1
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Liu J, Wang Y, Huo F, He H. Ionic liquids inhibit the dynamic transition from α -helices to β -sheets in peptides. FUNDAMENTAL RESEARCH 2024; 4:777-784. [PMID: 39156578 PMCID: PMC11330114 DOI: 10.1016/j.fmre.2023.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 08/20/2024] Open
Abstract
Abnormalities in the transition between α-helices and β-sheets (α-β transition) may lead to devastating neurodegenerative diseases, such as Parkinson's syndrome and Alzheimer's disease. Ionic liquids (ILs) are potential drugs for targeted therapies against these diseases because of their excellent bioactivity and designability of ILs. However, the mechanism through which ILs regulate the α-β transition remains unclear. Herein, a combination of GPU-accelerated microsecond molecular dynamics simulations, correlation analysis, and machine learning was used to probe the dynamical α-β transition process induced by ILs of 1-alkyl-3-methylimidazolium chloride ([C n mim]Cl) and its molecular mechanism. Interestingly, the cation of [C n mim]+ in ILs can spontaneously insert into the peptides as free ions (n ≤ 10) and clusters (n ≥ 11). Such insertion can significantly inhibit the α-β, transition and the inhibiting ability for the clusters is more significant than that of free ions, where [C10mim]+ and [C12mim]+ can reduce the maximum β-sheet content of the peptide by 18.5% and 44.9%, respectively. Furthermore, the correlation analysis and machine learning method were used to develop a predictive model accounting for the influencing factors on the α-β transition, which could accurately predict the effect of ILs on the α-β transition. Overall, these quantitative results may not only deepen the understanding of the role of ILs in the α-β transition but also guide the development of the IL-based treatments for related diseases.
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Affiliation(s)
- Ju Liu
- Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Mesoscience and Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanlei Wang
- Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Mesoscience and Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Feng Huo
- Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Mesoscience and Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Longzihu New Energy Laboratory, Zhengzhou Institute of Emerging Industrial Technology, Henan University, Zhengzhou 450000, China
| | - Hongyan He
- Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Mesoscience and Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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2
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Hu T, Zhang Z, Reches M. A self-standing superhydrophobic material formed by the self-assembly of an individual amino acid. J Colloid Interface Sci 2024; 655:899-908. [PMID: 37979295 DOI: 10.1016/j.jcis.2023.11.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 11/20/2023]
Abstract
HYPOTHESIS There is a growing interest in designing superhydrophobic materials for many applications including self-clean surfaces, separation systems, and antifouling solutions. Peptides and amino acids offer attractive building blocks for these materials since they are biocompatible and biodegradable and can self-assemble into complex ordered structures. EXPERIMENTS AND SIMULATIONS We designed a self-standing superhydrophobic material through the self-assembly of an individual functionalized aromatic amino acid, Cbz-Phe(4F). The self-assembly of Cbz-Phe(4F) was investigated by experimental and computational methods. Moreover, when drop-casted three times on a solid support, it formed a self-standing superhydrophobic material. The mechanical properties and chemical stability of this self-standing superhydrophobic material were demonstrated. FINDINGS The designed Cbz-Phe(4F) self-assembled into fibrous structures in solution. Molecular dynamics (MD) simulations revealed that the fibrous backbone of Cbz-Phe(4F) aggregations was stabilized through hydrogen bonds, whereas the isotropic growth of the aggregates was driven by hydrophobic interactions. Importantly, when drop-casted three times on a solid support, it formed a self-standing superhydrophobic material. Moreover, this material had a high mechanical strength, with a Young's modulus of 53 GPa, resistance to enzymatic degradation, and thermal stability up to 200 ℃. This study provides a simple strategy to generate smart and functional materials by the simple self-assembly of functional individual amino acids.
