1
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Liu CZ, Zhang C, Li CG, Chen HB, Yang W, Li ZY, Hu ZY, Xu L, Zhai B, Li ZT. Benzoselenadiazole-Functionalized H-Bonded Arylamide Foldamers: Solvent-Responsive Properties and Helix Self-Assembly Directed by Chalcogen Bonding in Solid State. Chemistry 2024; 30:e202401150. [PMID: 38639722 DOI: 10.1002/chem.202401150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 04/20/2024]
Abstract
In this study, a series of H-bonded arylamide foldamers bearing benzoselenadiazole ends with solvent-responsive properties have been synthesized. In dichloromethane or dimethyl sulfoxide solvents, the molecules exhibit meniscus or linear structures, respectively, which can be attributed to the unique intramolecular hydrogen bonding behavior evidenced by 1D 1H NMR and 2D NOESY spectra. UV-vis spectroscopy experiments show that the absorption wavelength of H-bonded arylamide foldamers are significantly red-shifted due to the presence of benzoselenadiazole group. In addition, the crystal structures reveal that effective intermolecular dual Se ⋅ ⋅ ⋅ N interactions between benzoselenadiazole groups induce further assembly of the monomers. Remarkably, supramolecular linear and double helices structures are constructed under the synergistic induction of intramolecular hydrogen bonding and intermolecular chalcogen bonding. Additionally, 2D DOSY diffusion spectra and theoretical modelling based on density functional theory (DFT) are performed to explore the persistence of intermolecular Se ⋅ ⋅ ⋅ N interactions beyond the crystalline state.
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Affiliation(s)
- Chuan-Zhi Liu
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, 55 Pingyuan middle Road, Shangqiu, Henan, 476000, China
| | - Chi Zhang
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, 55 Pingyuan middle Road, Shangqiu, Henan, 476000, China
| | - Chang-Gen Li
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, 55 Pingyuan middle Road, Shangqiu, Henan, 476000, China
| | - Hui-Bin Chen
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, 55 Pingyuan middle Road, Shangqiu, Henan, 476000, China
| | - Wen Yang
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, 55 Pingyuan middle Road, Shangqiu, Henan, 476000, China
| | - Zhong-Yi Li
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, 55 Pingyuan middle Road, Shangqiu, Henan, 476000, China
| | - Zhi-Yuan Hu
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, 55 Pingyuan middle Road, Shangqiu, Henan, 476000, China
| | - Liang Xu
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, 221 Beisi Road, Shihezi, 832003, China
| | - Bin Zhai
- Engineering Research Centre for Optoelectronic Functional Materials of Henan Province, College of Chemistry and Chemical Engineering, Shangqiu Normal University, 55 Pingyuan middle Road, Shangqiu, Henan, 476000, China
| | - Zhan-Ting Li
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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2
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Pike SJ, Telford R, Male L. Reversible conformational switching of a photo-responsive ortho-azobenzene/2,6-pyridyldicarboxamide heterofoldamer. Org Biomol Chem 2023; 21:7717-7723. [PMID: 37565617 DOI: 10.1039/d3ob01137b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
We report on a convenient synthetic route to rapidly access a new photo-responsive ortho-azobenzene/2,6-pyridyldicarboxamide heterofoldamer. The adoption of a stable helical conformation has been established for this scaffold in both the solid state and in solution using single crystal X-ray diffraction and circular dichroism (CD) spectroscopy respectively. Reversible control over the stimuli-driven structural re-ordering of the supramolecular scaffold, from a stable helical conformation under non-irradiative conditions, to a less well-ordered state under irradiative conditions, has been identified. The robust nature of the responsive, conformational, molecular switching behaviour has been determined using UV/Vis, 1H NMR and CD spectroscopy. Minimal loss in the efficiency of the stimuli-driven, structural re-ordering processes of the foldamer scaffold is observed, even upon multiple cyclic treatments with irradiative/non-irradiative conditions.
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Affiliation(s)
- Sarah J Pike
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
- School of Chemistry and Biosciences, Faculty of Life Sciences, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK
| | - Richard Telford
- School of Chemistry and Biosciences, Faculty of Life Sciences, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK
| | - Louise Male
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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3
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Shah SKH, Modi U, Patel K, James A, N S, De S, Vasita R, Prabhakaran P. Site-selective post-modification of short α/γ hybrid foldamers: a powerful approach for molecular diversification towards biomedical applications. Biomater Sci 2023; 11:6210-6222. [PMID: 37526301 DOI: 10.1039/d3bm00766a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
The extensive research work in the exhilarating area of foldamers (artificial oligomers possessing well-defined conformation in solution) has shown them to be promising candidates in biomedical research and materials science. The post-modification approach is successful in peptides, proteins, and polymers to modulate their functions. To the best of our knowledge, site-selective post-modification of a foldamer affording molecules with different pendant functional groups within a molecular scaffold has not yet been reported. We demonstrate for the first time that late-stage site-selective functionalization of short hybrid oligomers is an efficient approach to afford molecules with diverse functional groups. In this article, we report the design and synthesis of hybrid peptides with repeating units of leucine (Leu) and 5-amino salicylic acid (ASA), regioselective post-modification, conformational analyses (based on solution-state NMR, circular dichroism and computational studies) and morphological studies of the peptide nanostructures. As a proof-of-concept, we demonstrate the applications of differently modified peptides as drug delivery agents, imaging probes, and anticancer agents. The novel feature of the work is that the difference in reactivity of two phenolic OH groups in short biomimetic peptides was utilized to achieve site-selective post-modification. It is challenging to apply the same approach to short α-peptides having a poor folding tendency, and their post-functionalization may considerably affect their conformation.
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Affiliation(s)
| | - Unnati Modi
- School of Life Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Karma Patel
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India.
| | - Anjima James
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, India
| | - Sreerag N
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India.
| | - Susmita De
- Department of Chemistry, University of Calicut, Calicut 673635, India
| | - Rajesh Vasita
- School of Life Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Panchami Prabhakaran
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India.
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4
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Xu L, Zhang F. FTIR study on the CO interactions of benzeneacetamide in solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 295:122601. [PMID: 36934598 DOI: 10.1016/j.saa.2023.122601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/26/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
The main attention of present work is to study how benzeneacetamide interacts with other molecules in organic solvents. The frequencies of CO groups in 18 solvents were obtained by using infrared spectroscopy. The empirical parameters of the solvents as the acceptor number (AN), the van der Waals interaction parameters (SVW) and the linear solvation energy relationships (LSER) were correlated with the frequencies of carbonyl stretching vibration (ν(CO)) of benzeneacetamide to estimate the contributions in intermolecular interactions. The results showed that solvent effects on the frequencies of CO stretching vibrations of benzeneacetamide were obvious. Self-association of alkanol leads to enhancement of O-H⋯O=C hydrogen bond strength and red-shift of the ν(CO) peak. The ν(CO) of benzeneacetamide is more vulnerable to the acidity of the hydrogen bond donor of the solvent. This research contributes to a thorough understanding of the molecular interactions and microstructures in the liquid mixtures.
