1
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Miura T, Lee KJ, Katoh T, Suga H. In Vitro Selection of Macrocyclic l-α/d-α/β/γ-Hybrid Peptides Targeting IFN-γ/IFNGR1 Protein-Protein Interaction. J Am Chem Soc 2024; 146:17691-17699. [PMID: 38888290 PMCID: PMC11229689 DOI: 10.1021/jacs.4c01979] [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: 02/07/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/20/2024]
Abstract
Nonproteinogenic amino acids, including d-α-, β-, and γ-amino acids, present in bioactive peptides play pivotal roles in their biochemical activities and proteolytic stabilities. d-α-Amino acids (dαAA) are widely used building blocks that can enhance the proteolytic stability. Cyclic β2,3-amino acids (cβAA), for instance, can fold peptides into rigid secondary structures, improving the binding affinity and proteolytic stability. Cyclic γ2,4-amino acids (cγAA) are recently highlighted as rigid residues capable of preventing the proteolysis of flanking residues. Simultaneous incorporation of all dαAA, cβAA, and cγAA into a peptide is expected to yield l-α/d-α/β/γ-hybrid peptides with improved stability and potency. Despite challenges in the ribosomal incorporation of multiple nonproteinogenic amino acids, our engineered tRNAPro1E2 successfully reaches such a difficulty. Here, we report the ribosomal synthesis of macrocyclic l-α/d-α/β/γ-hybrid peptide libraries and their application to in vitro selection against interferon gamma receptor 1 (IFNGR1). One of the resulting l-α/d-α/β/γ-hybrid peptides, IB1, exhibited remarkable inhibitory activity against the IFN-γ/IFNGR1 protein-protein interaction (PPI) (IC50 = 12 nM), primarily attributed to the presence of a cβAA in the sequence. Additionally, cγAAs and dαAAs in the resulting peptides contributed to their serum stability. Furthermore, our peptides effectively inhibit IFN-γ/IFNGR1 PPI at the cellular level (best IC50 = 0.75 μM). Altogether, our platform expands the chemical space available for exploring peptides with high activity and stability, thereby enhancing their potential for drug discovery.
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Affiliation(s)
- Takashi Miura
- Department of Chemistry,
Graduate School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kang Ju Lee
- Department of Chemistry,
Graduate School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takayuki Katoh
- Department of Chemistry,
Graduate School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroaki Suga
- Department of Chemistry,
Graduate School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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2
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Miura T, Malla TR, Brewitz L, Tumber A, Salah E, Lee KJ, Terasaka N, Owen CD, Strain-Damerell C, Lukacik P, Walsh MA, Kawamura A, Schofield CJ, Katoh T, Suga H. Cyclic β 2,3-amino acids improve the serum stability of macrocyclic peptide inhibitors targeting the SARS-CoV-2 main protease. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2024; 97:uoae018. [PMID: 38828441 PMCID: PMC11141402 DOI: 10.1093/bulcsj/uoae018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/10/2024] [Accepted: 02/10/2024] [Indexed: 06/05/2024]
Abstract
Due to their constrained conformations, cyclic β2,3-amino acids (cβAA) are key building blocks that can fold peptides into compact and rigid structures, improving peptidase resistance and binding affinity to target proteins, due to their constrained conformations. Although the translation efficiency of cβAAs is generally low, our engineered tRNA, referred to as tRNAPro1E2, enabled efficient incorporation of cβAAs into peptide libraries using the flexible in vitro translation (FIT) system. Here we report on the design and application of a macrocyclic peptide library incorporating 3 kinds of cβAAs: (1R,2S)-2-aminocyclopentane carboxylic acid (β1), (1S,2S)-2-aminocyclohexane carboxylic acid (β2), and (1R,2R)-2-aminocyclopentane carboxylic acid. This library was applied to an in vitro selection against the SARS-CoV-2 main protease (Mpro). The resultant peptides, BM3 and BM7, bearing one β2 and two β1, exhibited potent inhibitory activities with IC50 values of 40 and 20 nM, respectively. BM3 and BM7 also showed remarkable serum stability with half-lives of 48 and >168 h, respectively. Notably, BM3A and BM7A, wherein the cβAAs were substituted with alanine, lost their inhibitory activities against Mpro and displayed substantially shorter serum half-lives. This observation underscores the significant contribution of cβAA to the activity and stability of peptides. Overall, our results highlight the potential of cβAA in generating potent and highly stable macrocyclic peptides with drug-like properties.
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Affiliation(s)
- Takashi Miura
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tika R Malla
- Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Lennart Brewitz
- Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Anthony Tumber
- Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Eidarus Salah
- Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Kang Ju Lee
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Naohiro Terasaka
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - C David Owen
- Harwell Science & Innovation Campus, Diamond Light Source, Didcot, Oxfordshire, OX11 0DE, United Kingdom
- Harwell Science & Innovation Campus, Research Complex at Harwell, Didcot, OX11 0FA, United Kingdom
| | - Claire Strain-Damerell
- Harwell Science & Innovation Campus, Diamond Light Source, Didcot, Oxfordshire, OX11 0DE, United Kingdom
- Harwell Science & Innovation Campus, Research Complex at Harwell, Didcot, OX11 0FA, United Kingdom
| | - Petra Lukacik
- Harwell Science & Innovation Campus, Diamond Light Source, Didcot, Oxfordshire, OX11 0DE, United Kingdom
- Harwell Science & Innovation Campus, Research Complex at Harwell, Didcot, OX11 0FA, United Kingdom
| | - Martin A Walsh
- Harwell Science & Innovation Campus, Diamond Light Source, Didcot, Oxfordshire, OX11 0DE, United Kingdom
- Harwell Science & Innovation Campus, Research Complex at Harwell, Didcot, OX11 0FA, United Kingdom
| | - Akane Kawamura
- Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
- Chemistry—School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - Christopher J Schofield
- Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Takayuki Katoh
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroaki Suga
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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3
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Marković V, Shaik JB, Ożga K, Ciesiołkiewicz A, Lizandra Perez J, Rudzińska-Szostak E, Berlicki Ł. Peptide foldamer-based inhibitors of the SARS-CoV-2 S protein-human ACE2 interaction. J Enzyme Inhib Med Chem 2023; 38:2244693. [PMID: 37605435 PMCID: PMC10446788 DOI: 10.1080/14756366.2023.2244693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/07/2023] [Accepted: 07/31/2023] [Indexed: 08/23/2023] Open
Abstract
The entry of the SARS-CoV-2 virus into a human host cell begins with the interaction between the viral spike protein (S protein) and human angiotensin-converting enzyme 2 (hACE2). Therefore, a possible strategy for the treatment of this infection is based on inhibiting the interaction of the two abovementioned proteins. Compounds that bind to the SARS-CoV-2 S protein at the interface with the alpha-1/alpha-2 helices of ACE2 PD Subdomain I are of particular interest. We present a stepwise optimisation of helical peptide foldamers containing trans-2-aminocylopentanecarboxylic acid residues as the folding-inducing unit. Four rounds of optimisation led to the discovery of an 18-amino-acid peptide with high affinity for the SARS-CoV-2 S protein (Kd = 650 nM) that inhibits this protein-protein interaction with IC50 = 1.3 µM. Circular dichroism and nuclear magnetic resonance studies indicated the helical conformation of this peptide in solution.
