1
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Aftahy K, Arrasate P, Bashkirov PV, Kuzmin PI, Maurizot V, Huc I, Frolov VA. Molecular Sensing and Manipulation of Protein Oligomerization in Membrane Nanotubes with Bolaamphiphilic Foldamers. J Am Chem Soc 2023; 145:25150-25159. [PMID: 37948300 PMCID: PMC10682987 DOI: 10.1021/jacs.3c05753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 11/12/2023]
Abstract
Adaptive and reversible self-assembly of supramolecular protein structures is a fundamental characteristic of dynamic living matter. However, the quantitative detection and assessment of the emergence of mesoscale protein complexes from small and dynamic oligomeric precursors remains highly challenging. Here, we present a novel approach utilizing a short membrane nanotube (sNT) pulled from a planar membrane reservoir as nanotemplates for molecular reconstruction, manipulation, and sensing of protein oligomerization and self-assembly at the mesoscale. The sNT reports changes in membrane shape and rigidity caused by membrane-bound proteins as variations of the ionic conductivity of the sNT lumen. To confine oligomerization to the sNT, we have designed and synthesized rigid oligoamide foldamer tapes (ROFTs). Charged ROFTs incorporate into the planar and sNT membranes, mediate protein binding to the membranes, and, driven by the luminal electric field, shuttle the bound proteins between the sNT and planar membranes. Using Annexin-V (AnV) as a prototype, we show that the sNT detects AnV oligomers shuttled into the nanotube by ROFTs. Accumulation of AnV on the sNT induces its self-assembly into a curved lattice, restricting the sNT geometry and inhibiting the material uptake from the reservoir during the sNT extension, leading to the sNT fission. By comparing the spontaneous and ROFT-mediated entry of AnV into the sNT, we reveal how intricate membrane curvature sensing by small AnV oligomers controls the lattice self-assembly. These results establish sNT-ROFT as a powerful tool for molecular reconstruction and functional analyses of protein oligomerization and self-assembly, with broad application to various membrane processes.
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Affiliation(s)
- Kathrin Aftahy
- Department
of Pharmacy, Ludwig-Maximilians-Universität
München, Munich 81377, Germany
| | - Pedro Arrasate
- Biofisika
Institute (CSIC, UPV/EHU), University of
the Basque Country, Leioa 48940, Spain
- Department
of Biochemistry and Molecular Biology, University
of the Basque Country, Leioa 48940, Spain
| | - Pavel V. Bashkirov
- Research
Institute for Systems Biology and Medicine, Moscow 117246, Russia
| | - Petr I. Kuzmin
- A.N.
Frumkin Institute of Physical Chemistry and Electrochemistry, Moscow 119071, Russia
| | - Victor Maurizot
- Univ. Bordeaux,
CNRS, Bordeaux Institut National Polytechnique, CBMN (UMR 5248), Pessac 33600, France
| | - Ivan Huc
- Department
of Pharmacy, Ludwig-Maximilians-Universität
München, Munich 81377, Germany
| | - Vadim A. Frolov
- Biofisika
Institute (CSIC, UPV/EHU), University of
the Basque Country, Leioa 48940, Spain
- Department
of Biochemistry and Molecular Biology, University
of the Basque Country, Leioa 48940, Spain
- Ikerbasque,
Basque Foundation for Science, Bilbao 48009, Spain
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2
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Zwillinger M, Fischer L, Sályi G, Szabó S, Csékei M, Huc I, Kotschy A. Isotope Ratio Encoding of Sequence-Defined Oligomers. J Am Chem Soc 2022; 144:19078-19088. [PMID: 36206533 DOI: 10.1021/jacs.2c08135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Information storage at the molecular level commonly entails encoding in the form of ordered sequences of different monomers and subsequent fragmentation and tandem mass spectrometry analysis to read this information. Recent approaches also include the use of mixtures of distinct molecules noncovalently bonded to one another. Here, we present an alternate isotope ratio encoding approach utilizing deuterium-labeled monomers to produce hundreds of oligomers endowed with unique isotope distribution patterns. Mass spectrometric recognition of these patterns then allowed us to directly readout encoded information with high fidelity. Specifically, we show that all 256 tetramers composed of four different monomers of identical constitution can be distinguished by their mass fingerprint using mono-, di-, tri-, and tetradeuterated building blocks. The method is robust to experimental errors and does not require the most sophisticated mass spectrometry instrumentation. Such isotope ratio-encoded oligomers may serve as tags that carry information, but the method mainly opens up the capability to write information, for example, about molecular identity, directly into a pure compound via its isotopologue distribution obviating the need for additional tagging and avoiding the use of mixtures of different molecules.