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Affiliation(s)
- Liang Xu
- Zhejiang Academy of Forestry, Hangzhou 310023, Zhejiang, China
| | - Feiying Zhang
- Zhejiang Academy of Forestry, Hangzhou 310023, Zhejiang, China.
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5
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Roe WE, Warnock TMC, Knipe PC. A spirocyclic backbone accesses new conformational space in an extended, dipole-stabilized foldamer. Commun Chem 2023; 6:71. [PMID: 37069245 PMCID: PMC10110530 DOI: 10.1038/s42004-023-00868-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 03/24/2023] [Indexed: 04/19/2023] Open
Abstract
Most aromatic foldamers adopt uniform secondary structures, offering limited potential for the exploration of conformational space and the formation of tertiary structures. Here we report the incorporation of spiro bis-lactams to allow controlled rotation of the backbone of an iteratively synthesised foldamer. This enables precise control of foldamer shape along two orthogonal directions, likened to the aeronautical yaw and roll axes. XRD, NMR and computational data suggest that homo-oligomers adopt an extended right-handed helix with a pitch of over 30 Å, approximately that of B-DNA. Compatibility with extant foldamers to form hetero-oligomers is demonstrated, allowing greater structural complexity and function in future hybrid foldamer designs.
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Affiliation(s)
- William Edward Roe
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Belfast, BT9 5AG, UK
| | - Toyah Mary Catherine Warnock
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Belfast, BT9 5AG, UK
| | - Peter Clarke Knipe
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Belfast, BT9 5AG, UK.
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Boruah A, Roy A. Advances in hybrid peptide-based self-assembly systems and their applications. Biomater Sci 2022; 10:4694-4723. [PMID: 35899853 DOI: 10.1039/d2bm00775d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembly of peptides demonstrates a great potential for designing highly ordered, finely tailored supramolecular arrangements enriched with high specificity, improved efficacy and biological activity. Along with natural peptides, hybrid peptide systems composed of natural and chemically diverse unnatural amino acids have been used in various fields, including drug delivery, wound healing, potent inhibition of diseases, and prevention of biomaterial related diseases to name a few. In this review, we provide a brief outline of various methods that have been utilized for obtaining fascinating structures that create an avenue to reproduce a range of functions resulting from these folds. An overview of different self-assembled structures as well as their applications will also be provided. We believe that this review is very relevant to the current scenario and will cover conformations of hybrid peptides and resulting self-assemblies from the late 20th century through 2022. This review aims to be a comprehensive and reliable account of the hybrid peptide-based self-assembly owing to its enormous influence in understanding and mimicking biological processes.
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Affiliation(s)
- Alpana Boruah
- Applied Organic Chemistry Group, Chemical Sciences and Technology Division, Council of Scientific and Industrial Research-North East Institute of Science and Technology (CSIR-NEIST), Pulibor, Jorhat-785006, Assam, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Arup Roy
- Applied Organic Chemistry Group, Chemical Sciences and Technology Division, Council of Scientific and Industrial Research-North East Institute of Science and Technology (CSIR-NEIST), Pulibor, Jorhat-785006, Assam, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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7
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Liu C, Li F, Wang J, Zhao X, Zhang T, Huang X, Wu M, Hu Z, Liu X, Li Z. Self-assembly of Supramolecular Planar Macrocycle Driven by Intermolecular Halogen Bonding. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22080368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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8
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Abstract
In this highlight, we describe the construction of supramolecular single/double/triple-helical assemblies from small di/tri/tetrapeptides and their applications.
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Affiliation(s)
- Rajat Subhra Giri
- Department of Chemistry, Laboratory of Peptide and Amyloid Research, Indian Institute of Technology Guwahati, Assam-781039, India
| | - Bhubaneswar Mandal
- Department of Chemistry, Laboratory of Peptide and Amyloid Research, Indian Institute of Technology Guwahati, Assam-781039, India
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9
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Yoon H, Lee J, Kang P, Choi SH. Promotion of 11/9‐helical folding in α/β‐peptides containing β
2
‐homoalanine residue. Pept Sci (Hoboken) 2021. [DOI: 10.1002/pep2.24244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hyerim Yoon
- Department of Chemistry Yonsei University Seoul South Korea
| | - Jaeyeon Lee
- Department of Chemistry Yonsei University Seoul South Korea
| | - Philjae Kang
- Department of Chemistry Yonsei University Seoul South Korea
| | - Soo Hyuk Choi
- Department of Chemistry Yonsei University Seoul South Korea
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10
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Roy S, Giri RS, Dolai G, Mandal B. Role of side-chain and chirality of the amino acids on the supramolecular assemblies of dipeptides. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128877] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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11
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Sang P, Shi Y, Higbee P, Wang M, Abdulkadir S, Lu J, Daughdrill G, Chen J, Cai J. Rational Design and Synthesis of Right-Handed d-Sulfono-γ-AApeptide Helical Foldamers as Potent Inhibitors of Protein-Protein Interactions. J Org Chem 2020; 85:10552-10560. [PMID: 32700908 DOI: 10.1021/acs.joc.0c00996] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Novel unprecedented helical foldamers have been effectively designed and synthesized. The homogeneous right-handed d-sulfono-γ-AApeptides represent a new generation of unnatural helical peptidomimetics, which have similar folding conformation to α-peptides, making them an ideal molecular scaffold to design α-helical mimetics. As demonstrated with p53-MDM2 PPI as a model application, the right-handed d-sulfono-γ-AApeptides reveal much-enhanced binding affinity compared to the p53 peptide. The design of d-sulfono-γ-AApeptides may provide a new and alternative strategy to modulate protein-protein interactions.