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Affiliation(s)
- Violeta Marković
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Jeelan Basha Shaik
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Katarzyna Ożga
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Agnieszka Ciesiołkiewicz
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Juan Lizandra Perez
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Ewa Rudzińska-Szostak
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
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4
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Kim J, Hong J, Park MJ, Lee HS. Tailoring Enantiomeric Chiral Channels in Metal-Peptide Networks: A Novel Foldamer-Based Approach for Host-Guest Interactions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2305753. [PMID: 37722669 DOI: 10.1002/adma.202305753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/13/2023] [Indexed: 09/20/2023]
Abstract
Designing chiral channels in organic frameworks presents an ongoing challenge due to the intricate control of size, shape, and functionality required. A novel approach is presented, which crafts enantiomeric chiral channels in metal-peptide networks (MPNs) by integrating short foldamer ligands with CuI clusters. The MPN structure serves as a 3D blueprint for host-guest chemistry, fostering modular substitution to refine chiral channel properties at the atomic scale. Incorporating hydrogen bond networks augments guest molecule interactions with the channel surface. This approach expedites enantiomer discrimination in racemic mixtures and incites adaptable guest molecules to take on specific axially chiral conformations. Distinct from traditional metal-organic frameworks (MOFs) and conventional reticular architectures, this foldamer-based methodology provides a predictable and customizable host-guest interaction system within a 3D topology. This innovation sets the stage for multifunctional materials that merge host-guest interaction systems with metal-complex properties, opening up potential applications in catalysis, sensing, and drug delivery.
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Affiliation(s)
- Jaewook Kim
- Department of Chemistry and Center for Multiscale Chiral Architectures (CMCA), KAIST, Daejeon, 34141, Republic of Korea
| | - Jungwoo Hong
- Department of Chemistry and Center for Multiscale Chiral Architectures (CMCA), KAIST, Daejeon, 34141, Republic of Korea
| | - Mi Jeong Park
- Department of Chemistry and Center for Multiscale Chiral Architectures (CMCA), KAIST, Daejeon, 34141, Republic of Korea
| | - Hee-Seung Lee
- Department of Chemistry and Center for Multiscale Chiral Architectures (CMCA), KAIST, Daejeon, 34141, Republic of Korea
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5
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Sang P, Cai J. Unnatural helical peptidic foldamers as protein segment mimics. Chem Soc Rev 2023; 52:4843-4877. [PMID: 37401344 PMCID: PMC10389297 DOI: 10.1039/d2cs00395c] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Indexed: 07/05/2023]
Abstract
Unnatural helical peptidic foldamers have attracted considerable attention owing to their unique folding behaviours, diverse artificial protein binding mechanisms, and promising applications in chemical, biological, medical, and material fields. Unlike the conventional α-helix consisting of molecular entities of native α-amino acids, unnatural helical peptidic foldamers are generally comprised of well-defined backbone conformers with unique and unnatural structural parameters. Their folded structures usually arise from unnatural amino acids such as N-substituted glycine, N-substituted-β-alanine, β-amino acid, urea, thiourea, α-aminoxy acid, α-aminoisobutyric acid, aza-amino acid, aromatic amide, γ-amino acid, as well as sulfono-γ-AA amino acid. They can exhibit intriguing and predictable three-dimensional helical structures, generally featuring superior resistance to proteolytic degradation, enhanced bioavailability, and improved chemodiversity, and are promising in mimicking helical segments of various proteins. Although it is impossible to include every piece of research work, we attempt to highlight the research progress in the past 10 years in exploring unnatural peptidic foldamers as protein helical segment mimics, by giving some representative examples and discussing the current challenges and future perspectives. We expect that this review will help elucidate the principles of structural design and applications of existing unnatural helical peptidic foldamers in protein segment mimicry, thereby attracting more researchers to explore and generate novel unnatural peptidic foldamers with unique structural and functional properties, leading to more unprecedented and practical applications.
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Affiliation(s)
- Peng Sang
- Tianjian Laboratory of Advanced Biomedical Sciences, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
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6
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Wakabayashi R, Kawai M, Katoh T, Suga H. In Vitro Selection of Macrocyclic α/β 3-Peptides against Human EGFR. J Am Chem Soc 2022; 144:18504-18510. [PMID: 36173923 PMCID: PMC9563295 DOI: 10.1021/jacs.2c07624] [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: 07/19/2022] [Indexed: 11/30/2022]
Abstract
Here, we report ribosomal construction of thioether-macrocyclic α/β3-peptide libraries in which β-homoglycine, β-homoalanine, β-homophenylglycine, and β-homoglutamine are introduced by genetic code reprogramming. The libraries were applied to the RaPID (Random nonstandard Peptides Integrated Discovery) selection against human EGFR to obtain PPI (protein-protein interaction) inhibitors. The resulting peptides contained up to five β3-amino acid (β3AA) residues and exhibited outstanding binding affinity, PPI inhibitory activity, and proteolytic stability, which were attributed to the β3AAs included in the peptides. This showcase work has demonstrated that the use of such β3AAs enhances the drug-like properties of peptides, providing a unique platform for the discovery of de novo macrocycles against a protein of interest.
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Affiliation(s)
- Risa Wakabayashi
- Department of Chemistry,
Graduate School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Marina Kawai
- Department of Chemistry,
Graduate School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takayuki Katoh
- Department of Chemistry,
Graduate School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroaki Suga
- Department of Chemistry,
Graduate School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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7
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Yan X, Weng P, Shi D, Jiang YB. Supramolecular helices from helical building blocks via head-to-tail intermolecular interactions. Chem Commun (Camb) 2021; 57:12562-12574. [PMID: 34781336 DOI: 10.1039/d1cc04991g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supramolecular helices from helical building blocks represent an emerging analogue of the α-helix. In cases where the helicity of the helical building block is well propagated, the head-to-tail intermolecular interactions that lead to the helix could be enhanced to promote the formation and the stability of the supramolecular helix, wherein homochiral elongation dominates and functional helical channel structures could also be generated. This feature article outlines the supramolecular helices built from helical building blocks, i.e., helical aromatic foldamers and helical short peptides that are held together by intermolecular π-π stacking, hydrogen/halogen/chalcogen bonding, metal coordination, dynamic covalent bonding and solvophobic interactions, with emphasis on the influence of efficient propagation of helicity during assembly, favouring homochirality and channel functions.
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Affiliation(s)
- Xiaosheng Yan
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China.
| | - Peimin Weng
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China.
| | - Di Shi
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China.
| | - Yun-Bao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China.