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Affiliation(s)
- Tan Hu
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Zhuo Zhang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University), Ministry of Education, Wuhan 430070, China.
| | - Meital Reches
- Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
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3
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Rehman SU, Ali R, Zhang H, Zafar MH, Wang M. Research progress in the role and mechanism of Leucine in regulating animal growth and development. Front Physiol 2023; 14:1252089. [PMID: 38046946 PMCID: PMC10691278 DOI: 10.3389/fphys.2023.1252089] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/08/2023] [Indexed: 12/05/2023] Open
Abstract
Leucine, a branched-chain amino acid, is essential in regulating animal growth and development. Recent research has uncovered the mechanisms underlying Leucine's anabolic effects on muscle and other tissues, including its ability to stimulate protein synthesis by activating the mTORC1 signaling pathway. The co-ingestion of carbohydrates and essential amino acids enhances Leucine's anabolic effects. Moreover, Leucine has been shown to benefit lipid metabolism, and insulin sensitivity, making it a promising strategy for preventing and treating metabolic diseases, including type 2 diabetes and obesity. While emerging evidence indicates that epigenetic mechanisms may mediate Leucine's effects on growth and development, more research is needed to elucidate its mechanisms of action fully. Specific studies have demonstrated that Leucine promotes muscle growth and metabolic health in animals and humans, making it a promising therapeutic agent. However, it is essential to note that Leucine supplementation may cause digestive issues or interact with certain medications, and More study is required to determine definitively optimal dosages. Therefore, it is important to understand how Leucine interacts with other nutrients, dietary factors, and lifestyle habits to maximize its benefits. Overall, Leucine's importance in human nutrition is far-reaching, and its potential to prevent muscle loss and enhance athletic performance warrants further investigation.
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Affiliation(s)
| | | | | | | | - Mengzhi Wang
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
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4
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Boutahri Y, Ben Haj Salah K, Tisserand N, Lensen N, Crousse B, Brigaud T. Difluoroalanine: Synthesis, Incorporation in Peptides, and Hydrophobic Contribution Assessment. Org Lett 2023; 25:6937-6941. [PMID: 37695729 DOI: 10.1021/acs.orglett.3c02853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
The straightforward synthesis of chiral (R)- and (S)-difluoroalanine is reported. The key step is a Strecker-type reaction followed by hydrogenolysis, Fmoc protection, and acidic hydrolysis. Peptide coupling reactions at its N- and C-terminal positions provide diastereomerically pure tripeptides. On the basis of hydrophobicity index measurements, the hydrophobic contribution of difluoroalanine in a peptide chain was found to be similar to that of isoleucine for a smaller van der Waals volume of the side chain.
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Affiliation(s)
- Yazid Boutahri
- CY Cergy Paris Université, CNRS, BioCIS UMR 8076, 95000 Cergy-Pontoise, France
- Université Paris-Saclay, CNRS, BioCIS UMR 8076, 91400 Orsay, France
| | - Khoubaib Ben Haj Salah
- CY Cergy Paris Université, CNRS, BioCIS UMR 8076, 95000 Cergy-Pontoise, France
- Université Paris-Saclay, CNRS, BioCIS UMR 8076, 91400 Orsay, France
| | | | - Nathalie Lensen
- CY Cergy Paris Université, CNRS, BioCIS UMR 8076, 95000 Cergy-Pontoise, France
- Université Paris-Saclay, CNRS, BioCIS UMR 8076, 91400 Orsay, France
| | - Benoît Crousse
- Université Paris-Saclay, CNRS, BioCIS UMR 8076, 91400 Orsay, France
| | - Thierry Brigaud
- CY Cergy Paris Université, CNRS, BioCIS UMR 8076, 95000 Cergy-Pontoise, France
- Université Paris-Saclay, CNRS, BioCIS UMR 8076, 91400 Orsay, France
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5
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Haufe G. Selective Synthesis of Monofluorinated Compounds Applying Amine/HF Reagents. CHEM REC 2023; 23:e202300140. [PMID: 37229773 DOI: 10.1002/tcr.202300140] [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: 04/17/2023] [Revised: 05/09/2023] [Indexed: 05/27/2023]
Abstract
For nucleophilic monofluorination, amine/HF reagents such as Et3 N⋅3HF, Pyr⋅9HF (Olah's reagent) and similar combinations belong to the most frequently used fluoride sources, whereupon the selectivity of these reagents can be very different depending of its acidity, the nucleophilicity of the fluoride equivalent, and the structure of the particular substrate. These reagents can be used safely in ordinary chemistry laboratories for nucleophilic substitution reactions by fluoride at sp3 -hybridized carbon centers. For ring opening reactions of epoxides, the regio- and stereoselectivity is very much depending of the nature of the epoxide and the acidity of the HF reagent favoring either SN 1 or SN 2 type reactions. Similarly, the outcome of halofluorination and similar reactions with sulfur or seleno electrophiles can be controlled by the particular combination of the electrophile and the fluoride source. Examples for the application of these reaction types for the synthesis of fluorine-containing analogues of natural products or biologically relevant compounds are in the focus of this personal account.
