1
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Wang S, Wicher B, Douat C, Maurizot V, Huc I. Domain Swapping in Abiotic Foldamers. Angew Chem Int Ed Engl 2024; 63:e202405091. [PMID: 38661252 DOI: 10.1002/anie.202405091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024]
Abstract
Foldamer sequences that adopt tertiary helix-turn-helix folds mediated by helix-helix hydrogen bonding in organic solvents have been previously reported. In an attempt to create genuine abiotic quaternary structures, i.e. assemblies of tertiary structures, new sequences were prepared that possess additional hydrogen bond donors at positions that may promote an association between the tertiary folds. However, a solid state structure and extensive solution state investigations by Nuclear Magnetic Resonance (NMR) and Circular Dichroism (CD) show that, instead of forming a quaternary structure, the tertiary folds assemble into stable domain-swapped dimer motifs. Domain swapping entails a complete reorganization of the arrays of hydrogen bonds and changes in relative helix orientation and handedness that can all be rationalized.
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Affiliation(s)
- Shuhe Wang
- Department of Pharmacy, Ludwig-Maximilians-Universität in Munich, Butenandtstr. 5-13, 81377, München, Germany
| | - Barbara Wicher
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, 3 Rokietnicka St., 60-806, Poznan, Poland
| | - Céline Douat
- Department of Pharmacy, Ludwig-Maximilians-Universität in Munich, Butenandtstr. 5-13, 81377, München, Germany
| | - Victor Maurizot
- CBMN (UMR 5248), Univ. Bordeaux, CNRS, Bordeaux INP, 2, Rue Robert Escarpit, 33600, Pessac, France
| | - Ivan Huc
- Department of Pharmacy, Ludwig-Maximilians-Universität in Munich, Butenandtstr. 5-13, 81377, München, Germany
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2
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Menke FS, Wicher B, Maurizot V, Huc I. Homochiral versus Heterochiral Dimeric Helical Foldamer Bundles: Chlorinated-Solvent-Dependent Self-Sorting. Angew Chem Int Ed Engl 2023; 62:e202217325. [PMID: 36625790 DOI: 10.1002/anie.202217325] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/11/2023]
Abstract
Aromatic oligoamide sequences programmed to fold into stable helical conformations were designed to display a linear array of hydrogen-bond donors and acceptors at their surface. Sequences were prepared by solid-phase synthesis. Solution 1 H NMR spectroscopic studies and solid-state crystallographic structures demonstrated the formation of stable hydrogen-bond-mediated dimeric helix bundles that could be either heterochiral (with a P and an M helix) or homochiral (with two P or two M helices). Formation of the hetero- or homochiral dimers could be driven quantitatively using different chlorinated solvents-exemplifying a remarkable case of either social or narcissistic chiral self-sorting or upon imposing absolute handedness to the helices to forbid PM species.
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Affiliation(s)
- Friedericke S Menke
- Department of Pharmacy, Ludwig-Maximilians-University of Munich, Butenandtstr. 5-13, 81377, München, Germany
| | - Barbara Wicher
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, 6 Grunwaldzka St., 60-780, Poznan, Poland
| | - Victor Maurizot
- CBMN (UMR 5248), Univ. Bordeaux, CNRS, Bordeaux INP, 2, Rue Robert Escarpit, 33600, Pessac, France
| | - Ivan Huc
- Department of Pharmacy, Ludwig-Maximilians-University of Munich, Butenandtstr. 5-13, 81377, München, Germany
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Wang J, Wicher B, Maurizot V, Huc I. Directing the Self-Assembly of Aromatic Foldamer Helices using Acridine Appendages and Metal Coordination. Chemistry 2022; 28:e202201345. [PMID: 35965255 PMCID: PMC9826129 DOI: 10.1002/chem.202201345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Indexed: 01/11/2023]
Abstract
Folded molecules provide complex interaction interfaces amenable to sophisticated self-assembly motifs. Because of their high conformational stability, aromatic foldamers constitute suitable candidates for the rational elaboration of self-assembled architectures. Several multiturn helical aromatic oligoamides have been synthesized that possess arrays of acridine appendages pointing in one or two directions. The acridine units were shown to direct self-assembly in the solid state via aromatic stacking leading to recurrent helix-helix association patterns under the form of discrete dimers or extended arrays. In the presence of Pd(II), metal coordination of the acridine units overwhelms other forces and generates new metal-mediated multihelical self-assemblies, including macrocycles. These observations demonstrate simple access to different types of foldamer-containing architectures, ranging from discrete objects to 1D and, by extension, 2D and 3D arrays.