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Affiliation(s)
- Peng Sang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, Florida 33620, United States
| | - Yan Shi
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, Florida 33620, United States
| | - Pirada Higbee
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, Florida 33620, United States
| | - Minghui Wang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, Florida 33620, United States
| | - Sami Abdulkadir
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, Florida 33620, United States
| | - Junhao Lu
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, Florida 33612, United States
| | - Gary Daughdrill
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, Florida 33620, United States
| | - Jiandong Chen
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, Florida 33612, United States
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 E. Fowler Ave., Tampa, Florida 33620, United States
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12
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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] [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-IPB, Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Pradeep K Mandal
- Department Pharmazie, Center for Integrated Protein Science, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
| | - Brice Kauffmann
- IECB (UMS3033), Univ. Bordeaux-CNRS-INSERM, Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Ivan Huc
- Department Pharmazie, Center for Integrated Protein Science, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
- CBMN (UMR5248), Univ. Bordeaux-CNRS-IPB, Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33600, Pessac, France
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Abstract
Enzymes are predominantly proteins able to effectively and selectively catalyze highly complex biochemical reactions in mild reaction conditions. Nevertheless, they are limited to the arsenal of reactions that have emerged during natural evolution in compliance with their intrinsic nature, three-dimensional structures and dynamics. They optimally work in physiological conditions for a limited range of reactions, and thus exhibit a low tolerance for solvent and temperature conditions. The de novo design of synthetic highly stable enzymes able to catalyze a broad range of chemical reactions in variable conditions is a great challenge, which requires the development of programmable and finely tunable artificial tools. Interestingly, over the last two decades, chemists developed protein secondary structure mimics to achieve some desirable features of proteins, which are able to interfere with the biological processes. Such non-natural oligomers, so called foldamers, can adopt highly stable and predictable architectures and have extensively demonstrated their attractiveness for widespread applications in fields from biomedical to material science. Foldamer science was more recently considered to provide original solutions to the de novo design of artificial enzymes. This review covers recent developments related to peptidomimetic foldamers with catalytic properties and the principles that have guided their design.
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Imani Z, Guillot R, Declerck V, Aitken DJ. Local versus Global Control of Helical Folding in β-Peptide Segments Using Hydrazino Turns. J Org Chem 2020; 85:6165-6171. [PMID: 32233505 DOI: 10.1021/acs.joc.0c00305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Rational control of the self-organization of β-peptides sequences to adopt regular secondary structures is an important challenge in peptidomimetic foldamer science. By replacing the N- and C-terminal residues of homooligomers of trans-2-aminocyclobutanecarboxylic acid (tACBC)n with N-aminoazetidine-2-carboxylic acid, an 8-helical topology is shown to dominate for sequences up to n = 7. This constitutes an atomic-level tool to override locally the preferred global 12-helix secondary structure of the corresponding tACBC homooligomers of the same length.
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Affiliation(s)
- Zeynab Imani
- Université Paris-Saclay, CNRS, ICMMO, 91405 Orsay, France
| | - Régis Guillot
- Université Paris-Saclay, CNRS, ICMMO, 91405 Orsay, France
| | | | - David J Aitken
- Université Paris-Saclay, CNRS, ICMMO, 91405 Orsay, France
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15
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Sang P, Shi Y, Lu J, Chen L, Yang L, Borcherds W, Abdulkadir S, Li Q, Daughdrill G, Chen J, Cai J. α-Helix-Mimicking Sulfono-γ-AApeptide Inhibitors for p53-MDM2/MDMX Protein-Protein Interactions. J Med Chem 2020; 63:975-986. [PMID: 31971801 PMCID: PMC7025332 DOI: 10.1021/acs.jmedchem.9b00993] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The use of peptidomimetic scaffolds is a promising strategy for the inhibition of protein-protein interactions (PPIs). Herein, we demonstrate that sulfono-γ-AApeptides can be rationally designed to mimic the p53 α-helix and inhibit p53-MDM2 PPIs. The best inhibitor, with Kd and IC50 values of 26 nM and 0.891 μM toward MDM2, respectively, is among the most potent unnatural peptidomimetic inhibitors disrupting the p53-MDM2/MDMX interaction. Using fluorescence polarization assays, circular dichroism, nuclear magnetic resonance spectroscopy, and computational simulations, we demonstrate that sulfono-γ-AApeptides adopt helical structures resembling p53 and competitively inhibit the p53-MDM2 interaction by binding to the hydrophobic cleft of MDM2. Intriguingly, the stapled sulfono-γ-AApeptides showed promising cellular activity by enhancing p53 transcriptional activity and inducing expression of MDM2 and p21. Moreover, sulfono-γ-AApeptides exhibited remarkable resistance to proteolysis, augmenting their biological potential. Our results suggest that sulfono-γ-AApeptides are a new class of unnatural helical foldamers that disrupt PPIs.
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Affiliation(s)
- Peng Sang
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , United States
| | - Yan Shi
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , United States
| | - Junhao Lu
- Department of Molecular Oncology , H. Lee Moffitt Cancer Center and Research Institute , 12902 Magnolia Drive , Tampa , Florida 33612 , United States
| | - Lihong Chen
- Department of Molecular Oncology , H. Lee Moffitt Cancer Center and Research Institute , 12902 Magnolia Drive , Tampa , Florida 33612 , United States
| | - Leixiang Yang
- Department of Molecular Oncology , H. Lee Moffitt Cancer Center and Research Institute , 12902 Magnolia Drive , Tampa , Florida 33612 , United States
| | - Wade Borcherds
- Department of Cell Biology, Microbiology and Molecular Biology , University of South Florida , Tampa , Florida 33620 , United States
| | - Sami Abdulkadir
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , United States
| | - Qi Li
- Department of Medical Oncology , Shuguang Hospital, Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Gary Daughdrill
- Department of Cell Biology, Microbiology and Molecular Biology , University of South Florida , Tampa , Florida 33620 , United States
| | - Jiandong Chen
- Department of Molecular Oncology , H. Lee Moffitt Cancer Center and Research Institute , 12902 Magnolia Drive , Tampa , Florida 33612 , United States
| | - Jianfeng Cai
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , United States
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16
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Liu CZ, Koppireddi S, Wang H, Zhang DW, Li ZT. Halogen bonding-driven formation of supramolecular macrocycles and double helix. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.02.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Arrata I, Grison CM, Coubrough HM, Prabhakaran P, Little MA, Tomlinson DC, Webb ME, Wilson AJ. Control of conformation in α-helix mimicking aromatic oligoamide foldamers through interactions between adjacent side-chains. Org Biomol Chem 2019; 17:3861-3867. [PMID: 30938392 DOI: 10.1039/c9ob00123a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The design, synthesis and structural characterization of non-natural oligomers that adopt well-defined conformations, so called foldamers, is a key objective in developing biomimetic 3D functional architectures. For the aromatic oligoamide foldamer family, use of interactions between side-chains to control conformation is underexplored. The current manuscript addresses this objective through the design, synthesis and conformational analyses of model dimers derived from 3-O-alkylated para-aminobenzoic acid monomers. The O-alkyl groups on these foldamers are capable of adopting syn- or anti-conformers through rotation around the Ar-CO/NH axes. In the syn-conformation this allows the foldamer to act as a topographical mimic of the α-helix whereby the O-alkyl groups mimic the spatial orientation of the i and i + 4 side-chains from the α-helix. Using molecular modelling and 2D NMR analyses, this work illustrates that covalent links and hydrogen-bonding interactions between side-chains can bias the conformation in favour of the α-helix mimicking syn-conformer, offering insight that may be more widely applied to control secondary structure in foldamers.
