformations. Designable secondary structures like helices or nanosheets arise from this knowledge. Herein, we report the copper-catalysed alkyne-azide cycloaddition (CuAAC) of macrocycles to form innovative tube-like tricyclic peptoids, giving access to host-guest chemistry or storage applications. Different linker systems make the single tubes tuneable in size and enable modifications within the gap. An azobenzene linker, which is reversibly switchable in conformation, was successfully incorporated and allowed for light-triggered changes of the entire tricyclic structure.
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Affiliation(s)
- Claudine Nicole Herlan
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (K.S.)
| | - Katharina Sommer
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (K.S.)
| | - Patrick Weis
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, Kaiserstr. 12, 76131 Karlsruhe, Germany;
| | - Martin Nieger
- Department of Chemistry, University of Helsinki, P.O. Box 55 (A.I. Virtasen aukio 1), FIN-00014 Helsinki, Finland;
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (K.S.)
- Institute of Biological and Chemical Systems—Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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8
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Affiliation(s)
- Francesco De Riccardis
- Department of Chemistry and Biology “A. Zambelli”; University of Salerno; Via Giovani Paolo II, 132 84084 Fisciano SA Italy
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9
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Reese HR, Shanahan CC, Proulx C, Menegatti S. Peptide science: A "rule model" for new generations of peptidomimetics. Acta Biomater 2020; 102:35-74. [PMID: 31698048 DOI: 10.1016/j.actbio.2019.10.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 10/17/2019] [Accepted: 10/30/2019] [Indexed: 02/07/2023]
Abstract
Peptides have been heavily investigated for their biocompatible and bioactive properties. Though a wide array of functionalities can be introduced by varying the amino acid sequence or by structural constraints, properties such as proteolytic stability, catalytic activity, and phase behavior in solution are difficult or impossible to impart upon naturally occurring α-L-peptides. To this end, sequence-controlled peptidomimetics exhibit new folds, morphologies, and chemical modifications that create new structures and functions. The study of these new classes of polymers, especially α-peptoids, has been highly influenced by the analysis, computational, and design techniques developed for peptides. This review examines techniques to determine primary, secondary, and tertiary structure of peptides, and how they have been adapted to investigate peptoid structure. Computational models developed for peptides have been modified to predict the morphologies of peptoids and have increased in accuracy in recent years. The combination of in vitro and in silico techniques have led to secondary and tertiary structure design principles that mirror those for peptides. We then examine several important developments in peptoid applications inspired by peptides such as pharmaceuticals, catalysis, and protein-binding. A brief survey of alternative backbone structures and research investigating these peptidomimetics shows how the advancement of peptide and peptoid science has influenced the growth of numerous fields of study. As peptide, peptoid, and other peptidomimetic studies continue to advance, we will expect to see higher throughput structural analyses, greater computational accuracy and functionality, and wider application space that can improve human health, solve environmental challenges, and meet industrial needs. STATEMENT OF SIGNIFICANCE: Many historical, chemical, and functional relations draw a thread connecting peptides to their recent cognates, the "peptidomimetics". This review presents a comprehensive survey of this field by highlighting the width and relevance of these familial connections. In the first section, we examine the experimental and computational techniques originally developed for peptides and their morphing into a broader analytical and predictive toolbox. The second section presents an excursus of the structures and properties of prominent peptidomimetics, and how the expansion of the chemical and structural diversity has returned new exciting properties. The third section presents an overview of technological applications and new families of peptidomimetics. As the field grows, new compounds emerge with clear potential in medicine and advanced manufacturing.
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10
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Abstract
This Review is devoted to the chemistry of macrocyclic peptides having heterocyclic fragments in their structure. These motifs are present in many natural products and synthetic macrocycles designed against a particular biochemical target. Thiazole and oxazole are particularly common constituents of naturally occurring macrocyclic peptide molecules. This frequency of occurrence is because the thiazole and oxazole rings originate from cysteine, serine, and threonine residues. Whereas other heteroaryl groups are found less frequently, they offer many insightful lessons that range from conformational control to receptor/ligand interactions. Many options to develop new and improved technologies to prepare natural products have appeared in recent years, and the synthetic community has been pursuing synthetic macrocycles that have no precedent in nature. This Review attempts to summarize progress in this area.