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Affiliation(s)
- Jinhua Wang
- CBMN (UMR5248)Univ. Bordeaux – CNRS – IPBInstitut Européen de Chimie et Biologie2 rue Escarpit33600PessacFrance
| | - Barbara Wicher
- Department of Chemical Technology of DrugsPoznan University of Medical SciencesGrunwaldzka 660-780PoznanPoland
| | - Victor Maurizot
- CBMN (UMR5248)Univ. Bordeaux – CNRS – IPBInstitut Européen de Chimie et Biologie2 rue Escarpit33600PessacFrance
| | - Ivan Huc
- CBMN (UMR5248)Univ. Bordeaux – CNRS – IPBInstitut Européen de Chimie et Biologie2 rue Escarpit33600PessacFrance
- Department of PharmacyLudwig-Maximilians-UniversitätButenandtstrasse 5–1381377MünchenGermany
- Cluster of Excellence e-conversion85748GarchingGermany
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4
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Bindl D, Mandal PK, Allmendinger L, Huc I. Discrete Stacked Dimers of Aromatic Oligoamide Helices. Angew Chem Int Ed Engl 2021; 61:e202116509. [PMID: 34962351 PMCID: PMC9305948 DOI: 10.1002/anie.202116509] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Indexed: 12/03/2022]
Abstract
Tight binding was observed between the C‐terminal cross section of aromatic oligoamide helices in aqueous solution, leading to the formation of discrete head‐to‐head dimers in slow exchange on the NMR timescale with the corresponding monomers. The nature and structure of the dimers was evidenced by 2D NOESY and DOSY spectroscopy, mass spectrometry and X‐ray crystallography. The binding interface involves a large hydrophobic aromatic surface and hydrogen bonding. Dimerization requires that helices have the same handedness and the presence of a C‐terminal carboxy function. The protonation state of the carboxy group plays a crucial role, resulting in pH dependence of the association. Dimerization is also influenced by neighboring side chains and can be programmed to selectively produce heteromeric aggregates.
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Affiliation(s)
- Daniel Bindl
- LMU München: Ludwig-Maximilians-Universitat Munchen, Pharmacy, GERMANY
| | - Pradeep K Mandal
- LMU München: Ludwig-Maximilians-Universitat Munchen, Pharmacy, GERMANY
| | - Lars Allmendinger
- LMU München: Ludwig-Maximilians-Universitat Munchen, Pharmacy, GERMANY
| | - Ivan Huc
- Ludwig-Maximilians-Universitat Munchen, Pharmacy, Butenandtstraße 5 - 13, 81377, Munich, GERMANY
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Bindl D, Mandal PK, Allmendinger L, Huc I. Discrete Stacked Dimers of Aromatic Oligoamide Helices. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202116509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daniel Bindl
- LMU München: Ludwig-Maximilians-Universitat Munchen Pharmacy GERMANY
| | - Pradeep K. Mandal
- LMU München: Ludwig-Maximilians-Universitat Munchen Pharmacy GERMANY
| | - Lars Allmendinger
- LMU München: Ludwig-Maximilians-Universitat Munchen Pharmacy GERMANY
| | - Ivan Huc
- Ludwig-Maximilians-Universitat Munchen Pharmacy Butenandtstraße 5 - 13 81377 Munich GERMANY
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Matsumura K, Tateno K, Tsuchido Y, Kawai H. Spacer-Dependent Cooperativity of Helicity in Fluorescent Bishelical Foldamers Based on L-Shaped Dibenzopyrrolo[1,2-a][1,8]naphthyridine. Chempluschem 2021; 86:1421-1425. [PMID: 34636489 DOI: 10.1002/cplu.202100407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/21/2021] [Indexed: 12/21/2022]
Abstract