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Affiliation(s)
- Irene Arrata
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK.
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18
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Koppireddi S, Liu CZ, Wang H, Zhang DW, Li ZT. Halogen and hydrogen bonding-driven self-assembly of supramolecular macrocycles and double helices from hydrogen-bonded arylamide foldamers. CrystEngComm 2019. [DOI: 10.1039/c8ce02187b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Halogen bonding has been used to hold hydrogen bonded short aromatic amide foldamers to form 2 + 2 or 1 + 1 macrocycles.
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Affiliation(s)
- Satish Koppireddi
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200438
| | - Chuan-Zhi Liu
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200438
| | - Hui Wang
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200438
| | - Dan-Wei Zhang
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200438
| | - Zhan-Ting Li
- Department of Chemistry
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- and Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM)
- Fudan University
- Shanghai 200438
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19
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Massena CJ, Decato DA, Berryman OB. A Long-Lived Halogen-Bonding Anion Triple Helicate Accommodates Rapid Guest Exchange. Angew Chem Int Ed Engl 2018; 57:16109-16113. [PMID: 30324741 PMCID: PMC6449053 DOI: 10.1002/anie.201810415] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Indexed: 12/16/2022]
Abstract
Anion-templated helical structures are emerging as a dynamic and tractable class of supramolecules that exhibit anion-switchable self-assembly. We present the first kinetic studies of an anion helicate by utilizing halogen-bonding m-arylene-ethynylene oligomers. These ligands formed high-fidelity triple helicates in solution with surprisingly long lifetimes on the order of seconds even at elevated temperatures. We propose an associative ligand-exchange mechanism that proceeded slowly on the same timescale. In contrast, intrachannel anion exchange occurred rapidly within milliseconds or faster as determined by stopped-flow visible spectroscopy. Additionally, the helicate accommodated bromide in solution and the solid state, while the thermodynamic stability of the triplex favored larger halide ions (bromide≈iodide≫chloride). Taken together, we elucidate a new class of kinetically stable helicates. These anion-switchable triplexes maintain their architectures while accommodating fast intrachannel guest exchange.
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Affiliation(s)
- Casey J. Massena
- Department of Chemistry and Biochemistry University of Montana 32 Campus Drive, Missoula, MT 59812 (MT)
| | - Daniel A. Decato
- Department of Chemistry and Biochemistry University of Montana 32 Campus Drive, Missoula, MT 59812 (MT)
| | - Orion B. Berryman
- Department of Chemistry and Biochemistry University of Montana 32 Campus Drive, Missoula, MT 59812 (MT)
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20
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Massena CJ, Decato DA, Berryman OB. A Long‐Lived Halogen‐Bonding Anion Triple Helicate Accommodates Rapid Guest Exchange. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Casey J. Massena
- Department of Chemistry and Biochemistry University of Montana 32 Campus Drive Missoula MT 59812 USA
| | - Daniel A. Decato
- Department of Chemistry and Biochemistry University of Montana 32 Campus Drive Missoula MT 59812 USA
| | - Orion B. Berryman
- Department of Chemistry and Biochemistry University of Montana 32 Campus Drive Missoula MT 59812 USA
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21
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Declerck V, Aitken DJ. Strategic C to N Replacement in β-Peptides: Atomic Level Control of Helical Folding. J Org Chem 2018; 83:8793-8800. [DOI: 10.1021/acs.joc.8b01096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Valérie Declerck
- CP3A Organic Synthesis Group, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris−Saclay, Bât 420, 15 rue Georges Clemenceau, 91405 Orsay Cedex, France
| | - David J. Aitken
- CP3A Organic Synthesis Group, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris−Saclay, Bât 420, 15 rue Georges Clemenceau, 91405 Orsay Cedex, France
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22
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Dumonteil G, Bhattacharjee N, Angelici G, Roy O, Faure S, Jouffret L, Jolibois F, Perrin L, Taillefumier C. Exploring the Conformation of Mixed Cis–Trans α,β-Oligopeptoids: A Joint Experimental and Computational Study. J Org Chem 2018; 83:6382-6396. [DOI: 10.1021/acs.joc.8b00606] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Geoffrey Dumonteil
- Université Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France
| | - Nicholus Bhattacharjee
- Université de Toulouse-INSA-UPS, LPCNO, CNRS UMR 5215, 135 av Rangueil, F-31077, Toulouse, France
- Université de Lyon, Université Claude Bernard Lyon 1, CPE Lyon, INSA Lyon, ICBMS, CNRS UMR 5246, Equipe ITEMM, Bât Curien, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne, France
| | - Gaetano Angelici
- Université Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France
| | - Olivier Roy
- Université Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France
| | - Sophie Faure
- Université Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France
| | - Laurent Jouffret
- Université Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France
| | - Franck Jolibois
- Université de Toulouse-INSA-UPS, LPCNO, CNRS UMR 5215, 135 av Rangueil, F-31077, Toulouse, France
| | - Lionel Perrin
- Université de Lyon, Université Claude Bernard Lyon 1, CPE Lyon, INSA Lyon, ICBMS, CNRS UMR 5246, Equipe ITEMM, Bât Curien, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne, France
| | - Claude Taillefumier
- Université Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France
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23
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Chen L, Wang H, Zhang DW, Zhou Y, Li ZT. Pt⋯Pt and π–π interactions-induced pleated polymeric foldamers. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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24
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Ragab SS, Kassir AF, Guillot R, Scherrmann MC, Boddaert T, Aitken DJ. Cooperative 5- and 10-membered ring interactions in the 10-helix folding of oxetin homo-oligomers. Chem Commun (Camb) 2018; 54:1968-1971. [PMID: 29399690 DOI: 10.1039/c7cc09964a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Homo-oligomers of the natural product oxetin (cis-3-amino-2-oxetanecarboxylic acid) were prepared and their conformational behaviour studied in solution and solid state and by molecular modelling. The predominant secondary structure was a 10-helix, propiciously stabilized by a network of 5-membered ring H-bonds implicating ring oxygens and neighboring amide hydrogen atoms.
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Affiliation(s)
- Sherif S Ragab
- CP3A Organic Synthesis Group, ICMMO, UMR 8182, CNRS, Université Paris-Sud, Université Paris-Saclay, 15 Rue Georges Clemenceau, 91405 Orsay cedex, France.
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25
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Jeon HG, Lee HK, Lee S, Jeong KS. Foldamer-based helicate displaying reversible switching between two distinct conformers. Chem Commun (Camb) 2018; 54:5740-5743. [DOI: 10.1039/c8cc02758g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A foldamer-based double-stranded helicate displays reversible switching between two distinct helicate conformers in response to temperature.