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Affiliation(s)
- Ivan V Smolyar
- Department of Chemistry , Moscow State University , Leninskije Gory , 199991 Moscow , Russia
| | - Andrei K Yudin
- Davenport Research Laboratories, Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Valentine G Nenajdenko
- Department of Chemistry , Moscow State University , Leninskije Gory , 199991 Moscow , Russia
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11
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Zeng G, Qiu L, Wen T. Recent advances in crystallization and self‐assembly of polypeptoid polymers. POLYMER CRYSTALLIZATION 2019. [DOI: 10.1002/pcr2.10065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Guangjian Zeng
- South China Advanced Institute for Soft Matter Science and TechnologySouth China University of Technology Guangzhou China
| | - Lu Qiu
- South China Advanced Institute for Soft Matter Science and TechnologySouth China University of Technology Guangzhou China
| | - Tao Wen
- South China Advanced Institute for Soft Matter Science and TechnologySouth China University of Technology Guangzhou China
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12
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Spencer RK, Butterfoss GL, Edison JR, Eastwood JR, Whitelam S, Kirshenbaum K, Zuckermann RN. Stereochemistry of polypeptoid chain configurations. Biopolymers 2019; 110:e23266. [DOI: 10.1002/bip.23266] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/31/2019] [Accepted: 02/05/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Ryan K. Spencer
- Department of Chemistry University of California Irvine California
- Department of Chemical Engineering & Materials Science University of California Irvine California
| | - Glenn L. Butterfoss
- Center for Genomics and Systems Biology New York University Abu Dhabi Abu Dhabi United Arab Emirates
| | - John R. Edison
- Martin A Fisher School of Physics Brandeis University Waltham Massachusetts
- Molecular Foundry Lawrence Berkeley National Laboratory Berkeley California
| | | | - Stephen Whitelam
- Molecular Foundry Lawrence Berkeley National Laboratory Berkeley California
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13
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Schneider JA, Craven TW, Kasper AC, Yun C, Haugbro M, Briggs EM, Svetlov V, Nudler E, Knaut H, Bonneau R, Garabedian MJ, Kirshenbaum K, Logan SK. Design of Peptoid-peptide Macrocycles to Inhibit the β-catenin TCF Interaction in Prostate Cancer. Nat Commun 2018; 9:4396. [PMID: 30352998 PMCID: PMC6199279 DOI: 10.1038/s41467-018-06845-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 09/21/2018] [Indexed: 12/19/2022] Open
Abstract
New chemical inhibitors of protein-protein interactions are needed to propel advances in molecular pharmacology. Peptoids are peptidomimetic oligomers with the capability to inhibit protein-protein interactions by mimicking protein secondary structure motifs. Here we report the in silico design of a macrocycle primarily composed of peptoid subunits that targets the β-catenin:TCF interaction. The β-catenin:TCF interaction plays a critical role in the Wnt signaling pathway which is over-activated in multiple cancers, including prostate cancer. Using the Rosetta suite of protein design algorithms, we evaluate how different macrocycle structures can bind a pocket on β-catenin that associates with TCF. The in silico designed macrocycles are screened in vitro using luciferase reporters to identify promising compounds. The most active macrocycle inhibits both Wnt and AR-signaling in prostate cancer cell lines, and markedly diminishes their proliferation. In vivo potential is demonstrated through a zebrafish model, in which Wnt signaling is potently inhibited.