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Affiliation(s)
- Günter Haufe
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, D-48149, Münster, Germany
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6
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Miles SA, Nillama JA, Hunter L. Tinker, Tailor, Soldier, Spy: The Diverse Roles That Fluorine Can Play within Amino Acid Side Chains. Molecules 2023; 28:6192. [PMID: 37687021 PMCID: PMC10489206 DOI: 10.3390/molecules28176192] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/17/2023] [Accepted: 08/17/2023] [Indexed: 09/10/2023] Open
Abstract
Side chain-fluorinated amino acids are useful tools in medicinal chemistry and protein science. In this review, we outline some general strategies for incorporating fluorine atom(s) into amino acid side chains and for elaborating such building blocks into more complex fluorinated peptides and proteins. We then describe the diverse benefits that fluorine can offer when located within amino acid side chains, including enabling 19F NMR and 18F PET imaging applications, enhancing pharmacokinetic properties, controlling molecular conformation, and optimizing target-binding.
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Affiliation(s)
| | | | - Luke Hunter
- School of Chemistry, The University of New South Wales (UNSW), Sydney 2052, Australia
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7
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Tian J, Fu D, Liu Y, Guan Y, Miao S, Xue Y, Chen K, Huang S, Zhang Y, Xue L, Chong T, Yang P. Rectifying disorder of extracellular matrix to suppress urethral stricture by protein nanofilm-controlled drug delivery from urinary catheter. Nat Commun 2023; 14:2816. [PMID: 37198161 PMCID: PMC10192346 DOI: 10.1038/s41467-023-38282-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 04/24/2023] [Indexed: 05/19/2023] Open
Abstract
Urethral stricture secondary to urethral injury, afflicting both patients and urologists, is initiated by excessive deposition of extracellular matrix in the submucosal and periurethral tissues. Although various anti-fibrotic drugs have been applied to urethral stricture by irrigation or submucosal injection, their clinical feasibility and effectiveness are limited. Here, to target the pathological state of the extracellular matrix, we design a protein-based nanofilm-controlled drug delivery system and assemble it on the catheter. This approach, which integrates excellent anti-biofilm properties with stable and controlled drug delivery for tens of days in one step, ensures optimal efficacy and negligible side effects while preventing biofilm-related infections. In a rabbit model of urethral injury, the anti-fibrotic catheter maintains extracellular matrix homeostasis by reducing fibroblast-derived collagen production and enhancing metalloproteinase 1-induced collagen degradation, resulting in a greater improvement in lumen stenosis than other topical therapies for urethral stricture prevention. Such facilely fabricated biocompatible coating with antibacterial contamination and sustained-drug-release functionality could not only benefit populations at high risk of urethral stricture but also serve as an advanced paradigm for a range of biomedical applications.
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Affiliation(s)
- Juanhua Tian
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China
| | - Delai Fu
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China
| | - Yongchun Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Yibing Guan
- Department of Urological Surgery, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan Province, China
| | - Shuting Miao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Yuquan Xue
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China
| | - Ke Chen
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University (BUAA), 100191, Beijing, China
| | - Shanlong Huang
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China
| | - Yanfeng Zhang
- School of Chemistry, Xi'an Jiaotong University, 710049, Xi'an, China
| | - Li Xue
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China
| | - Tie Chong
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, West Five Road, No. 157, 710004, Xi'an, China.
| | - Peng Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China.
- International Joint Research Center on Functional Fiber and Soft Smart Textile, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China.
- Xi'an Key Laboratory of Polymeric Soft Matter, School of Chemistry and Chemical Engineering, Shaanxi Normal University, 710119, Xi'an, China.