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Affiliation(s)
- Márton Zwillinger
- Servier Research Institute of Medicinal Chemistry, H-1031 Budapest, Hungary.,Hevesy György PhD School of Chemistry, Eötvös Loránd University, H-1053 Budapest, Hungary
| | - Lucile Fischer
- CBMN UMR5248, University of Bordeaux-CNRS-IPB, F-33600 Pessac, France
| | - Gergő Sályi
- Servier Research Institute of Medicinal Chemistry, H-1031 Budapest, Hungary
| | - Soma Szabó
- Servier Research Institute of Medicinal Chemistry, H-1031 Budapest, Hungary
| | - Márton Csékei
- Servier Research Institute of Medicinal Chemistry, H-1031 Budapest, Hungary
| | - Ivan Huc
- Department of Pharmacy and Center for Integrated Protein Science, Ludwig-Maximilians-University, D-81377 Munich, Germany
| | - András Kotschy
- Servier Research Institute of Medicinal Chemistry, H-1031 Budapest, Hungary
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3
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Bindl D, Mandal PK, Huc I. Generalizing the Aromatic δ‐Amino Acid Foldamer Helix. Chemistry 2022; 28:e202200538. [PMID: 35332956 PMCID: PMC9322652 DOI: 10.1002/chem.202200538] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Indexed: 11/12/2022]
Abstract
A series of aromatic oligoamide foldamer sequences containing different proportions of three δ‐amino acids derived from quinoline, pyridine, and benzene and possessing varying flexibility, for example due to methylene bridges, were synthesized. Crystallographic structures of two key sequences and 1H NMR data in water concur to show that a canonical aromatic helix fold prevails in almost all cases and that helix stability critically depends on the ratio between rigid and flexible units. Notwithstanding subtle variations of curvature, i. e. the numbers of units per turn, the aromatic δ‐peptide helix is therefore shown to be general and tolerant of a great number of sp3 centers. We also demonstrate canonical helical folding upon alternating two monomers that do not promote folding when taken separately: folding occurs with two methylenes between every other unit, not with one methylene between every unit. These findings highlight that a fine‐tuning of helix handedness inversion kinetics, curvature, and side chain positioning in aromatic δ‐peptidic foldamers can be realized by systematically combining different yet compatible δ‐amino acids.
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Affiliation(s)
- Daniel Bindl
- Department of Pharmacy and Center for Integrated Protein Science Ludwig-Maximilians-Universität Butenandtstraße 5–13 München 81377 Germany
| | - Pradeep K. Mandal
- Department of Pharmacy and Center for Integrated Protein Science Ludwig-Maximilians-Universität Butenandtstraße 5–13 München 81377 Germany
| | - Ivan Huc
- Department of Pharmacy and Center for Integrated Protein Science Ludwig-Maximilians-Universität Butenandtstraße 5–13 München 81377 Germany
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4
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Bindl D, Heinemann E, Mandal PK, Huc I. Quantitative helix handedness bias through a single H vs. CH 3 stereochemical differentiation. Chem Commun (Camb) 2021; 57:5662-5665. [PMID: 33972976 DOI: 10.1039/d1cc01452h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A novel chiral aromatic δ-amino acid building block was shown to fully induce handedness in quinoline oligoamide foldamers with the possibility of further increasing the bias by combining multiples of these units in the same sequence. Through its incorporation within the helix, both N- and C-termini are still accessible for further functionalisation.