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Affiliation(s)
- Jeffrey A Schneider
- Departments of Urology, New York University School of Medicine, New York, NY, 10016, USA
| | - Timothy W Craven
- Department of Chemistry, New York University, New York, NY, 10003, USA
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, 10003, USA
| | - Amanda C Kasper
- Department of Chemistry, New York University, New York, NY, 10003, USA
| | - Chi Yun
- Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY, 10016, USA
| | - Michael Haugbro
- Department of Chemistry, New York University, New York, NY, 10003, USA
| | - Erica M Briggs
- Departments of Urology, New York University School of Medicine, New York, NY, 10016, USA
- Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY, 10016, USA
| | - Vladimir Svetlov
- Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY, 10016, USA
- Howard Hughes Medical Institute, New York University School of Medicine, New York, NY, 10016, USA
| | - Evgeny Nudler
- Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY, 10016, USA
- Howard Hughes Medical Institute, New York University School of Medicine, New York, NY, 10016, USA
| | - Holger Knaut
- Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY, 10016, USA
| | - Richard Bonneau
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, 10003, USA
| | - Michael J Garabedian
- Departments of Urology, New York University School of Medicine, New York, NY, 10016, USA
- Microbiology, New York University School of Medicine, New York, NY, 10016, USA
| | - Kent Kirshenbaum
- Department of Chemistry, New York University, New York, NY, 10003, USA.
| | - Susan K Logan
- Departments of Urology, New York University School of Medicine, New York, NY, 10016, USA.
- Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY, 10016, USA.
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14
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Schettini R, Costabile C, Della Sala G, Iuliano V, Tedesco C, Izzo I, De Riccardis F. Cation-Induced Molecular Switching Based on Reversible Modulation of Peptoid Conformational States. J Org Chem 2018; 83:12648-12663. [DOI: 10.1021/acs.joc.8b01990] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Rosaria Schettini
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II, 132, Fisciano, Salerno 84084, Italy
| | - Chiara Costabile
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II, 132, Fisciano, Salerno 84084, Italy
| | - Giorgio Della Sala
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II, 132, Fisciano, Salerno 84084, Italy
| | - Veronica Iuliano
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II, 132, Fisciano, Salerno 84084, Italy
| | - Consiglia Tedesco
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II, 132, Fisciano, Salerno 84084, Italy
| | - Irene Izzo
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II, 132, Fisciano, Salerno 84084, Italy
| | - Francesco De Riccardis
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II, 132, Fisciano, Salerno 84084, Italy
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D'Amato A, Della Sala G, Izzo I, Costabile C, Masuda Y, De Riccardis F. Cyclic Octamer Peptoids: Simplified Isosters of Bioactive Fungal Cyclodepsipeptides. Molecules 2018; 23:molecules23071779. [PMID: 30029532 PMCID: PMC6100324 DOI: 10.3390/molecules23071779] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 07/13/2018] [Accepted: 07/14/2018] [Indexed: 12/17/2022] Open
Abstract
Cyclic peptoids have recently emerged as an important class of bioactive scaffolds with unique conformational properties and excellent metabolic stabilities. In this paper, we describe the design and synthesis of novel cyclic octamer peptoids as simplified isosters of mycotoxin depsipeptides bassianolide, verticilide A1, PF1022A and PF1022B. We also examine their complexing abilities in the presence of sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (TFPB) salt and explore their general insecticidal activity. Finally, we discuss the possible relationship between structural features of free and Na⁺-complexed cyclic octamer peptoids and bioactivities in light of conformational isomerism, a crucial factor affecting cyclic peptoids' biomimetic potentials.
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Affiliation(s)
- Assunta D'Amato
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Giorgio Della Sala
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Irene Izzo
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Chiara Costabile
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Yuichi Masuda
- Graduate School of Bioresources, Mie University, 1577 Kurimamachiya-cho, Tsu 514-8507, Japan.
| | - Francesco De Riccardis
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
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Abstract
Over the past two decades, developing medical applications for peptides has, and continues to be a highly active area of research. At present there are over 60 peptide-based drugs on the market and more than 140 in various stages of clinical trials. The interest in peptide-based therapeutics arises from their biocompatibility and their ability to form defined secondary and tertiary structures, resulting in a high selectivity for complex targets. However, there are significant challenges associated with the development of peptide-based therapeutics, namely peptides are readily metabolised in vivo. Peptoids are an emerging class of peptidomimetic and they offer an alternative to peptides. Peptoids are comprised of N-substituted glycines where side-chains are located on the nitrogen atom of the amide backbone rather than the α-carbon as is the case in peptides. This change in structure confers a high degree of resistance to proteolytic degradation but the absence of any backbone hydrogen bonding means that peptoids exhibit a high degree of conformational flexibility. Cyclisation has been explored as one possible route to rigidify peptoid structures, making them more selective, and, therefore more desirable as potential therapeutics. This review outlines the various strategies that have been developed over the last decade to access new types of macrocyclic peptoids.