For the construction of helical foldamers composed of π-frameworks, the choice of appropriate π-π stacking units and π-spacers connecting them is important. The transfer of helicity between the minimal helix structural units is also an essential factor in the construction of homochiral helical foldamers. Tetramers 4 a-4 d, which have four L-shaped dibenzopyrrolo[1,2-a]naphthyridine units, were synthesized to investigate the interplay and cooperativity of the helical structures. Tetramer 4 a bridged with a biphenyl unit formed a homochiral bishelical structure with π-π stacking between the L-shaped units (3.3 Å), consisting only of (P,P)- and (M,M)-enantiomers without the (P,M)-diastereomer, owing to interplay through the axial chirality of biphenyl unit in the solid state. Similarly, in solution, thermodynamic stabilization of the two helix formations worked cooperatively to favor the bishelical form of 4 a. Furthermore, bishelical foldamer 4 a emitted intense fluorescence (Φ=0.86).
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Affiliation(s)
- Kotaro Matsumura
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Kotaro Tateno
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Yoshitaka Tsuchido
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Hidetoshi Kawai
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
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Atcher J, Mateus P, Kauffmann B, Rosu F, Maurizot V, Huc I. Large-Amplitude Conformational Changes in Self-Assembled Multi-Stranded Aromatic Sheets. Angew Chem Int Ed Engl 2021; 60:2574-2577. [PMID: 33156974 PMCID: PMC7898896 DOI: 10.1002/anie.202014670] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Indexed: 02/03/2023]
Abstract
The orchestration of ever larger conformational changes is made possible by the development of increasingly complex foldamers. Aromatic sheets, a rare motif in synthetic foldamer structures, have been designed so as to form discrete stacks of intercalated aromatic strands through the self‐assembly of two identical subunits. Ion‐mobility ESI‐MS confirms the formation of compact dimers. X‐ray crystallography reveals the existence of two distinct conformational dimeric states that require large changes to interconvert. Molecular dynamics simulation validates the stability of the two conformations and the possibility of their interconversion.
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Affiliation(s)
- Joan Atcher
- Department of Pharmacy and Center for Integrated Protein Science, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377, München, Germany.,Université de Bordeaux, CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Pedro Mateus
- Université de Bordeaux, CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Brice Kauffmann
- Université de Bordeaux, CNRS, Inserm, IECB (UMS 3033-US001), Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Frédéric Rosu
- Université de Bordeaux, CNRS, Inserm, IECB (UMS 3033-US001), Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Victor Maurizot
- Université de Bordeaux, CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Ivan Huc
- Department of Pharmacy and Center for Integrated Protein Science, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377, München, Germany
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Zwillinger M, Reddy PS, Wicher B, Mandal PK, Csékei M, Fischer L, Kotschy A, Huc I. Aromatic Foldamer Helices as α-Helix Extended Surface Mimetics. Chemistry 2020; 26:17366-17370. [PMID: 32910480 PMCID: PMC7839445 DOI: 10.1002/chem.202004064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Indexed: 12/15/2022]
Abstract
Helically folded aromatic oligoamide foldamers have a size and geometrical parameters very distinct from those of α-helices and are not obvious candidates for α-helix mimicry. Nevertheless, they offer multiple sites for attaching side chains. It was found that some arrays of side chains at the surface of an aromatic helix make it possible to mimic extended α-helical surfaces. Synthetic methods were developed to produce quinoline monomers suitably functionalized for solid phase synthesis. A dodecamer was prepared. Its crystal structure validated the initial design and showed helix bundling involving the α-helix-like interface. These results open up new uses of aromatic helices to recognize protein surfaces and to program helix bundling in water.