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8
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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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9
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Oh BC, Yoon E, Gong J, Kim J, Driver RW, Kim Y, Kim WY, Lee HS. Morphology Transformation of Foldamer Assemblies Triggered by Single Oxygen Atom on Critical Residue Switch. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102525. [PMID: 34310034 DOI: 10.1002/smll.202102525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 07/06/2021] [Indexed: 06/13/2023]
Abstract
The synthesis of morphologically well-defined peptidic materials via self-assembly is challenging but demanding for biocompatible functional materials. Moreover, switching morphology from a given shape to other predictable forms by molecular modification of the identical building block is an even more complicated subject because the self-assembly of flexible peptides is prone to diverge upon subtle structural change. To accomplish controllable morphology transformation, systematic self-assembly studies are performed using congener short β-peptide foldamers to find a minimal structural change that alters the self-assembled morphology. Introduction of oxygen-containing β-amino acid (ATFC) for subtle electronic perturbation on hydrophobic foldamer induces a previously inaccessible solid-state conformational split to generate the most susceptible modification site for morphology transformation of the foldamer assemblies. The site-dependent morphological switching power of ATFC is further demonstrated by dual substitution experiments and proven by crystallographic analyses. Stepwise morphology transformation is shown by modifying an identical foldamer scaffold. This study will guide in designing peptidic molecules from scratch to create complex and biofunctional assemblies with nonspherical shapes.
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Affiliation(s)
- Byung-Chang Oh
- Center for Multiscale Chiral Architectures, Department of Chemistry, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, 34141, Korea
| | - Eunyoung Yoon
- Korea Research Institute of Chemical Technology, Yuseong-gu, Daejeon, 34114, Korea
| | - Jintaek Gong
- Center for Multiscale Chiral Architectures, Department of Chemistry, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, 34141, Korea
| | - Jaewook Kim
- Center for Multiscale Chiral Architectures, Department of Chemistry, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, 34141, Korea
| | - Russell W Driver
- Department of Chemistry and Physics, Halmos College of Arts and Sciences, Nova Southeastern University, Fort Lauderdale, FL, 33314, USA
| | - Yongjun Kim
- Center for Multiscale Chiral Architectures, Department of Chemistry, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, 34141, Korea
| | - Woo Youn Kim
- Center for Multiscale Chiral Architectures, Department of Chemistry, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, 34141, Korea
| | - Hee-Seung Lee
- Center for Multiscale Chiral Architectures, Department of Chemistry, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon, 34141, Korea
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10
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Bejger M, Fortuna P, Drewniak-Switalska M, Plewka J, Rypniewski W, Berlicki Ł. A computationally designed β-amino acid-containing miniprotein. Chem Commun (Camb) 2021; 57:6015-6018. [PMID: 34032224 DOI: 10.1039/d1cc02192c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A new miniprotein built from three helices, including one structure based on the ααβαααβ sequence pattern was developed. Its crystal structure revealed a compact conformation with a well-packed hydrophobic core of unprecedented structure. The miniprotein formed dimers that were stabilized by the interaction of their hydrophobic surfaces.
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Affiliation(s)
- Magdalena Bejger
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, Poznań 61-704, Poland
| | - Paulina Fortuna
- Department of Bioorganic Chemistry Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, Wrocław 50-370, Poland. and Department of Medical Biochemistry, Wrocław Medical University, Pausteura 1, Wroclaw 50-368, Poland
| | - Magda Drewniak-Switalska
- Department of Bioorganic Chemistry Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, Wrocław 50-370, Poland.
| | - Jacek Plewka
- Faculty of Chemistry, Jagiellonian Univeristy, Gronostajowa 2, Kraków 30-387, Poland
| | - Wojciech Rypniewski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, Poznań 61-704, Poland
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, Wrocław 50-370, Poland.
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11
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Drewniak-Świtalska M, Barycza B, Rudzińska-Szostak E, Morawiak P, Berlicki Ł. Constrained beta-amino acid-containing miniproteins. Org Biomol Chem 2021; 19:4272-4278. [PMID: 34010377 DOI: 10.1039/d1ob00309g] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
The construction of β-amino acid-containing peptides that fold to tertiary structures in solution remains challenging. Two model miniproteins, namely, Trp-cage and FSD, were scanned using a constrained β-amino acid in order to evaluate its impact on the folding process. Relationships between forces stabilizing the miniprotein structure and conformational stability of analogues were found. The possibility of a significant increase of the conformational stability of the studied miniproteins by substitution with the β-amino acid at the terminus of a helix is shown. On the basis of these results, β-amino acid containing-peptide analogs with helical fragments substantially altered by the incorporation of several constrained β-amino acids were designed, synthesized and evaluated with respect to their structure and stability. The smallest known β-amino acid-containing peptide with a well-defined tertiary structure is described.
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Affiliation(s)
- Magda Drewniak-Świtalska
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Barbara Barycza
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Ewa Rudzińska-Szostak
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Paweł Morawiak
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
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12
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Ożga K, Drewniak-Świtalska M, Rudzińska-Szostak E, Berlicki Ł. Towards Foldameric Miniproteins: A Helix-Turn-Helix Motif. Chempluschem 2021; 86:646-649. [PMID: 33856118 DOI: 10.1002/cplu.202100090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/30/2021] [Indexed: 11/11/2022]
Abstract
Numerous beta-amino acid containing peptides forming secondary structures have been already described, however the design of higher-order structures remains poorly explored. The methodology allowing construction of sequence patterns containing few rigid secondary element was proposed and experimentally validated. On the basis of 9/10/9/12-helix containing cis-2-aminocyclopentanecarboxylic acid (cis-ACPC) residues arranged in an ααββ sequence pattern, a conformationally stable helix-turn-helix structure was designed. The connection between two helices was also constructed using cis-ACPC residues. Five examples of designed peptides were obtained and analyzed using circular dichroism and nuclear magnetic resonance spectroscopy, which confirmed the assumed way of folding. The NMR structure was calculated for the peptide with the highest number of non-sequential contacts.