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Affiliation(s)
- Daniel Bindl
- Department of Pharmacy and Center for Integrated Protein Science, Ludwig-Maximilians-Universität, Butenandtstraße 5-13, München 81377, Germany.
| | - Elisabeth Heinemann
- Department of Pharmacy and Center for Integrated Protein Science, Ludwig-Maximilians-Universität, Butenandtstraße 5-13, München 81377, Germany.
| | - Pradeep K Mandal
- Department of Pharmacy and Center for Integrated Protein Science, Ludwig-Maximilians-Universität, Butenandtstraße 5-13, München 81377, Germany.
| | - Ivan Huc
- Department of Pharmacy and Center for Integrated Protein Science, Ludwig-Maximilians-Universität, Butenandtstraße 5-13, München 81377, Germany.
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5
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Seedorf T, Kirschning A, Solga D. Natural and Synthetic Oligoarylamides: Privileged Structures for Medical Applications. Chemistry 2021; 27:7321-7339. [PMID: 33481284 PMCID: PMC8251530 DOI: 10.1002/chem.202005086] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Indexed: 12/13/2022]
Abstract
The term "privileged structure" refers to a single molecular substructure or scaffold that can serve as a starting point for high-affinity ligands for more than one receptor type. In this report, a hitherto overlooked group of privileged substructures is addressed, namely aromatic oligoamides, for which there are natural models in the form of cystobactamids, albicidin, distamycin A, netropsin, and others. The aromatic and heteroaromatic core, together with a flexible selection of substituents, form conformationally well-defined scaffolds capable of specifically binding to conformationally well-defined regions of biomacromolecules such as helices in proteins or DNA often by acting as helices mimics themselves. As such, these aromatic oligoamides have already been employed to inhibit protein-protein and nucleic acid-protein interactions. This article is the first to bring together the scattered knowledge about aromatic oligoamides in connection with biomedical applications.
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Affiliation(s)
- Tim Seedorf
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum, (BMWZ)Leibniz Universität HannoverSchneiderberg 1B30167HannoverGermany
| | - Andreas Kirschning
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum, (BMWZ)Leibniz Universität HannoverSchneiderberg 1B30167HannoverGermany
| | - Danny Solga
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum, (BMWZ)Leibniz Universität HannoverSchneiderberg 1B30167HannoverGermany
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6
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Aksakal R, Mertens C, Soete M, Badi N, Du Prez F. Applications of Discrete Synthetic Macromolecules in Life and Materials Science: Recent and Future Trends. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004038. [PMID: 33747749 PMCID: PMC7967060 DOI: 10.1002/advs.202004038] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/22/2020] [Indexed: 05/19/2023]
Abstract
In the last decade, the field of sequence-defined polymers and related ultraprecise, monodisperse synthetic macromolecules has grown exponentially. In the early stage, mainly articles or reviews dedicated to the development of synthetic routes toward their preparation have been published. Nowadays, those synthetic methodologies, combined with the elucidation of the structure-property relationships, allow envisioning many promising applications. Consequently, in the past 3 years, application-oriented papers based on discrete synthetic macromolecules emerged. Hence, material science applications such as macromolecular data storage and encryption, self-assembly of discrete structures and foldamers have been the object of many fascinating studies. Moreover, in the area of life sciences, such structures have also been the focus of numerous research studies. Here, it is aimed to highlight these recent applications and to give the reader a critical overview of the future trends in this area of research.