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8
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Chowdhary S, Pelzer T, Saathoff M, Quaas E, Pendl J, Fulde M, Koksch B. Fine‐tuning the antimicrobial activity of β‐hairpin peptides with fluorinated amino acids. Pept Sci (Hoboken) 2023. [DOI: 10.1002/pep2.24306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Affiliation(s)
- Suvrat Chowdhary
- Institute of Chemistry and Biochemistry Freie Universität Berlin Berlin Germany
| | - Tim Pelzer
- Institute of Chemistry and Biochemistry Freie Universität Berlin Berlin Germany
| | - Mareike Saathoff
- Institute of Microbiology and Epizootics, Centre of Infection Medicine Freie Universität Berlin Berlin Germany
| | - Elisa Quaas
- Institute of Chemistry and Biochemistry, Core Facility SupraFAB Freie Universität Berlin Berlin Germany
| | - Johanna Pendl
- Institute of Veterinary Anatomy Freie Universität Berlin Berlin Germany
| | - Marcus Fulde
- Institute of Microbiology and Epizootics, Centre of Infection Medicine Freie Universität Berlin Berlin Germany
- Veterinary Centre for Resistance Research (TZR) Freie Universität Berlin Berlin Germany
| | - Beate Koksch
- Institute of Chemistry and Biochemistry Freie Universität Berlin Berlin Germany
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9
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Cell-free synthesis of amyloid fibrils with infectious properties and amenable to sub-milligram magic-angle spinning NMR analysis. Commun Biol 2022; 5:1202. [DOI: 10.1038/s42003-022-04175-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 10/26/2022] [Indexed: 11/11/2022] Open
Abstract
AbstractStructural investigations of amyloid fibrils often rely on heterologous bacterial overexpression of the protein of interest. Due to their inherent hydrophobicity and tendency to aggregate as inclusion bodies, many amyloid proteins are challenging to express in bacterial systems. Cell-free protein expression is a promising alternative to classical bacterial expression to produce hydrophobic proteins and introduce NMR-active isotopes that can improve and speed up the NMR analysis. Here we implement the cell-free synthesis of the functional amyloid prion HET-s(218-289). We present an interesting case where HET-s(218-289) directly assembles into infectious fibril in the cell-free expression mixture without the requirement of denaturation procedures and purification. By introducing tailored 13C and 15N isotopes or CF3 and 13CH2F labels at strategic amino-acid positions, we demonstrate that cell-free synthesized amyloid fibrils are readily amenable to high-resolution magic-angle spinning NMR at sub-milligram quantity.
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10
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Hohmann T, Dyrks M, Chowdhary S, Weber M, Nguyen D, Moschner J, Koksch B. Gram-Scale Asymmetric Synthesis of Fluorinated Amino Acids Using a Chiral Nickel(II) Complex. J Org Chem 2022; 87:10592-10604. [PMID: 35926217 DOI: 10.1021/acs.joc.2c00522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fluorinated amino acids play an important role in the field of peptide and protein engineering. Although numerous syntheses have been published in recent decades, strategies that allow routine access to fluorinated amino acids on a gram-scale have been poorly described. Furthermore, the described pathways that gain fluorinated amino acids are based on different synthetic strategies, making a uniform approach that uses similar starting materials highly beneficial. Chiral Ni(II) complexes were introduced as powerful tools in the synthesis of noncanonical amino acids. In this work, we present a strategy for the synthesis of a diverse range of fluorinated amino acids based on the corresponding Ni(II) complex from which the products can be obtained in enantiopure form (99% ee) on a gram-scale. In addition, we describe an optimized procedure for the synthesis of alkyl iodide building blocks that are required for the alkylation reactions with the corresponding Ni(II) complex. Finally, we characterized the synthesized fluorinated amino acids with regard to their hydrophobicity and α-helix propensity.