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Affiliation(s)
- Katarzyna Ożga
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
| | - Magda Drewniak-Świtalska
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
| | - Ewa Rudzińska-Szostak
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
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13
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Systematic ‘foldamerization’ of peptide inhibiting p53-MDM2/X interactions by the incorporation of trans- or cis-2-aminocyclopentanecarboxylic acid residues. Eur J Med Chem 2020; 208:112814. [DOI: 10.1016/j.ejmech.2020.112814] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/04/2020] [Accepted: 09/01/2020] [Indexed: 12/18/2022]
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14
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Aloisi A, Christensen NJ, Sørensen KK, Guilbaud-Chéreau C, Jensen KJ, Bianco A. Synthesis and Characterization of Adamantane-Containing Heteropeptides with a Chirality Switch. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Adriano Aloisi
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry; ISIS; University of Strasbourg; UPR 3572 67000 Strasbourg France
| | - Niels Johan Christensen
- Department of Chemistry; University of Copenhagen; Thorvaldsensvej 40 1871 Frederiksberg Denmark
| | - Kasper K. Sørensen
- Department of Chemistry; University of Copenhagen; Thorvaldsensvej 40 1871 Frederiksberg Denmark
| | - Chloé Guilbaud-Chéreau
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry; ISIS; University of Strasbourg; UPR 3572 67000 Strasbourg France
| | - Knud J. Jensen
- Department of Chemistry; University of Copenhagen; Thorvaldsensvej 40 1871 Frederiksberg Denmark
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry; ISIS; University of Strasbourg; UPR 3572 67000 Strasbourg France
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15
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Merritt HI, Sawyer N, Arora PS. Bent Into Shape: Folded Peptides to Mimic Protein Structure and Modulate Protein Function. Pept Sci (Hoboken) 2020; 112:e24145. [PMID: 33575525 PMCID: PMC7875438 DOI: 10.1002/pep2.24145] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 12/11/2019] [Indexed: 12/16/2022]
Abstract
Protein secondary and tertiary structure mimics have served as model systems to probe biophysical parameters that guide protein folding and as attractive reagents to modulate protein interactions. Here we review contemporary methods to reproduce loop, helix, sheet and coiled-coil conformations in short peptides.
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Affiliation(s)
| | | | - Paramjit S. Arora
- Department of Chemistry New York University, New York, New York 10003, United States
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16
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Wang S, Otani Y, Zhai L, Su A, Nara M, Kawahata M, Yamaguchi K, Sada A, Ohki R, Ohwada T. Overall Shape Constraint of Alternating α/β-Hybrid Peptides Containing Bicyclic β-Proline. Org Lett 2019; 21:7813-7817. [PMID: 31518151 DOI: 10.1021/acs.orglett.9b02799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Our NMR, IR/Raman, CD spectroscopic, and X-ray crystallographic studies, as well as accelerated molecular dynamics simulations, showed that alternating hybrid α/β-peptides containing a bicyclic β-proline surrogate form unique extended curved folds, regardless of the peptide length and solvent environment. It is suggested that extended β/PPII structures are preferred in the insulating α-alanine moieties between the rigid bicyclic β-proline structures. These hybrid peptides inhibit p53-MDM2 and p53-MDMX protein-protein interactions.
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Affiliation(s)
- Siyuan Wang
- Graduate School of Pharmaceutical Sciences , University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan.,Research Foundation Itsuu Laboratory , C1232 Kanagawa Science Park R&D Building, 3-2-1 Sakado, Takatsu-ku , Kawasaki , Kanagawa 213-0012 , Japan
| | - Yuko Otani
- Graduate School of Pharmaceutical Sciences , University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Luhan Zhai
- Graduate School of Pharmaceutical Sciences , University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Aoze Su
- Graduate School of Pharmaceutical Sciences , University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Masayuki Nara
- Department of Chemistry, College of Liberal Arts and Sciences , Tokyo Medical and Dental University , 2-8-30 Kohnodai , Ichikawa , Chiba 272-0827 , Japan
| | - Masatoshi Kawahata
- Department of Pharmaceutical Sciences at Kagawa Campus , Tokushima Bunri University , 1314-1 Shido , Sanuki , Kagawa 769-2193 , Japan
| | - Kentaro Yamaguchi
- Department of Pharmaceutical Sciences at Kagawa Campus , Tokushima Bunri University , 1314-1 Shido , Sanuki , Kagawa 769-2193 , Japan
| | - Akane Sada
- Laboratory of Fundamental Oncology , National Cancer Center Research Institute , Tsukiji 5-1-1 , Chuo-ku , Tokyo 104-0045 , Japan
| | - Rieko Ohki
- Laboratory of Fundamental Oncology , National Cancer Center Research Institute , Tsukiji 5-1-1 , Chuo-ku , Tokyo 104-0045 , Japan
| | - Tomohiko Ohwada
- Graduate School of Pharmaceutical Sciences , University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan
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17
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Veeresh K, Gopi HN. Design of Helical Peptide Foldamers through α,β → β,γ Double-Bond Migration. Org Lett 2019; 21:4500-4504. [DOI: 10.1021/acs.orglett.9b01365] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kuruva Veeresh
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411 008, India
| | - Hosahudya N. Gopi
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411 008, India
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18
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Misra R, Saseendran A, Dey S, Gopi HN. Metal‐Helix Frameworks from Short Hybrid Peptide Foldamers. Angew Chem Int Ed Engl 2019; 58:2251-2255. [DOI: 10.1002/anie.201810849] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Rajkumar Misra
- Department of ChemistryIndian Institution of Science Education and Research Dr. Homi Bhabha Road Pune- 411008 India
| | - Abhijith Saseendran
- Department of ChemistryIndian Institution of Science Education and Research Dr. Homi Bhabha Road Pune- 411008 India
| | - Sanjit Dey
- Department of ChemistryIndian Institution of Science Education and Research Dr. Homi Bhabha Road Pune- 411008 India
| | - Hosahudya N. Gopi
- Department of ChemistryIndian Institution of Science Education and Research Dr. Homi Bhabha Road Pune- 411008 India
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19
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Lim D, Kim H, Gong J, Eom JH, Yoon E, Driver RW, Baik MH, Lee HS. Directing Foldamer Self-Assembly with a Cyclopropanoyl Cap. Chemistry 2019; 25:2226-2233. [PMID: 30600849 DOI: 10.1002/chem.201805783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/22/2018] [Indexed: 11/07/2022]
Abstract
The rational design of self-assembling organic materials is extremely challenging due to the difficulty in precisely predicting solid-state architectures from first principles, especially if synthons are conformationally flexible. A tractable model system to study self-assembly was constructed by appending cyclopropanoyl caps to the N termini of helical α/β-peptide foldamers, designed to form both N-H⋅⋅⋅O and Cα -H⋅⋅⋅O hydrogen bonds, which then rapidly self-assembled to form foldectures (foldamer architectures). Through a combined analytical and computational investigation, cyclopropanoyl capping was observed to markedly enhance self-assembly in recalcitrant substrates and direct the formation of a single intermolecular N-H⋅⋅⋅O/Cα -H⋅⋅⋅O bonding motif in single crystals, regardless of peptide sequence or foldamer conformation. In contrast to previous studies, foldamer constituents of single crystals and foldectures assumed different secondary structures and different molecular packing modes, despite a conserved N-H⋅⋅⋅O/Cα -H⋅⋅⋅O bonding motif. DFT calculations validated the experimental results by showing that the N-H⋅⋅⋅O/Cα -H⋅⋅⋅O interaction created by the cap was sufficiently attractive to influence self-assembly. This versatile strategy to harness secondary noncovalent interactions in the rational design of self-assembling organic materials will allow for the exploration of new substrates and speed up the development of novel applications within this increasingly important class of materials.