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Affiliation(s)
- Resat Aksakal
- Polymer Chemistry Research GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent UniversityKrijgslaan 281 S4‐bisGhentB‐9000Belgium
| | - Chiel Mertens
- Polymer Chemistry Research GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent UniversityKrijgslaan 281 S4‐bisGhentB‐9000Belgium
| | - Matthieu Soete
- Polymer Chemistry Research GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent UniversityKrijgslaan 281 S4‐bisGhentB‐9000Belgium
| | - Nezha Badi
- Polymer Chemistry Research GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent UniversityKrijgslaan 281 S4‐bisGhentB‐9000Belgium
| | - Filip Du Prez
- Polymer Chemistry Research GroupCentre of Macromolecular Chemistry (CMaC)Department of Organic and Macromolecular ChemistryGhent UniversityKrijgslaan 281 S4‐bisGhentB‐9000Belgium
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7
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Wang J, Wicher B, Maurizot V, Huc I. Oligo-Quinolylene-Vinylene Foldamers. Chemistry 2021; 27:1031-1038. [PMID: 32881144 PMCID: PMC7839515 DOI: 10.1002/chem.202003559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/01/2020] [Indexed: 01/26/2023]
Abstract
Quinoline based aromatic amide foldamers are known to adopt stable folded conformations. We have developed a synthetic approach to produce similar oligomers where all amide bonds, or part of them, have been replaced by an isosteric vinylene group. The results of solution and solid state structural studies show that oligomers exclusively containing vinylene linkages are not well folded, and adopt predominantly flat conformations. In contrast, a vinylene segment flanked by helical oligoamides also folds in a helix, albeit with a slightly lower curvature. The presence of vinylene functions also result in an extension of π-conjugation across the oligomer that may change charge transport properties. Altogether, these results pave the way to foldamers in which both structural control and specific electronic properties may be engineered.
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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 Pharmacy and Cluster e-conversionLudwig-Maximilians-UniversiätButenandtstrasse 5–1381377MünchenGermany
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8
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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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9
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Bayer P, Matena A, Beuck C. NMR Spectroscopy of supramolecular chemistry on protein surfaces. Beilstein J Org Chem 2020; 16:2505-2522. [PMID: 33093929 PMCID: PMC7554676 DOI: 10.3762/bjoc.16.203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 09/18/2020] [Indexed: 01/17/2023] Open
Abstract
As one of the few analytical methods that offer atomic resolution, NMR spectroscopy is a valuable tool to study the interaction of proteins with their interaction partners, both biomolecules and synthetic ligands. In recent years, the focus in chemistry has kept expanding from targeting small binding pockets in proteins to recognizing patches on protein surfaces, mostly via supramolecular chemistry, with the goal to modulate protein-protein interactions. Here we present NMR methods that have been applied to characterize these molecular interactions and discuss the challenges of this endeavor.
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Affiliation(s)
- Peter Bayer
- Structural and Medicinal Biochemistry, University of Duisburg-Essen, Universitätsstr. 1-5, 45141 Essen, Germany
| | - Anja Matena
- Structural and Medicinal Biochemistry, University of Duisburg-Essen, Universitätsstr. 1-5, 45141 Essen, Germany
| | - Christine Beuck
- Structural and Medicinal Biochemistry, University of Duisburg-Essen, Universitätsstr. 1-5, 45141 Essen, Germany
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10
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Di Costanzo L, Geremia S. Atomic Details of Carbon-Based Nanomolecules Interacting with Proteins. Molecules 2020; 25:E3555. [PMID: 32759758 PMCID: PMC7435792 DOI: 10.3390/molecules25153555] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 12/21/2022] Open
Abstract
Since the discovery of fullerene, carbon-based nanomolecules sparked a wealth of research across biological, medical and material sciences. Understanding the interactions of these materials with biological samples at the atomic level is crucial for improving the applications of nanomolecules and address safety aspects concerning their use in medicine. Protein crystallography provides the interface view between proteins and carbon-based nanomolecules. We review forefront structural studies of nanomolecules interacting with proteins and the mechanism underlying these interactions. We provide a systematic analysis of approaches used to select proteins interacting with carbon-based nanomolecules explored from the worldwide Protein Data Bank (wwPDB) and scientific literature. The analysis of van der Waals interactions from available data provides important aspects of interactions between proteins and nanomolecules with implications on functional consequences. Carbon-based nanomolecules modulate protein surface electrostatic and, by forming ordered clusters, could modify protein quaternary structures. Lessons learned from structural studies are exemplary and will guide new projects for bioimaging tools, tuning of intrinsically disordered proteins, and design assembly of precise hybrid materials.