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Affiliation(s)
- Hae-Geun Jeon
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Hyun Kyung Lee
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Seungwon Lee
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
| | - Kyu-Sung Jeong
- Department of Chemistry
- Yonsei University
- Seoul 03722
- Korea
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26
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Annala R, Suhonen A, Laakkonen H, Permi P, Nissinen M. Structural Tuning and Conformational Stability of Aromatic Oligoamide Foldamers. Chemistry 2017; 23:16671-16680. [PMID: 29105164 DOI: 10.1002/chem.201703985] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Indexed: 11/09/2022]
Abstract
A series of aromatic oligoamide foldamers with two or three pyridine-2,6-dicarboxamide units as their main folding motifs and varying aromatic building blocks as linkers have been synthetized to study the effects of the structural variation on the folding properties and conformational stability. Crystallographic studies showed that in the solid state the central linker unit either elongates the helices and more open S-shaped conformations, compresses the helices to more compact conformations, or acts as a rigid spacer separating the pyridine-2,6-dicarboxamide units, which for their part add the predictability of the conformational properties. Multidimensional NMR studies showed that, even in solution, foldamers show conformational stability and folded conformations comparable to the solid-state structures.
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Affiliation(s)
- Riia Annala
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla, P.O. Box 35, 40014 University of, Jyvaskyla, Finland
| | - Aku Suhonen
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla, P.O. Box 35, 40014 University of, Jyvaskyla, Finland
| | - Heikki Laakkonen
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla, P.O. Box 35, 40014 University of, Jyvaskyla, Finland
| | - Perttu Permi
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla, P.O. Box 35, 40014 University of, Jyvaskyla, Finland.,Department of Chemistry and Department of Biological and Environmental Sciences, Nanoscience Center, University of Jyvaskyla, P.O. Box 35, 40014 University of, Jyvaskyla, Finland
| | - Maija Nissinen
- Department of Chemistry, Nanoscience Center, University of Jyvaskyla, P.O. Box 35, 40014 University of, Jyvaskyla, Finland
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27
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Illa O, Olivares JA, Nolis P, Ortuño RM. The relevance of the relative configuration in the folding of hybrid peptides containing β-cyclobutane amino acids and γ-amino- l -proline residues. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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28
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Ikai T, Shimizu S, Kudo T, Maeda K, Kanoh S. Helical Folding of π-Conjugated Polymers Bearing Glucose-Linked Biphenyl Units in the Main Chain: Application to Circularly Polarized Luminescence Materials. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170122] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Tomoyuki Ikai
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192
| | - Sho Shimizu
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192
| | - Tomoya Kudo
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192
| | - Shigeyoshi Kanoh
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192
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29
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Hu T, Connor AL, Miller DP, Wang X, Pei Q, Liu R, He L, Zheng C, Zurek E, Lu ZL, Gong B. Helical Folding of Meta-Connected Aromatic Oligoureas. Org Lett 2017; 19:2666-2669. [DOI: 10.1021/acs.orglett.7b01005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ting Hu
- College
of Chemistry, Beijing Normal University, 100875 Beijing, China
| | - Alan L. Connor
- Department
of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Daniel P. Miller
- Department
of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Xiao Wang
- College
of Chemistry, Beijing Normal University, 100875 Beijing, China
| | - Qiang Pei
- College
of Chemistry, Beijing Normal University, 100875 Beijing, China
| | - Rui Liu
- College
of Chemistry, Beijing Normal University, 100875 Beijing, China
| | - Lan He
- College
of Chemistry, Beijing Normal University, 100875 Beijing, China
- National Institute for Food and Drug Control, Institute of Chemical Drug Control, TianTanXiLi 2, Beijing, 100050, China
| | - Chong Zheng
- Department
of Chemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
| | - Eva Zurek
- Department
of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Zhong-lin Lu
- College
of Chemistry, Beijing Normal University, 100875 Beijing, China
| | - Bing Gong
- College
of Chemistry, Beijing Normal University, 100875 Beijing, China
- Department
of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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30
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Awada H, Grison CM, Charnay-Pouget F, Baltaze JP, Brisset F, Guillot R, Robin S, Hachem A, Jaber N, Naoufal D, Yazbeck O, Aitken DJ. Conformational Effects through Hydrogen Bonding in a Constrained γ-Peptide Template: From Intraresidue Seven-Membered Rings to a Gel-Forming Sheet Structure. J Org Chem 2017; 82:4819-4828. [PMID: 28398045 DOI: 10.1021/acs.joc.7b00494] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A series of three short oligomers (di-, tri-, and tetramers) of cis-2-(aminomethyl)cyclobutane carboxylic acid, a γ-amino acid featuring a cyclobutane ring constraint, were prepared, and their conformational behavior was examined spectroscopically and by molecular modeling. In dilute solutions, these peptides showed a number of low-energy conformers, including ribbonlike structures pleated around a rarely observed series of intramolecular seven-membered hydrogen bonds. In more concentrated solutions, these interactions defer to an organized supramolecular assembly, leading to thermoreversible organogel formation notably for the tripeptide, which produced fibrillar xerogels. In the solid state, the dipeptide adopted a fully extended conformation featuring a one-dimensional network of intermolecularly H-bonded molecules stacked in an antiparallel sheet alignment. This work provides unique insight into the interplay between inter- and intramolecular H-bonded conformer topologies for the same peptide template.
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Affiliation(s)
- Hawraà Awada
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France.,Inorganic and Organometallic Coordination Chemistry Laboratory and Laboratory for Medicinal Chemistry and Natural Products, Faculty of Sciences (I) & PRASE-EDST, Lebanese University , Hadath, Lebanon
| | - Claire M Grison
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Florence Charnay-Pouget
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Jean-Pierre Baltaze
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
| | - François Brisset
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Régis Guillot
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Sylvie Robin
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France.,UFR Sciences Pharmaceutiques et Biologiques, Université Paris Descartes , 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Ali Hachem
- Inorganic and Organometallic Coordination Chemistry Laboratory and Laboratory for Medicinal Chemistry and Natural Products, Faculty of Sciences (I) & PRASE-EDST, Lebanese University , Hadath, Lebanon
| | - Nada Jaber
- Inorganic and Organometallic Coordination Chemistry Laboratory and Laboratory for Medicinal Chemistry and Natural Products, Faculty of Sciences (I) & PRASE-EDST, Lebanese University , Hadath, Lebanon
| | - Daoud Naoufal
- Inorganic and Organometallic Coordination Chemistry Laboratory and Laboratory for Medicinal Chemistry and Natural Products, Faculty of Sciences (I) & PRASE-EDST, Lebanese University , Hadath, Lebanon
| | - Ogaritte Yazbeck
- Inorganic and Organometallic Coordination Chemistry Laboratory and Laboratory for Medicinal Chemistry and Natural Products, Faculty of Sciences (I) & PRASE-EDST, Lebanese University , Hadath, Lebanon
| | - David J Aitken
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182, CNRS, Université Paris Sud, Université Paris Saclay , Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex, France
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31
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Madica K, Nadimpally KC, Sanjayan GJ. Novel silaproline (Sip)-incorporated close structural mimics of potent antidepressant peptide drug rapastinel (GLYX-13). Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Chen L, Wang H, Zhang DW, Zhou Y, Li ZT. Protonation-induced switching of pleated foldamers of diaminonaphthalene-bipyridinium polymers. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.02.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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33
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Abstract
Bio-inspired synthetic backbones leading to foldamers can provide effective biopolymer mimics with new and improved properties in a physiological environment, and in turn could serve as useful tools to study biology and lead to practical applications in the areas of diagnostics or therapeutics. Remarkable progress has been accomplished over the past 20 years with the discovery of many potent bioactive foldamers originating from diverse backbones and targeting a whole spectrum of bio(macro)molecules such as membranes, protein surfaces, and nucleic acids. These current achievements, future opportunities, and key challenges that remain are discussed in this article.