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Affiliation(s)
- Danim Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Multiscale Chiral Architectures (CMCA), Daejeon, 34141, Republic of Korea
| | - Hyunjoong Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Jintaek Gong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Multiscale Chiral Architectures (CMCA), Daejeon, 34141, Republic of Korea
| | - Jae-Hoon Eom
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Multiscale Chiral Architectures (CMCA), Daejeon, 34141, Republic of Korea
| | - Eunyoung Yoon
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Russell W Driver
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Department of Chemistry and Physics, Halmos College of Natural Sciences and Oceanography, Nova Southeastern University, Fort Lauderdale, FL, 33314, USA
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
| | - Hee-Seung Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.,Center for Multiscale Chiral Architectures (CMCA), Daejeon, 34141, Republic of Korea
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20
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Misra R, Saseendran A, Dey S, Gopi HN. Metal-Helix Frameworks from Short Hybrid Peptide Foldamers. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201810849] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rajkumar Misra
- Department of Chemistry; Indian Institution of Science Education and Research; Dr. Homi Bhabha Road Pune- 411008 India
| | - Abhijith Saseendran
- Department of Chemistry; Indian Institution of Science Education and Research; Dr. Homi Bhabha Road Pune- 411008 India
| | - Sanjit Dey
- Department of Chemistry; Indian Institution of Science Education and Research; Dr. Homi Bhabha Road Pune- 411008 India
| | - Hosahudya N. Gopi
- Department of Chemistry; Indian Institution of Science Education and Research; Dr. Homi Bhabha Road Pune- 411008 India
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21
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Girvin ZC, Gellman SH. Exploration of Diverse Reactive Diad Geometries for Bifunctional Catalysis via Foldamer Backbone Variation. J Am Chem Soc 2018; 140:12476-12483. [PMID: 30226762 DOI: 10.1021/jacs.8b05869] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
What is the best spatial arrangement of a pair of reactive groups for bifunctional catalysis of a chemical transformation? The conformational versatility of proteins allows reactive group geometry to be explored and optimized via evolutionary selection, but it has been difficult for chemists to identify synthetic scaffolds that allow broad comparative evaluation among alternative reactive group geometries. Here we show that a family of helices, adopted predictably by oligomers composed partially or exclusively of β-amino acid residues, enables us to explore a range of orientations for a pair of pyrrolidine units that must work in tandem to catalyze a crossed aldol reaction. Thus, the crossed aldol reaction serves as an assay of reactive diad efficacy. We have chosen a test reaction free of stereochemical complexity in order to streamline our study of reactivity. The best geometry enhances the initial rate of product formation by two orders of magnitude. Our findings raise the possibility that rudimentary catalysts involving an isolated secondary structure might have facilitated the development of prebiotic reaction networks.
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Affiliation(s)
- Zebediah C Girvin
- Department of Chemistry , University of Wisconsin , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Samuel H Gellman
- Department of Chemistry , University of Wisconsin , 1101 University Avenue , Madison , Wisconsin 53706 , United States
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22
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Debnath M, Das T, Podder D, Haldar D. α,ε-Hybrid Peptide Foldamers: Self-Assembly of Peptide with Trans Carbon-Carbon Double Bonds in the Backbone and Its Saturated Analogue. ACS OMEGA 2018; 3:8760-8768. [PMID: 31459008 PMCID: PMC6644893 DOI: 10.1021/acsomega.8b00832] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 07/24/2018] [Indexed: 05/02/2023]
Abstract
The effect of geometrically rigid trans α,β-unsaturated ε-amino acids on the structure, folding, and assembly of α,ε-hybrid peptide foldamers has been reported. From single-crystal diffraction analysis, the unsaturated tetrapeptide 1 has stapler-pin-like structure but without intramolecular hydrogen bond. The asymmetric unit has two molecules that are stabilized by multiple intermolecular hydrogen bonding interactions as well as π-π stacking interactions between the aromatic rings of 3-aminocinnamic acid. Peptide 1 does not form organogel. But on hydrogenation, peptide 1 provides the saturated α,ε-hybrid peptide foldamer 2, which forms instant gel in most of the aromatic solvents. The gel exhibits high stability. The unsaturated peptide 1 has porous microsphere morphology, but saturated analogue 2 has ribbonlike morphology. The gel has been used efficiently for removal of cationic organic pollutants from waste water.
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23
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Drewniak M, Węglarz-Tomczak E, Ożga K, Rudzińska-Szostak E, Macegoniuk K, Tomczak JM, Bejger M, Rypniewski W, Berlicki Ł. Helix-loop-helix peptide foldamers and their use in the construction of hydrolase mimetics. Bioorg Chem 2018; 81:356-361. [PMID: 30195249 DOI: 10.1016/j.bioorg.2018.07.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 07/02/2018] [Accepted: 07/12/2018] [Indexed: 01/18/2023]
Abstract
De novo designed helix-loop-helix peptide foldamers containing cis-2-aminocyclopentanecarboxylic acid residues were evaluated for their conformational stability and possible use in enzyme mimetic development. The correlation between hydrogen bond network size and conformational stability was demonstrated through CD and NMR spectroscopies. Molecules incorporating a Cys/His/Glu triad exhibited enzyme-like hydrolytic activity.
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Affiliation(s)
- Magda Drewniak
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Ewelina Węglarz-Tomczak
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Katarzyna Ożga
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Ewa Rudzińska-Szostak
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Katarzyna Macegoniuk
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Jakub M Tomczak
- Amsterdam Machine Learning Lab, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Magdalena Bejger
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland
| | - Wojciech Rypniewski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznań, Poland
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
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24
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McKay MJ, Afrose F, Koeppe RE, Greathouse DV. Helix formation and stability in membranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:2108-2117. [PMID: 29447916 DOI: 10.1016/j.bbamem.2018.02.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 01/05/2023]
Abstract
In this article we review current understanding of basic principles for the folding of membrane proteins, focusing on the more abundant alpha-helical class. Membrane proteins, vital to many biological functions and implicated in numerous diseases, fold into their active conformations in the complex environment of the cell bilayer membrane. While many membrane proteins rely on the translocon and chaperone proteins to fold correctly, others can achieve their functional form in the absence of any translation apparatus or other aides. Nevertheless, the spontaneous folding process is not well understood at the molecular level. Recent findings suggest that helix fraying and loop formation may be important for overall structure, dynamics and regulation of function. Several types of membrane helices with ionizable amino acids change their topology with pH. Additionally we note that some peptides, including many that are rich in arginine, and a particular analogue of gramicidin, are able passively to translocate across cell membranes. The findings indicate that a final protein structure in a lipid-bilayer membrane is sequence-based, with lipids contributing to stability and regulation. While much progress has been made toward understanding the folding process for alpha-helical membrane proteins, it remains a work in progress. This article is part of a Special Issue entitled: Emergence of Complex Behavior in Biomembranes edited by Marjorie Longo.