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Affiliation(s)
- Thomas Hohmann
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 20, Berlin, 14195Berlin, Germany
| | - Michael Dyrks
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 20, Berlin, 14195Berlin, Germany
| | - Suvrat Chowdhary
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 20, Berlin, 14195Berlin, Germany
| | - Manuela Weber
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstraße 34/36, Berlin, 14195Berlin, Germany
| | - Duy Nguyen
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 20, Berlin, 14195Berlin, Germany
| | - Johann Moschner
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 20, Berlin, 14195Berlin, Germany
| | - Beate Koksch
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 20, Berlin, 14195Berlin, Germany
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11
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Chowdhary S, Schmidt RF, Sahoo AK, Tom Dieck T, Hohmann T, Schade B, Brademann-Jock K, Thünemann AF, Netz RR, Gradzielski M, Koksch B. Rational design of amphiphilic fluorinated peptides: evaluation of self-assembly properties and hydrogel formation. NANOSCALE 2022; 14:10176-10189. [PMID: 35796261 DOI: 10.1039/d2nr01648f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Advanced peptide-based nanomaterials composed of self-assembling peptides (SAPs) are of emerging interest in pharmaceutical and biomedical applications. The introduction of fluorine into peptides, in fact, offers unique opportunities to tune their biophysical properties and intermolecular interactions. In particular, the degree of fluorination plays a crucial role in peptide engineering as it can be used to control the characteristics of fluorine-specific interactions and, thus, peptide conformation and self-assembly. Here, we designed and explored a series of amphipathic peptides by incorporating the fluorinated amino acids (2S)-4-monofluoroethylglycine (MfeGly), (2S)-4,4-difluoroethylglycine (DfeGly) and (2S)-4,4,4-trifluoroethylglycine (TfeGly) as hydrophobic components. This approach enabled studying the impact of fluorination on secondary structure formation and peptide self-assembly on a systematic basis. We show that the interplay between polarity and hydrophobicity, both induced differentially by varying degrees of side chain fluorination, does affect peptide folding significantly. A greater degree of fluorination promotes peptide fibrillation and subsequent formation of physical hydrogels in physiological conditions. Molecular simulations revealed the key role played by electrostatically driven intra-chain and inter-chain contact pairs that are modulated by side chain fluorination and give insights into the different self-organization behaviour of selected peptides. Our study provides a systematic report about the distinct features of fluorinated oligomeric peptides with potential applications as peptide-based biomaterials.
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Affiliation(s)
- Suvrat Chowdhary
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 20, 14195 Berlin, Germany.
| | - Robert Franz Schmidt
- Institute of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Anil Kumar Sahoo
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Tiemo Tom Dieck
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 20, 14195 Berlin, Germany.
| | - Thomas Hohmann
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 20, 14195 Berlin, Germany.
| | - Boris Schade
- Institute of Chemistry and Biochemistry and Core Facility BioSupraMol, Freie Universität Berlin, Fabeckstraße 36a, 14195 Berlin, Germany
| | - Kerstin Brademann-Jock
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | - Andreas F Thünemann
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | - Roland R Netz
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Michael Gradzielski
- Institute of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Beate Koksch
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 20, 14195 Berlin, Germany.
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12
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Leppkes J, Dimos N, Loll B, Hohmann T, Dyrks M, Wieseke A, Keller BG, Koksch B. Fluorine-induced polarity increases inhibitory activity of BPTI towards chymotrypsin. RSC Chem Biol 2022; 3:773-782. [PMID: 35755190 PMCID: PMC9175108 DOI: 10.1039/d2cb00018k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 05/06/2022] [Indexed: 11/21/2022] Open
Abstract
Substituting the P1 position in bovine pancreatic trypsin inhibitor (BPTI) is known to heavily influence its inhibitory activity towards serine proteases. Side-chain fluorinated aliphatic amino acids have been shown to alter numerous properties of peptides and proteins and thus are of interest in the context of BPTI. In our study, we systematically investigated the site-specific incorporation of non-canonical amino acids into BPTI by microwave-assisted solid-phase peptide synthesis (SPPS). Inhibitor activity of the variants was tested towards the serine protease α-chymotrypsin. We observed enhanced inhibition of two fluorinated BPTIs compared to wild type and hydrocarbon variants. To further investigate the complexes, we performed X-ray structure analysis. Our findings underline the power fluorine offers as a tool in protein engineering to beneficially alter the effects on phenomena as protein-protein interactions.