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34
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Ikai T, Awata S, Kudo T, Ishidate R, Maeda K, Kanoh S. Chiral stationary phases consisting of π-conjugated polymers bearing glucose-linked biphenyl units: reversible switching of resolution abilities based on a coil-to-helix transition. Polym Chem 2017. [DOI: 10.1039/c7py00804j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have succeeded in developing a novel chiral stationary phase that can reversibly switch resolution abilities based on a coil-to-helix transition in a column.
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Affiliation(s)
- Tomoyuki Ikai
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Seiya Awata
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Tomoya Kudo
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Ryoma Ishidate
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Shigeyoshi Kanoh
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
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35
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Demizu Y, Okitsu K, Doi M, Misawa T, Oba M, Tanaka M, Kurihara M. Influence of L-Leu to D-Leu Replacement on the Helical Secondary Structures of L-Leu-Aib-Based Dodecapeptides. ChemistrySelect 2016. [DOI: 10.1002/slct.201601493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yosuke Demizu
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| | - Koyo Okitsu
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences; Osaka 569-1094 Japan
| | - Takashi Misawa
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University; Nagasaki 852-8521 Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University; Nagasaki 852-8521 Japan
| | - Masaaki Kurihara
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
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36
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Romero E, Moussodia RO, Kriznik A, Wenger E, Acherar S, Jamart-Grégoire B. Spontaneous Self-Assembly of Fully Protected Ester 1:1 [α/α-N α-Bn-hydrazino] Pseudodipeptides into a Twisted Parallel β-Sheet in the Crystal State. J Org Chem 2016; 81:9037-9045. [PMID: 27627436 DOI: 10.1021/acs.joc.6b01680] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Previous studies have demonstrated that amidic α/β-pseudodipeptides, 1:1 [α/α-Nα-Bn-hydrazino], have the ability to fold via a succession of γ-turn (C7 pseudocycle) and hydrazinoturn in CDCl3 solution, their amide terminals enabling the formation of an intramolecular H-bond network. Despite their lack of a primary amide terminals allowing the formation of the hydrazinoturn, their ester counterparts 1-4 were proven to self-assemble into C6 and C7 pseudocycles by intramolecular H-bonds in solution state and into an uncommon twisted parallel β-sheet through intermolecular H-bonding in the crystal state to form a supramolecular helix, with eight molecules needed to complete a full 360° rotation. Such self-organization (with eight molecules) has only been observed in a specific α/α-pseudodipeptide, depsipeptide (Boc-Leu-Lac-OEt). Relying on IR absorption, NMR, X-ray diffraction, and CD analyses, the aim of this study was to demonstrate that stereoisomers of ester 1:1 [α/α-Nα-Bn-hydrazino] pseudodipeptides 1-4 are able to self-assemble into this β-helical structure. The absolute configuration of the asymmetric Cα-atom of the α-amino acid residue influences the left- or right-handed twist without changing the pitch of the formed helix.
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Affiliation(s)
- Eugénie Romero
- Laboratoire de Chimie Physique Macromoléculaire (LCPM), Université de Lorraine-CNRS, UMR 7375 , 1 rue Grandville, BP 20451, 54001 Nancy cedex, France
| | - Ralph-Olivier Moussodia
- Laboratoire de Chimie Physique Macromoléculaire (LCPM), Université de Lorraine-CNRS, UMR 7375 , 1 rue Grandville, BP 20451, 54001 Nancy cedex, France
| | - Alexandre Kriznik
- Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Université de Lorraine-CNRS, UMR 7365 and Service Commun de Biophysique Interactions Moléculaires (SCBIM), Université de Lorraine, FR3209, Biopôle de l'Université de Lorraine, Campus Biologie Santé - Faculté de Médecine , 9 Avenue de la Forêt de Haye, CS 50184, 54505 Vandœuvre-lès-Nancy, France
| | - Emmanuel Wenger
- Laboratoire de Crystallographie, Résonance Magnétique et Modélisations (CRM2), Université de Lorraine-CNRS, UMR 7036, Faculté des Sciences et Technologies , BP 70239, Boulevard des Aiguillettes, 54506 Vandœuvre-lès-Nancy cedex, France
| | - Samir Acherar
- Laboratoire de Chimie Physique Macromoléculaire (LCPM), Université de Lorraine-CNRS, UMR 7375 , 1 rue Grandville, BP 20451, 54001 Nancy cedex, France
| | - Brigitte Jamart-Grégoire
- Laboratoire de Chimie Physique Macromoléculaire (LCPM), Université de Lorraine-CNRS, UMR 7375 , 1 rue Grandville, BP 20451, 54001 Nancy cedex, France
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37
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Massena CJ, Wageling NB, Decato DA, Martin Rodriguez E, Rose AM, Berryman OB. A Halogen-Bond-Induced Triple Helicate Encapsulates Iodide. Angew Chem Int Ed Engl 2016; 55:12398-402. [PMID: 27411932 PMCID: PMC5155591 DOI: 10.1002/anie.201605440] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Indexed: 12/11/2022]
Abstract
The self-assembly of higher-order anion helicates in solution remains an elusive goal. Herein, we present the first triple helicate to encapsulate iodide in organic and aqueous media as well as the solid state. The triple helicate self-assembles from three tricationic arylethynyl strands and resembles a tubular anion channel lined with nine halogen bond donors. Eight strong iodine⋅⋅⋅iodide halogen bonds and numerous buried π-surfaces endow the triplex with remarkable stability, even at elevated temperatures. We suggest that the natural rise of a single-strand helix renders its linear halogen-bond donors non-convergent. Thus, the stringent linearity of halogen bonding is a powerful tool for the synthesis of multi-strand anion helicates.