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Affiliation(s)
- Matthew J McKay
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA
| | - Fahmida Afrose
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA
| | - Roger E Koeppe
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA
| | - Denise V Greathouse
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA.
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25
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Misra R, Raja KMP, Hofmann HJ, Gopi HN. Modulating the Structural Properties of α,γ-Hybrid Peptides by α-Amino Acid Residues: Uniform 12-Helix Versus "Mixed" 12/10-Helix. Chemistry 2017; 23:16644-16652. [PMID: 28922503 DOI: 10.1002/chem.201703871] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Indexed: 01/06/2023]
Abstract
The most important natural α- and 310 -helices are stabilized by unidirectional intramolecular hydrogen bonds along the helical cylinder. In contrast, we report here on 12/10-helical conformations with alternately changing hydrogen-bond directionality in sequences of α,γ-hybrid peptides P1-P5 [P1: Boc-Ala-Aic-Ala-Aic-COOH; P2: Boc-Leu-Aic-Leu-Aic-OEt; P3: Boc-Leu-Aic-Leu-Aic-Leu-Aic-Aib-OMe; P4: Boc-Ala-Aic-Ala-Aic-Ala-Aic-Ala-OMe; P5: Boc-Leu-Aic-Leu-Aic-Leu-Aic-Leu-Aic-Aib-OMe; Aic=4-aminoisocaproic acid, Aib=2-aminoisobutyric acid] composed of natural α-amino acids and the achiral γ4,4 -dimethyl substituted γ-amino acid Aic in solution and in single crystals. The helical conformations are stabilized by alternating i→i+3 and i→i-1 intramolecular hydrogen bonds. The experimental data are supported by ab initio MO calculations. Surprisingly, replacing the natural α-amino acids of the sequence by the achiral dialkyl amino acid Ac6 c [P6: Boc-Ac6 c-Aic-Ac6 c-Aic-Ac6 c-Aic-Ac6 c-Aic-Ac6 c-CONHMe; Ac6 c = 1-aminocyclohexane-1-carboxylic acid] led to a 12-helix with unidirectional hydrogen bonds showing an entirely different backbone conformation. The results presented here emphasize the influence of the structure of the α-amino acid residues in dictating the helix types in α,γ-hybrid peptide foldamers and demonstrate the consequences for folding of small structural variations in the monomers.
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Affiliation(s)
- Rajkumar Misra
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, 411 008, India
| | - K Muruga Poopathi Raja
- Department of Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, India
| | - Hans-Jörg Hofmann
- Institute of Biochemistry, Faculty of Biosciences, Pharmacy and Psychology, Brüderstrasse 34, 04103, Leipzig, Germany
| | - Hosahudya N Gopi
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, 411 008, India
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26
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Rudzińska-Szostak E, Berlicki Ł. Sequence Engineering to Control the Helix Handedness of Peptide Foldamers. Chemistry 2017; 23:14980-14986. [DOI: 10.1002/chem.201702730] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Ewa Rudzińska-Szostak
- Department of Bioorganic Chemistry; Faculty of Chemistry; Wrocław University of Science and Technology; Wyb. Wyspiańskiego 27 50-370 Wrocław Poland
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry; Faculty of Chemistry; Wrocław University of Science and Technology; Wyb. Wyspiańskiego 27 50-370 Wrocław Poland
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27
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Misra R, Saseendran A, George G, Veeresh K, Raja KMP, Raghothama S, Hofmann HJ, Gopi HN. Structural Dimorphism of Achiral α,γ-Hybrid Peptide Foldamers: Coexistence of 12- and 15/17-Helices. Chemistry 2017; 23:3764-3772. [DOI: 10.1002/chem.201605753] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Indexed: 01/17/2023]
Affiliation(s)
- Rajkumar Misra
- Department of Chemistry; Indian Institution of Science Education and Research; Dr. Homi Bhabha Road Pune 411021 India
| | - Abhijith Saseendran
- Department of Chemistry; Indian Institution of Science Education and Research; Dr. Homi Bhabha Road Pune 411021 India
| | - Gijo George
- NMR Research Center; Indian Institute of Science; Bangalore 560012 India
| | - Kuruva Veeresh
- Department of Chemistry; Indian Institution of Science Education and Research; Dr. Homi Bhabha Road Pune 411021 India
| | - K. Muruga Poopathi Raja
- Department of Physical Chemistry; School of Chemistry; Madurai Kamaraj University; Madurai 625 021 India
| | | | - Hans-Jörg Hofmann
- Institute of Biochemistry; Faculty of Biosciences, Pharmacy and Psychology; Talstraße 33 04103 Leipzig Germany
| | - Hosahudya N. Gopi
- Department of Chemistry; Indian Institution of Science Education and Research; Dr. Homi Bhabha Road Pune 411021 India
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28
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Malik A, Kumar MG, Bandyopadhyay A, Gopi HN. Helices with additional H-bonds: crystallographic conformations of α,γ-hybrid peptides helices composed of β-hydroxy γ-amino acids (statines). Biopolymers 2017; 108. [DOI: 10.1002/bip.22978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 08/05/2016] [Accepted: 08/25/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Ankita Malik
- Department of Chemistry; Indian Institute of Science Education and Research-Pune; Dr. Homi Bhabha Road Pune 411008 India
| | - Mothukuri Ganesh Kumar
- Department of Chemistry; Indian Institute of Science Education and Research-Pune; Dr. Homi Bhabha Road Pune 411008 India
| | - Anupam Bandyopadhyay
- Department of Chemistry; Indian Institute of Science Education and Research-Pune; Dr. Homi Bhabha Road Pune 411008 India
| | - Hosahudya N. Gopi
- Department of Chemistry; Indian Institute of Science Education and Research-Pune; Dr. Homi Bhabha Road Pune 411008 India
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29
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Legrand B, André C, Moulat L, Didierjean C, Hermet P, Bantignies JL, Martinez J, Amblard M, Calmès M. 12/14/14-Helix Formation in 2:1 α/β-Hybrid Peptides Containing Bicyclo[2.2.2]octane Ring Constraints. Chemistry 2016; 22:11986-90. [DOI: 10.1002/chem.201602746] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Baptiste Legrand
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247 CNRS-Université Montpellier-ENSCM; 15 avenue Charles Flahault 34093 Montpellier cedex 5 France
| | - Christophe André
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247 CNRS-Université Montpellier-ENSCM; 15 avenue Charles Flahault 34093 Montpellier cedex 5 France
| | - Laure Moulat
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247 CNRS-Université Montpellier-ENSCM; 15 avenue Charles Flahault 34093 Montpellier cedex 5 France
| | - Claude Didierjean
- CRM2; UMR 7063 CNRS Université de Lorraine; Boulevard des Aiguilletes 54506 Vandoeuvre-lès-Nancy Cedex France
| | - Patrick Hermet
- Institut Charles Gerhardt Montpellier, UMR-5253, CNRS; Université de Montpellier, ENSCM; Place E. Bataillon 34095 Montpellier Cédex 5 France
| | - Jean-Louis Bantignies
- Laboratoire Charles Coulomb; UMR 5221 CNRS-Université de Montpellier; 34095 Montpellier France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247 CNRS-Université Montpellier-ENSCM; 15 avenue Charles Flahault 34093 Montpellier cedex 5 France
| | - Muriel Amblard
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247 CNRS-Université Montpellier-ENSCM; 15 avenue Charles Flahault 34093 Montpellier cedex 5 France
| | - Monique Calmès
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247 CNRS-Université Montpellier-ENSCM; 15 avenue Charles Flahault 34093 Montpellier cedex 5 France
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30
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Lee J, Jang G, Kang P, Choi MG, Choi SH. Helical α/β-depsipeptides with alternating residue types: conformational change from the 11-helix to the 14/15-helix. Org Biomol Chem 2016; 14:8438-42. [DOI: 10.1039/c6ob01602b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Short α/β-depsipeptides of which the third residue from the N-terminus is an (S)-lactic acid residue predominantly adopt 14/15-helical conformations analogous to the α-helix.