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Affiliation(s)
- Márton Zwillinger
- Servier Research Institute of Medicinal ChemistryZáhony utca 7.Budapest1031Hungary
- Hevesy György PhD School of ChemistryEötvös Loránd UniversityBudapestHungary
| | - Post Sai Reddy
- CNRS, Bordeaux Institut National PolytechniqueCBMN (UMR 5248)IECBUniversité de Bordeaux2 rue Robert Escarpit33600PessacFrance
- Department of Pharmacy and Center for Integrated Protein ScienceLudwig-Maximilians-UniversitätButenandtstr. 5–1381377MünchenGermany
| | - Barbara Wicher
- Department of Chemical Technology of DrugsPoznan University of Medical SciencesGrunwaldzka 660780PoznanPoland
| | - Pradeep K. Mandal
- Department of Pharmacy and Center for Integrated Protein ScienceLudwig-Maximilians-UniversitätButenandtstr. 5–1381377MünchenGermany
| | - Márton Csékei
- Servier Research Institute of Medicinal ChemistryZáhony utca 7.Budapest1031Hungary
| | - Lucile Fischer
- CNRS, Bordeaux Institut National PolytechniqueCBMN (UMR 5248)IECBUniversité de Bordeaux2 rue Robert Escarpit33600PessacFrance
| | - András Kotschy
- Servier Research Institute of Medicinal ChemistryZáhony utca 7.Budapest1031Hungary
| | - Ivan Huc
- Department of Pharmacy and Center for Integrated Protein ScienceLudwig-Maximilians-UniversitätButenandtstr. 5–1381377MünchenGermany
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Atcher J, Mateus P, Kauffmann B, Rosu F, Maurizot V, Huc I. Umfangreiche Konformationsänderungen in selbstassemblierten mehrsträngigen aromatischen Faltblättern. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202014670] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Joan Atcher
- Department of Pharmacy and Center for Integrated Protein Science Ludwig-Maximilians-Universität Butenandtstraße 5–13 81377 München Deutschland
- Université de Bordeaux CNRS, Bordeaux Institut National Polytechnique CBMN (UMR 5248) Institut Européen de Chimie et Biologie 2 rue Robert Escarpit 33600 Pessac Frankreich
| | - Pedro Mateus
- Université de Bordeaux CNRS, Bordeaux Institut National Polytechnique CBMN (UMR 5248) Institut Européen de Chimie et Biologie 2 rue Robert Escarpit 33600 Pessac Frankreich
| | - Brice Kauffmann
- Université de Bordeaux CNRS Inserm, IECB (UMS 3033 – US001) Institut Européen de Chimie et Biologie 2 rue Robert Escarpit 33600 Pessac Frankreich
| | - Frédéric Rosu
- Université de Bordeaux CNRS Inserm, IECB (UMS 3033 – US001) Institut Européen de Chimie et Biologie 2 rue Robert Escarpit 33600 Pessac Frankreich
| | - Victor Maurizot
- Université de Bordeaux CNRS, Bordeaux Institut National Polytechnique CBMN (UMR 5248) Institut Européen de Chimie et Biologie 2 rue Robert Escarpit 33600 Pessac Frankreich
| | - Ivan Huc
- Department of Pharmacy and Center for Integrated Protein Science Ludwig-Maximilians-Universität Butenandtstraße 5–13 81377 München Deutschland
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Kirinda VC, Schrage BR, Ziegler CJ, Hartley CS. ortho
‐Phenylene‐Based Macrocyclic Hydrocarbons Assembled Using Olefin Metathesis. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000950] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Viraj C. Kirinda
- Department of Chemistry & Biochemistry Miami University 45056 Oxford OH USA
| | | | | | - C. Scott Hartley
- Department of Chemistry & Biochemistry Miami University 45056 Oxford OH USA
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