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Affiliation(s)
- Casey J Massena
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA
| | - Nicholas B Wageling
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA
| | - Daniel A Decato
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA
| | - Enrique Martin Rodriguez
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA
| | - Ariana M Rose
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA
| | - Orion B Berryman
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Dr, Missoula, MT, 59812, USA.
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38
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Grison CM, Miles JA, Robin S, Wilson AJ, Aitken DJ. An α-Helix-Mimicking 12,13-Helix: Designed α/β/γ-Foldamers as Selective Inhibitors of Protein-Protein Interactions. Angew Chem Int Ed Engl 2016; 55:11096-100. [PMID: 27467859 PMCID: PMC5014220 DOI: 10.1002/anie.201604517] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 06/28/2016] [Indexed: 12/31/2022]
Abstract
A major current challenge in bioorganic chemistry is the identification of effective mimics of protein secondary structures that act as inhibitors of protein-protein interactions (PPIs). In this work, trans-2-aminocyclobutanecarboxylic acid (tACBC) was used as the key β-amino acid component in the design of α/β/γ-peptides to structurally mimic a native α-helix. Suitably functionalized α/β/γ-peptides assume an α-helix-mimicking 12,13-helix conformation in solution, exhibit enhanced proteolytic stability in comparison to the wild-type α-peptide parent sequence from which they are derived, and act as selective inhibitors of the p53/hDM2 interaction.
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Affiliation(s)
- Claire M Grison
- CP3A Organic Synthesis Group, ICMMO, CNRS, Université Paris Sud, Université Paris Saclay, 15 Rue George Clemenceau, 91405, Orsay Cedex, France
| | - Jennifer A Miles
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
- Astbury Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Sylvie Robin
- CP3A Organic Synthesis Group, ICMMO, CNRS, Université Paris Sud, Université Paris Saclay, 15 Rue George Clemenceau, 91405, Orsay Cedex, France
- UFR Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, 4 Avenue de l'Observatoire, 75270, Paris cedex 06, France
| | - Andrew J Wilson
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
- Astbury Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
| | - David J Aitken
- CP3A Organic Synthesis Group, ICMMO, CNRS, Université Paris Sud, Université Paris Saclay, 15 Rue George Clemenceau, 91405, Orsay Cedex, France.
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39
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Grison CM, Miles JA, Robin S, Wilson AJ, Aitken DJ. An α-Helix-Mimicking 12,13-Helix: Designed α/β/γ-Foldamers as Selective Inhibitors of Protein-Protein Interactions. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604517] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Claire M. Grison
- CP3A Organic Synthesis Group, ICMMO, CNRS; Université Paris Sud, Université Paris Saclay; 15 Rue George Clemenceau 91405 Orsay Cedex France
| | - Jennifer A. Miles
- School of Chemistry; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK
- Astbury Centre for Structural Molecular Biology; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK
| | - Sylvie Robin
- CP3A Organic Synthesis Group, ICMMO, CNRS; Université Paris Sud, Université Paris Saclay; 15 Rue George Clemenceau 91405 Orsay Cedex France
- UFR Sciences Pharmaceutiques et Biologiques; Université Paris Descartes; 4 Avenue de l'Observatoire 75270 Paris cedex 06 France
| | - Andrew J. Wilson
- School of Chemistry; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK
- Astbury Centre for Structural Molecular Biology; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK
| | - David J. Aitken
- CP3A Organic Synthesis Group, ICMMO, CNRS; Université Paris Sud, Université Paris Saclay; 15 Rue George Clemenceau 91405 Orsay Cedex France
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40
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Massena CJ, Wageling NB, Decato DA, Martin Rodriguez E, Rose AM, Berryman OB. A Halogen‐Bond‐Induced Triple Helicate Encapsulates Iodide. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605440] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Casey J. Massena
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
| | - Nicholas B. Wageling
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
| | - Daniel A. Decato
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
| | - Enrique Martin Rodriguez
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
| | - Ariana M. Rose
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
| | - Orion B. Berryman
- Department of Chemistry and Biochemistry University of Montana 32 Campus Dr Missoula MT 59812 USA
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41
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Butterfoss GL, Drew K, Renfrew PD, Kirshenbaum K, Bonneau R. Conformational preferences of peptide-peptoid hybrid oligomers. Biopolymers 2016; 102:369-78. [PMID: 24919990 DOI: 10.1002/bip.22516] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 06/04/2014] [Accepted: 06/08/2014] [Indexed: 11/07/2022]
Abstract
Peptomers are oligomeric molecules composed of both α-amino acids and N-substituted glycine monomers, thus creating a hybrid of peptide and peptoid units. Peptomers have been used in several applications such as antimicrobials, protease inhibitors, and antibody mimics. Despite the considerable promise of peptomers as chemically diverse molecular scaffolds, we know little about their conformational tendencies. This lack of knowledge limits the ability to implement computational approaches for peptomer design. Here we computationally evaluate the local structural propensities of the peptide-peptoid linkage. We find some general similarities between the peptide residue conformational preferences and the Ramachandran distribution of residues that precede proline in folded protein structures. However, there are notable differences. For example, several β-turn motifs are disallowed when the i+2 residue is also a peptoid monomer. Significantly, the lowest energy geometry, when dispersion forces are accounted for, corresponds to a "cis-Pro touch-turn" conformation, an unusual turn motif that has been observed at protein catalytic centers and binding sites. The peptomer touch-turn thus represents a useful design element for the construction of folded oligomers capable of molecular recognition and as modules in the assembly of structurally complex peptoid-protein hybrid macromolecules.
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Affiliation(s)
- Glenn L Butterfoss
- Center for Genomics and Systems Biology, New York University Abu Dhabi, P.O. Box, 129188, Abu Dhabi, United Arab Emirates
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42
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Kudo M, Carbajo López D, Maurizot V, Masu H, Tanatani A, Huc I. Synthesis and Conformational Analysis of Quinoline-Oxazole Peptides. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600229] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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43
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Liu R, Chen S, Cheng S, Baker ES, Smith RD, Zeng XC, Gong B. Surprising impact of remote groups on the folding--unfolding and dimer-chain equilibria of bifunctional H-bonding unimers. Chem Commun (Camb) 2016; 52:3773-6. [PMID: 26830456 PMCID: PMC5168931 DOI: 10.1039/c6cc00224b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oligoamide 1, consisting of two H-bonding units linked by a trimethylene linker, was previously found to form a very stable, folded dimer. In this work, replacing the side chains and end groups of 1 led to derivatives that show the surprising impact of end groups on the folding and dimer-chain equilibria of the resultant molecules.