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Affiliation(s)
- Jaeyeon Lee
- Department of Chemistry
- Yonsei University
- Seoul
- Republic of Korea
| | - Geunhyeok Jang
- Department of Chemistry
- Yonsei University
- Seoul
- Republic of Korea
| | - Philjae Kang
- Department of Chemistry
- Yonsei University
- Seoul
- Republic of Korea
| | - Moon-Gun Choi
- Department of Chemistry
- Yonsei University
- Seoul
- Republic of Korea
| | - Soo Hyuk Choi
- Department of Chemistry
- Yonsei University
- Seoul
- Republic of Korea
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31
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Eom J, Gong J, Kwon S, Jeon A, Jeong R, Driver RW, Lee H. A Hollow Foldecture with Truncated Trigonal Bipyramid Shape from the Self‐Assembly of an 11‐Helical Foldamer. Angew Chem Int Ed Engl 2015; 54:13204-7. [DOI: 10.1002/anie.201504248] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 07/13/2015] [Indexed: 01/20/2023]
Affiliation(s)
- Jae‐Hoon Eom
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Jintaek Gong
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Sunbum Kwon
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Aram Jeon
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Rokam Jeong
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Russell W. Driver
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Hee‐Seung Lee
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
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32
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Eom JH, Jeong R, Gong J, Driver RW, Lee HS. Foldectures from the Self-Assembly of Racemic Foldamers. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10527] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jae-Hoon Eom
- Department of Chemistry; Molecular-Level Interface Research Center, KAIST; Daejeon 305-701 Korea
| | - Rokam Jeong
- Department of Chemistry; Molecular-Level Interface Research Center, KAIST; Daejeon 305-701 Korea
| | - Jintaek Gong
- Department of Chemistry; Molecular-Level Interface Research Center, KAIST; Daejeon 305-701 Korea
| | - Russell W. Driver
- Department of Chemistry; Molecular-Level Interface Research Center, KAIST; Daejeon 305-701 Korea
| | - Hee-Seung Lee
- Department of Chemistry; Molecular-Level Interface Research Center, KAIST; Daejeon 305-701 Korea
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33
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Eom J, Gong J, Kwon S, Jeon A, Jeong R, Driver RW, Lee H. A Hollow Foldecture with Truncated Trigonal Bipyramid Shape from the Self‐Assembly of an 11‐Helical Foldamer. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504248] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jae‐Hoon Eom
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Jintaek Gong
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Sunbum Kwon
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Aram Jeon
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Rokam Jeong
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Russell W. Driver
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
| | - Hee‐Seung Lee
- Department of Chemistry, KAIST, Molecular‐Level Interface Research Center, 291 Daehak‐ro, Yuseong‐gu, Daejeon 305‐701 (Korea) http://hslee.kaist.ac.kr
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34
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Balamurugan D, Muraleedharan KM. Can Helical Peptides Unwind One Turn at a Time? - Controlled Conformational Transitions in α,β(2,3)-Hybrid Peptides. Chemistry 2015; 21:9332-8. [PMID: 25980664 DOI: 10.1002/chem.201501198] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Indexed: 11/07/2022]
Abstract
Unfolding of helical trans-β(2,3) -hybrid peptides with (α-β)n α composition, when executed by increasing solvent polarity or temperature, proceeded in a systematic manner with the turns unwinding sequentially; C-terminal region of these peptides were first to unwind and the process propagated towards N terminus with more and more β residues equilibrating from the gauche to the anti rotameric state across Cα-Cβ . This is evidenced by clear change in their Cβ H signal splitting, (3)JCαH-CβH values, and sequential disappearance of i,i+2 NOEs.
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Affiliation(s)
- Dhayalan Balamurugan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036 (India)
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35
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Vilaivan C, Srisuwannaket C, Ananthanawat C, Suparpprom C, Kawakami J, Yamaguchi Y, Tanaka Y, Vilaivan T. Pyrrolidinyl peptide nucleic acid with α/β-peptide backbone: A conformationally constrained PNA with unusual hybridization properties. ARTIFICIAL DNA, PNA & XNA 2014; 2:50-59. [PMID: 21912727 DOI: 10.4161/adna.2.2.16340] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2011] [Revised: 06/09/2011] [Accepted: 06/10/2011] [Indexed: 01/17/2023]
Abstract
We describe herein a new conformationally constrained analog of PNA carrying an alternating α/β amino acid backbone consisting of (2'R,4'R)-nucleobase-subtituted proline and (1S,2S)-2-aminocyclopentanecarboxylic acid (acpcPNA). The acpcPNA has been synthesized and evaluated for DNA, RNA and self-pairing properties by thermal denaturation experiments. It can form antiparallel hybrids with complementary DNA with high affinity and sequence specificity. Unlike other PNA systems, the thermal stability of acpcPNA·DNA hybrid is largely independent of G+C contents, and is generally higher than that of acpcPNA·RNA hybrid with the same sequence. Thermodynamic parameters analysis suggest that the A·T base pairs in the acpcPNA·DNA hybrids are enthalpically stabilized over G·C pairs. The acpcPNA also shows a hitherto unreported behavior, namely the inability to form self-pairing hybrids. These unusual properties should make the new acpcPNA a potentially useful candidate for various applications including microarray probes and antigene agents.