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Affiliation(s)
| | - Steven L. Cobb
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
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17
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D'Amato A, Volpe R, Vaccaro MC, Terracciano S, Bruno I, Tosolini M, Tedesco C, Pierri G, Tecilla P, Costabile C, Della Sala G, Izzo I, De Riccardis F. Cyclic Peptoids as Mycotoxin Mimics: An Exploration of Their Structural and Biological Properties. J Org Chem 2017; 82:8848-8863. [PMID: 28763612 DOI: 10.1021/acs.joc.7b00965] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cyclic peptoids have recently emerged as important examples of peptidomimetics for their interesting complexing properties and innate ability to permeate biological barriers. In the present contribution, experimental and theoretical data evidence the intricate conformational and stereochemical properties of five novel hexameric peptoids decorated with N-isopropyl, N-isobutyl, and N-benzyl substituents. Complexation studies by NMR, in the presence of sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (NaTFPB), theoretical calculations, and single-crystal X-ray analyses indicate that the conformationally stable host/guest metal adducts display architectural ordering comparable to that of the enniatins and beauvericin mycotoxins. Similarly to the natural depsipeptides, the synthetic oligolactam analogues show a correlation between ion transport abilities in artificial liposomes and cytotoxic activity on human cancer cell lines. The reported results demonstrate that the versatile cyclic peptoid scaffold, for its remarkable conformational and complexing properties, can morphologically mimic related natural products and elicit powerful biological activities.
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Affiliation(s)
| | | | | | | | | | - Massimo Tosolini
- Department of Chemical and Pharmaceutical Sciences, University of Trieste , Via Giorgieri, 1, Trieste 34127, Italy
| | | | | | - Paolo Tecilla
- Department of Chemical and Pharmaceutical Sciences, University of Trieste , Via Giorgieri, 1, Trieste 34127, Italy
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18
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Design and Synthesis of a Novel N-(1H-tetrazol-5-yl)methyl Cyclic Peptoid Using Nosyl-protected N-(1-trityl-1H-tetrazol-5-yl)methyl Substituted Glycine. Int J Pept Res Ther 2017. [DOI: 10.1007/s10989-017-9581-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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19
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D'Amato A, Schettini R, Della Sala G, Costabile C, Tedesco C, Izzo I, De Riccardis F. Conformational isomerism in cyclic peptoids and its specification. Org Biomol Chem 2017; 15:9932-9942. [DOI: 10.1039/c7ob02643a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Conformational chirality is an emerging and neglected property of rigid cyclic peptoids determining structural, catalytic, and biological properties. The present contribution analyzes its impact and sets the configurational rules to define it.
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Affiliation(s)
- A. D'Amato
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano
- Italy
| | - R. Schettini
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano
- Italy
| | - G. Della Sala
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano
- Italy
| | - C. Costabile
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano
- Italy
| | - C. Tedesco
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano
- Italy
| | - I. Izzo
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano
- Italy
| | - F. De Riccardis
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano
- Italy
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20
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Gangloff N, Ulbricht J, Lorson T, Schlaad H, Luxenhofer R. Peptoids and Polypeptoids at the Frontier of Supra- and Macromolecular Engineering. Chem Rev 2015; 116:1753-802. [DOI: 10.1021/acs.chemrev.5b00201] [Citation(s) in RCA: 190] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Niklas Gangloff
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Juliane Ulbricht
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Thomas Lorson
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Helmut Schlaad
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Robert Luxenhofer
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
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21
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Nevola L, Giralt E. Modulating protein-protein interactions: the potential of peptides. Chem Commun (Camb) 2015; 51:3302-15. [PMID: 25578807 DOI: 10.1039/c4cc08565e] [Citation(s) in RCA: 187] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Protein-protein interactions (PPIs) have emerged as important and challenging targets in chemical biology and medicinal chemistry. The main difficulty encountered in the discovery of small molecule modulators derives from the large contact surfaces involved in PPIs when compared with those that participate in protein-small molecule interactions. Because of their intrinsic features, peptides can explore larger surfaces and therefore represent a useful alternative to modulate PPIs. The use of peptides as therapeutics has been held back by their instability in vivo and poor cell internalization. However, more than 200 peptide drugs and homologous compounds (proteins or antibodies) containing peptide bonds are (or have been) on the market, and many alternatives are now available to tackle these limitations. This review will focus on the latest progress in the field, spanning from "lead" identification methods to binding evaluation techniques, through an update of the most successful examples described in the literature.