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Affiliation(s)
- Rui Liu
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA. and College of Chemistry, Beijing Normal University, Beijing 100875, China
| | | | - Shuang Cheng
- Kuang Yaming Honors School, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Erin S Baker
- Earth and Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Richard D Smith
- Earth and Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Xiao Cheng Zeng
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Bing Gong
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA. and College of Chemistry, Beijing Normal University, Beijing 100875, China
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44
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De Marco R, Tolomelli A, Juaristi E, Gentilucci L. Integrin Ligands with α/β-Hybrid Peptide Structure: Design, Bioactivity, and Conformational Aspects. Med Res Rev 2016; 36:389-424. [PMID: 26777675 DOI: 10.1002/med.21383] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Integrins are cell surface receptors for proteins of the extracellular matrix and plasma-borne adhesive proteins. Their involvement in diverse pathologies prompted medicinal chemists to develop small-molecule antagonists, and very often such molecules are peptidomimetics designed on the basis of the short native ligand-integrin recognition motifs. This review deals with peptidomimetic integrin ligands composed of α- and β-amino acids. The roles exerted by the β-amino acid components are discussed in terms of biological activity, bioavailability, and selectivity. Special attention is paid to the synthetic accessibility and efficiency of conformationally constrained heterocyclic scaffolds incorporating α/β-amino acid span.
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Affiliation(s)
- Rossella De Marco
- Department of Chemistry "G. Ciamician,", University of Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Alessandra Tolomelli
- Department of Chemistry "G. Ciamician,", University of Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Eusebio Juaristi
- Department of Chemistry, Centro de Investigacion y de Estudios Avanzados del IPN, Avenida IPN 2508, esquina Ticoman, Mexico, D.F., 07360, Mexico
| | - Luca Gentilucci
- Department of Chemistry "G. Ciamician,", University of Bologna, via Selmi 2, 40126, Bologna, Italy
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45
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Hu X, Dawson SJ, Nagaoka Y, Tanatani A, Huc I. Solid-Phase Synthesis of Water-Soluble Helically Folded Hybrid α-Amino Acid/Quinoline Oligoamides. J Org Chem 2016; 81:1137-50. [PMID: 26703882 DOI: 10.1021/acs.joc.5b02671] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report here a solid phase synthesis methodology that allows the incorporation of α-amino acids (X) into quinoline (Q) oligoamide foldamer sequences. Water-soluble hybrid oligoamides based on the XQ2 trimer repeat motif were shown to adopt helical conformations presenting α-amino acid side chains in a predictable linear array on one face of the helix. In contrast, sequences based on the XQ dimer motif expressed less well-defined behavior, most likely due to local conformational variability precluding long-range order. Also presented is a full structural investigation by NMR of a dodecameric XQ2-type foldamer containing four different amino acid residues (Lys, Ala, Asp, and Ser).
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Affiliation(s)
- Xiaobo Hu
- Université de Bordeaux, CBMN (UMR5248) , Institut Européen de Chimie et Biologie, 2 Rue Escarpit, 33600 Pessac, France
| | - Simon J Dawson
- CNRS, CBMN (UMR 5248) , Institut Européen de Chimie et Biologie, 2 Rue Escarpit, 33600 Pessac, France
| | - Yui Nagaoka
- Department of Chemistry, Faculty of Science, Ochanomizu University , 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Aya Tanatani
- Department of Chemistry, Faculty of Science, Ochanomizu University , 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Ivan Huc
- Université de Bordeaux, CBMN (UMR5248) , Institut Européen de Chimie et Biologie, 2 Rue Escarpit, 33600 Pessac, France
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46
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Jedhe GS, Vijayadas KN, Kotmale AS, Sangtani E, Shinde DR, Gonnade RG, Rajamohanan PR, Sanjayan GJ. Residue dependent hydrogen-bonding preferences in orthanilic acid-based short peptide β-turn motifs. RSC Adv 2016. [DOI: 10.1039/c6ra05684a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
This communication describes the competition between native β-turn (C10) and 2-aminobenzenesulfonic acid (SAnt)(orthanilic acid)-based pseudo β-turn (C11) in their hybrid peptides.
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Affiliation(s)
- Ganesh S. Jedhe
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | | | - Amol S. Kotmale
- Central NMR Facility
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Ekta Sangtani
- Center for Materials Characterization
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Dinesh R. Shinde
- Central NMR Facility
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Rajesh G. Gonnade
- Center for Materials Characterization
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
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47
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Ingole TS, Kotmale AS, Gawade RL, Gonnade RG, Rajamohanan PR, Sanjayan GJ. 3-Aminothiophenecarboxylic acid (3-Atc)-induced folding in peptides. NEW J CHEM 2016. [DOI: 10.1039/c6nj01667g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This article demonstrates the consequences of incorporating a constrained β-amino acid into a peptide chain and its effect on conformation of oligomers.
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Affiliation(s)
- Tukaram S. Ingole
- Division of Organic Chemistry
- National Chemical Laboratory
- Pune 411 008
- India
| | - Amol S. Kotmale
- Central NMR Facility
- National Chemical Laboratory
- Pune 411 008
- India
| | - Rupesh L. Gawade
- Center for Materials Characterization
- National Chemical Laboratory
- Pune
- India
| | - Rajesh G. Gonnade
- Center for Materials Characterization
- National Chemical Laboratory
- Pune
- India
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48
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Ikai T, Shimizu S, Awata S, Kudo T, Yamada T, Maeda K, Kanoh S. Synthesis and chiroptical properties of a π-conjugated polymer containing glucose-linked biphenyl units in the main chain capable of folding into a helical conformation. Polym Chem 2016. [DOI: 10.1039/c6py01759b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Naturally occurring ellagitannins provide us with inspiration for the development of a chiral π-conjugated polymer bearing glucose-linked biphenyl units in the main chain.
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Affiliation(s)
- Tomoyuki Ikai
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Syo Shimizu
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Seiya Awata
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Tomoya Kudo
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Takayuki Yamada
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Shigeyoshi Kanoh
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
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49
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Grison CM, Robin S, Aitken DJ. 13-Helix folding of a β/γ-peptide manifold designed from a “minimal-constraint” blueprint. Chem Commun (Camb) 2016; 52:7802-5. [DOI: 10.1039/c6cc02142e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A bottom-up design rationale was used to select an alternating β/γ-peptide motif which folds into a well-defined 13-helix in solution.
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Affiliation(s)
- Claire M. Grison
- CP3A Organic Synthesis Group
- ICMMO
- UMR 8182
- CNRS
- Université Paris-Sud
| | - Sylvie Robin
- CP3A Organic Synthesis Group
- ICMMO
- UMR 8182
- CNRS
- Université Paris-Sud
| | - David J. Aitken
- CP3A Organic Synthesis Group
- ICMMO
- UMR 8182
- CNRS
- Université Paris-Sud
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50
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Mauran L, Kauffmann B, Odaert B, Guichard G. Stabilization of an α-helix by short adjacent accessory foldamers. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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