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Affiliation(s)
- Chotima Vilaivan
- Organic Synthesis Research Unit; Department of Chemistry; Faculty of Science; Chulalongkorn University; Patumwan, Bangkok, Thailand
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36
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Giuliano MW, Maynard SJ, Almeida AM, Guo L, Guzei IA, Spencer LC, Gellman SH. A γ-Amino Acid That Favors 12/10-Helical Secondary Structure in α/γ-Peptides. J Am Chem Soc 2014; 136:15046-53. [DOI: 10.1021/ja5076585] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael W. Giuliano
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Stacy J. Maynard
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Aaron M. Almeida
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Li Guo
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Ilia A. Guzei
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Lara C. Spencer
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Samuel H. Gellman
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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37
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Legrand B, André C, Moulat L, Wenger E, Didierjean C, Aubert E, Averlant-Petit MC, Martinez J, Calmes M, Amblard M. Unprecedented Chain-Length-Dependent Conformational Conversion Between 11/9 and 18/16 Helix in α/β-Hybrid Peptides. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407329] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Legrand B, André C, Moulat L, Wenger E, Didierjean C, Aubert E, Averlant-Petit MC, Martinez J, Calmes M, Amblard M. Unprecedented Chain-Length-Dependent Conformational Conversion Between 11/9 and 18/16 Helix in α/β-Hybrid Peptides. Angew Chem Int Ed Engl 2014; 53:13131-5. [DOI: 10.1002/anie.201407329] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Indexed: 01/05/2023]
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39
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Marelli UK, Frank AO, Wahl B, La Pietra V, Novellino E, Marinelli L, Herdtweck E, Groll M, Kessler H. Receptor-bound conformation of cilengitide better represented by its solution-state structure than the solid-state structure. Chemistry 2014; 20:14201-6. [PMID: 25251673 DOI: 10.1002/chem.201403839] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Indexed: 11/09/2022]
Abstract
The X-ray crystal and NMR spectroscopic structures of the peptide drug candidate Cilengitide (cyclo(RGDf(NMe)Val)) in various solvents are obtained and compared in addition to the integrin receptor bound conformation. The NMR-based solution structures exhibit conformations closely resembling the X-ray structure of Cilengitide bound to the head group of integrin αvβ3. In contrast, the structure of pure Cilengitide recrystallized from methanol reveals a different conformation controlled by the lattice forces of the crystal packing. Molecular modeling studies of the various ligand structures docked to the αvβ3 integrin revealed that utilization of the solid-state conformation of Cilengitide leads-unlike the solution-based structures-to a mismatch of the ligand-receptor interactions compared with the experimentally determined structure of the protein-ligand complex. Such discrepancies between solution and crystal conformations of ligands can be misleading during the structure-based lead optimization process and should thus be taken carefully into account in ligand orientated drug design.
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Affiliation(s)
- Udaya Kiran Marelli
- Institute for Advanced Study (IAS) and Center for Integrated Protein Science (CIPSM), Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching (Germany)
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40
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Basuroy K, Karuppiah V, Balaram P. C11/C9 Helices in Crystals of αβ Hybrid Peptides and Switching Structures between Helix Types by Variation in the α-Residue. Org Lett 2014; 16:4614-7. [DOI: 10.1021/ol5021866] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Krishnayan Basuroy
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560012, India
| | - Vasantham Karuppiah
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560012, India
| | - Padmanabhan Balaram
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560012, India
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41
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Gord JR, Walsh PS, Fisher BF, Gellman SH, Zwier TS. Mimicking the First Turn of an α-Helix with an Unnatural Backbone: Conformation-Specific IR and UV Spectroscopy of Cyclically Constrained β/γ-Peptides. J Phys Chem B 2014; 118:8246-56. [PMID: 24694352 DOI: 10.1021/jp5015884] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Joseph R. Gord
- Department
of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Patrick S. Walsh
- Department
of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Brian F. Fisher
- Department
of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Samuel H. Gellman
- Department
of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Timothy S. Zwier
- Department
of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
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42
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Structural preferences of two unnatural hybrid octapeptides with and without the crystal environment: a computational study. Theor Chem Acc 2014. [DOI: 10.1007/s00214-013-1444-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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43
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Lee M, Shim J, Kang P, Guzei IA, Choi SH. Structural Characterization of α/β-Peptides having Alternating Residues: X-ray Structures of the 11/9-Helix from Crystals of Racemic Mixtures. Angew Chem Int Ed Engl 2013; 52:12564-7. [DOI: 10.1002/anie.201306404] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 09/05/2013] [Indexed: 11/06/2022]
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44
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Lee M, Shim J, Kang P, Guzei IA, Choi SH. Structural Characterization of α/β-Peptides having Alternating Residues: X-ray Structures of the 11/9-Helix from Crystals of Racemic Mixtures. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306404] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Basuroy K, Dinesh B, Shamala N, Balaram P. Promotion of Folding in Hybrid Peptides through Unconstrained γ Residues: Structural Characterization of Helices in (αγγ)nand (αγα)nSequences. Angew Chem Int Ed Engl 2013; 52:3136-9. [DOI: 10.1002/anie.201209324] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Indexed: 11/05/2022]
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46
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Basuroy K, Dinesh B, Shamala N, Balaram P. Promotion of Folding in Hybrid Peptides through Unconstrained γ Residues: Structural Characterization of Helices in (αγγ)nand (αγα)nSequences. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209324] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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47
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Abstract
We describe a general strategy for creating peptidic oligomers that have unnatural backbones but nevertheless adopt a conformation very similar to the α-helix. These oligomers contain both α- and β-amino acid residues (α/β-peptides). If the β content reaches 25-30% of the residue total, and the β residues are evenly distributed along the backbone, then substantial resistance to proteolytic degradation is often observed. These α/β-peptides can mimic the informational properties of α-helices involved in protein-protein recognition events, as documented in numerous crystal structures. Thus, these unnatural oligomers can be a source of antagonists of undesirable protein-protein interactions that are mediated by natural α-helices, or agonists of receptors for which the natural polypeptide ligands are α-helical. Successes include mimicry of BH3 domains found in proapoptotic proteins, which leads to ligands for antiapoptotic Bcl-2 family proteins, and mimicry of the gp41 CHR domain, which leads to inhibition of HIV infection in cell-based assays.
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Affiliation(s)
- Lisa M Johnson
- Department of Chemistry, University of Wisconsin, Madison, Wisconsin, USA
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48
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Vijayadas KN, Nair RV, Gawade RL, Kotmale AS, Prabhakaran P, Gonnade RG, Puranik VG, Rajamohanan PR, Sanjayan GJ. Ester vs. amide on folding: a case study with a 2-residue synthetic peptide. Org Biomol Chem 2013; 11:8348-56. [DOI: 10.1039/c3ob41967c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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49
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Baldauf C, Hofmann HJ. Ab initioMO Theory - An Important Tool in Foldamer Research: Prediction of Helices in Oligomers ofω-Amino Acids. Helv Chim Acta 2012. [DOI: 10.1002/hlca.201200436] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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50
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van der Knaap M, Basalan F, van de Mei HC, Busscher HJ, van der Marel GA, Overkleeft HS, Overhand M. Synthesis and Biological Evaluation of Gramicidin S-Inspired Cyclic Mixedα/β-Peptides. Chem Biodivers 2012; 9:2494-506. [DOI: 10.1002/cbdv.201200277] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Indexed: 11/06/2022]
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