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Affiliation(s)
- Laura Nevola
- Institute for Research in Biomedicine (IRB Barcelona), C/Baldiri Reixac 10, 08028 Barcelona, Spain.
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22
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Wang G, Peng L, Zheng Y, Gao Y, Wu X, Ren T, Gao C, Han J. Novel triethylamine catalyzed S → O acetyl migration reaction to generate candidate thiols for construction of topological and functional sulfur-containing polymers. RSC Adv 2015. [DOI: 10.1039/c4ra09842k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Various sulphur-containing monomers and polymer materials transformed from different epoxy compounds.
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Affiliation(s)
- Gang Wang
- Key Laboratory of Marine New Materials and Related Technology
- Zhejiang Key Laboratory of Marine Materials and Protection Technology
- Ningbo Institute of Material Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
| | - Li Peng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Yaochen Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Yanqin Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Xuedong Wu
- Key Laboratory of Marine New Materials and Related Technology
- Zhejiang Key Laboratory of Marine Materials and Protection Technology
- Ningbo Institute of Material Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
| | - Tianhui Ren
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Jin Han
- Key Laboratory of Marine New Materials and Related Technology
- Zhejiang Key Laboratory of Marine Materials and Protection Technology
- Ningbo Institute of Material Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
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23
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Culf AS, Čuperlović-Culf M, Léger DA, Decken A. Small head-to-tail macrocyclic α-peptoids. Org Lett 2014; 16:2780-3. [PMID: 24797336 DOI: 10.1021/ol501102b] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A convenient and efficient methodology for the head-to-tail macrocyclization of small 3-mer, 4-mer, and 5-mer α-peptoid acids (9-, 12-, and 15-atom N-substituted glycine oligomers) is described. The cyclic trimer has a ccc amide sequence in the crystal structure, whereas the tetramer has ctct and the pentamer has ttccc stereochemistry. NMR analysis reveals rigid structures in solution. These synthetic macrocycles may prove useful in medicinal and materials applications.
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Affiliation(s)
- Adrian S Culf
- Atlantic Cancer Research Institute , 35 Providence Street, Moncton, NB E1C 8X3, Canada
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24
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Levine PM, Craven TW, Bonneau R, Kirshenbaum K. Semisynthesis of Peptoid–Protein Hybrids by Chemical Ligation at Serine. Org Lett 2014; 16:512-5. [DOI: 10.1021/ol4033978] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | | | - Richard Bonneau
- Courant
Institute of Mathematical Sciences, Department of Computer Science, New York University, New York, New York 10012, United States
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25
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Kölmel DK, Jung N, Bräse S. Azides – Diazonium Ions – Triazenes: Versatile Nitrogen-rich Functional Groups. Aust J Chem 2014. [DOI: 10.1071/ch13533] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
For more than 100 years, nitrogen-rich compounds such as azides, diazonium ions, and triazenes have proved to be extremely valuable. Because these functional groups can be easily introduced into various substrates, they are frequently used nowadays. More importantly, they can be converted into a great number of other functional groups. The scope of this article is thus to summarize possible synthetic routes for the formation of these functional groups as well as to highlight some of the most prominent applications of these exciting moieties in chemical biology and combinatorial chemistry. Many of the most famous name reactions such as the Staudinger reduction, Staudinger ligation, Sandmeyer reaction, Wallach reaction, Mitsunobu reaction, Huisgen reaction, Balz–Schiemann reaction, Meerwein arylation, Pschorr reaction or Gomberg–Bachmann reaction are covered.