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Affiliation(s)
- Luigi Di Costanzo
- Department of Agricultural Sciences, University of Naples Federico II, 100, 80055 Portici, Italy
| | - Silvano Geremia
- Centre of Excellence in Biocrystallography, Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy;
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11
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Hu X, Mandal PK, Kauffmann B, Huc I. Hybrid Sequences that Express both Aromatic Amide and α-Peptidic Folding Features. Chempluschem 2020; 85:1580-1586. [PMID: 32729681 PMCID: PMC7496704 DOI: 10.1002/cplu.202000416] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/05/2020] [Indexed: 01/28/2023]
Abstract
Foldamers combining aliphatic and aromatic main-chain units often produce atypical structures that cannot easily be accessed from purely aromatic or aliphatic sequences. We report solid-state evidence that sequences comprising α-amino acids and quinoline-based monomers adopt conformations that combine the folding propensities of both components. Foldamers 2 and 3 having an XQQ repeat motif (X=α-amino acid, Q=quinoline) were synthesized. Crystals of 2 (X=Phe, Q with an anionic side chain) obtained from water revealed an aromatic helix where amide groups belonging to the α-amino acids created a hydrogen-bond array typical of peptidic helices. Crystals of 3 (X=Ser, Q with a lipophilic side chain) obtained from organic solvents revealed a helix-turn-helix structure in which α-amino acid side chains interfere with main-chain hydrogen bonding. High sequence-dependency of the conformation is typical of peptides but is shown here to include aromatic folding features.
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Affiliation(s)
- Xiaobo Hu
- CBMN (UMR5248)Univ. Bordeaux-CNRS-IPBInstitut Européen de Chimie et Biologie2 rue Robert Escarpit33600PessacFrance
| | - Pradeep K. Mandal
- Department PharmazieCenter for Integrated Protein ScienceLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MünchenGermany
| | - Brice Kauffmann
- IECB (UMS3033)Univ. Bordeaux-CNRS-INSERMInstitut Européen de Chimie et Biologie2 rue Robert Escarpit33600PessacFrance
| | - Ivan Huc
- Department PharmazieCenter for Integrated Protein ScienceLudwig-Maximilians-Universität MünchenButenandtstr. 5–1381377MünchenGermany
- CBMN (UMR5248)Univ. Bordeaux-CNRS-IPBInstitut Européen de Chimie et Biologie2 rue Robert Escarpit33600PessacFrance
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12
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Sengupta S, Chandrasekaran S. Modifications of amino acids using arenediazonium salts. Org Biomol Chem 2019; 17:8308-8329. [DOI: 10.1039/c9ob01471c] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Aryl transfer reactions from arenediazonium salts have started to make their impact in chemical biology with initial forays in the arena of arylative modifications and bio-conjugations of amino acids, peptides and proteins.
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Affiliation(s)
- Saumitra Sengupta
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore
- India
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13
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Alex JM, Corvaglia V, Hu X, Engilberge S, Huc I, Crowley PB. Crystal structure of a protein–aromatic foldamer composite: macromolecular chiral resolution. Chem Commun (Camb) 2019; 55:11087-11090. [DOI: 10.1039/c9cc05330a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A protein–foldamer crystal structure illustrates protein assembly by a sulfonated aromatic oligoamide, and chiral resolution of the foldamer helix handedness.
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Affiliation(s)
- Jimi M. Alex
- School of Chemistry
- National University of Ireland
- Galway
- Ireland
| | - Valentina Corvaglia
- Universite de Bordeaux
- CNRS
- Bordeaux Institut National Polytechnique, CBMN (UMR 5248)
- Institut Europeen de Chimie et Biologie
- Pessac 33600
| | - Xiaobo Hu
- Universite de Bordeaux
- CNRS
- Bordeaux Institut National Polytechnique, CBMN (UMR 5248)
- Institut Europeen de Chimie et Biologie
- Pessac 33600
| | | | - Ivan Huc
- Universite de Bordeaux
- CNRS
- Bordeaux Institut National Polytechnique, CBMN (UMR 5248)
- Institut Europeen de Chimie et Biologie
- Pessac 33600
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