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26
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Vollrath SBL, Hu C, Bräse S, Kirshenbaum K. Peptoid nanotubes: an oligomer macrocycle that reversibly sequesters water via single-crystal-to-single-crystal transformations. Chem Commun (Camb) 2013; 49:2317-9. [PMID: 23399863 DOI: 10.1039/c3cc37163h] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly thermostable peptoid cyclo-octamer can reversibly accommodate and release water molecules from central channels formed by the macrocycles in a crystalline array. We report the first single-crystal-to-single-crystal transformation for a peptidomimetic oligomer.
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Affiliation(s)
- Sidonie B L Vollrath
- Dept. of Chemistry, New York University, 100 Washington Sq., New York, NY 10003, USA
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27
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Sun J, Zuckermann RN. Peptoid polymers: a highly designable bioinspired material. ACS NANO 2013; 7:4715-32. [PMID: 23721608 DOI: 10.1021/nn4015714] [Citation(s) in RCA: 307] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Bioinspired polymeric materials are attracting increasing attention due to significant advantages over their natural counterparts: the ability to precisely tune their structures over a broad range of chemical and physical properties, increased stability, and improved processability. Polypeptoids, a promising class of bioinspired polymer based on a N-substituted glycine backbone, have a number of unique properties that bridge the material gap between proteins and bulk polymers. Peptoids combine the sequence specificity of biopolymers with the simpler intra/intermolecular interactions and robustness of traditional synthetic polymers. They are highly designable because hundreds of chemically diverse side chains can be introduced from simple building blocks. Peptoid polymers can be prepared by two distinct synthetic techniques offering access to two material subclasses: (1) automated solid-phase synthesis which enables precision sequence control and near absolute monodispersity up to chain lengths of ~50 monomers, and (2) a classical polymerization approach which allows access to higher molecular weights and larger-scale yields, but with less control over length and sequence. This combination of facile synthetic approaches makes polypeptoids a highly tunable, rapid polymer prototyping platform to investigate new materials that are intermediate between proteins and bulk polymers, in both their structure and their properties. In this paper, we review the methods to synthesize peptoid polymers and their applications in biomedicine and nanoscience, as both sequence-specific materials and as bulk polymers.
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Affiliation(s)
- Jing Sun
- Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
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28
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Luxenhofer R, Fetsch C, Grossmann A. Polypeptoids: A perfect match for molecular definition and macromolecular engineering? ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26687] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Robert Luxenhofer
- Functional Polymer Materials; Chair of Chemical Technology of Materials Synthesis; Department of Chemistry and Pharmacy, Julius-Maximilian, University of Würzburg; 97070 Würzburg Germany
| | - Corinna Fetsch
- Functional Polymer Materials; Chair of Chemical Technology of Materials Synthesis; Department of Chemistry and Pharmacy, Julius-Maximilian, University of Würzburg; 97070 Würzburg Germany
| | - Arlett Grossmann
- Professur für Makromolekulare Chemie; Department Chemie; Technische Universität Dresden; 01062 Dresden Germany
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29
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Levine PM, Craven TW, Bonneau R, Kirshenbaum K. Chemoselective fragment condensation between peptide and peptidomimetic oligomers. Org Biomol Chem 2013; 11:4142-6. [DOI: 10.1039/c3ob40606g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Vollrath SBL, Fürniss D, Schepers U, Bräse S. Amphiphilic peptoid transporters – synthesis and evaluation. Org Biomol Chem 2013; 11:8197-201. [DOI: 10.1039/c3ob41139g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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31
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Cardenal C, Vollrath SBL, Schepers U, Bräse S. Synthesis of Functionalized Glutamine- and Asparagine-Type Peptoids - Scope and Limitations. Helv Chim Acta 2012. [DOI: 10.1002/hlca.201200451] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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