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Affiliation(s)
- Jakob Leppkes
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 20 14195 Berlin Germany
| | - Nicole Dimos
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry, Structural Biochemistry, Freie Universität Berlin Takustr. 6 14195 Berlin Germany
| | - Bernhard Loll
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry, Structural Biochemistry, Freie Universität Berlin Takustr. 6 14195 Berlin Germany
| | - Thomas Hohmann
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 20 14195 Berlin Germany
| | - Michael Dyrks
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 20 14195 Berlin Germany
| | - Ariane Wieseke
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 20 14195 Berlin Germany
| | - Bettina G Keller
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 22 14195 Berlin Germany
| | - Beate Koksch
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry, Freie Universität Berlin Arnimallee 20 14195 Berlin Germany
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13
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Huhmann S, Nyakatura EK, Rohrhofer A, Moschner J, Schmidt B, Eichler J, Roth C, Koksch B. Systematic Evaluation of Fluorination as Modification for Peptide-Based Fusion Inhibitors against HIV-1 Infection. Chembiochem 2021; 22:3443-3451. [PMID: 34605595 PMCID: PMC9297971 DOI: 10.1002/cbic.202100417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 10/04/2021] [Indexed: 01/01/2023]
Abstract
With the emergence of novel viruses, the development of new antivirals is more urgent than ever. A key step in human immunodeficiency virus type 1 (HIV-1) infection is six-helix bundle formation within the envelope protein subunit gp41. Selective disruption of bundle formation by peptides has been shown to be effective; however, these drugs, exemplified by T20, are prone to rapid clearance from the patient. The incorporation of non-natural amino acids is known to improve these pharmacokinetic properties. Here, we evaluate a peptide inhibitor in which a critical Ile residue is replaced by fluorinated analogues. We characterized the influence of the fluorinated analogues on the biophysical properties of the peptide. Furthermore, we show that the fluorinated peptides can block HIV-1 infection of target cells at nanomolar levels. These findings demonstrate that fluorinated amino acids are appropriate tools for the development of novel peptide therapeutics.
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Affiliation(s)
- Susanne Huhmann
- Freie Universität BerlinDepartment of Biology, Chemistry and PharmacyInstitute of Chemistry and BiochemistryArnimallee 2014195BerlinGermany
| | - Elisabeth K. Nyakatura
- Freie Universität BerlinDepartment of Biology, Chemistry and PharmacyInstitute of Chemistry and BiochemistryArnimallee 2014195BerlinGermany
- Antibody Engineering Tri-Institutional Therapeutics Discovery Institute417 East 68th Street, 19 Floor North, P: 646-888-2003New YorkNY 10021USA
| | - Anette Rohrhofer
- Institute of Clinical Microbiology and HygieneRegensburg University HospitalFranz-Josef-Strauß-Allee 1193053RegensburgGermany
| | - Johann Moschner
- Freie Universität BerlinDepartment of Biology, Chemistry and PharmacyInstitute of Chemistry and BiochemistryArnimallee 2014195BerlinGermany
| | - Barbara Schmidt
- Institute of Clinical Microbiology and HygieneRegensburg University HospitalFranz-Josef-Strauß-Allee 1193053RegensburgGermany
| | - Jutta Eichler
- Friedrich-Alexander-Universität Erlangen-NürnbergDepartment Chemie und PharmazieNikolaus-Fiebiger-Str. 1091058ErlangenGermany
| | - Christian Roth
- Max Planck Institute of Colloids and InterfacesBiomolecular SystemsArnimallee 2214195BerlinGermany
| | - Beate Koksch
- Freie Universität BerlinDepartment of Biology, Chemistry and PharmacyInstitute of Chemistry and BiochemistryArnimallee 2014195BerlinGermany
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14
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Sanchez CA, Gadais C, Diarra S, Bordessa A, Lensen N, Chelain E, Brigaud T. Synthesis of enantiopure α-Tfm-proline and α-Tfm-pipecolic acid from oxazolo-pyrrolidines and -piperidines. Org Biomol Chem 2021; 19:6771-6775. [PMID: 34292288 DOI: 10.1039/d1ob01173a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Enantiopure α-Tfm-proline and α-Tfm-pipecolic acid were synthesized starting from commercially available diesters and ethyl trifluoroacetate. A Strecker type reaction on intermediate chiral Tfm-oxazolo-pyrrolidine and -piperidine provided the corresponding nitrile precursor of enantiopure (R) and (S) α-Tfm-proline and α-Tfm-pipecolic acid. The C-terminal peptide coupling reaction of α-Tfm-pipecolic acid has been successfully achieved.
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Affiliation(s)
- Clément A Sanchez
- CY Cergy Paris Université, CNRS, BioCIS, 95000, Cergy Pontoise, France.
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15
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Lv J, Cheng Y. Fluoropolymers in biomedical applications: state-of-the-art and future perspectives. Chem Soc Rev 2021; 50:5435-5467. [DOI: 10.1039/d0cs00258e] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Biomedical applications of fluoropolymers in gene delivery, protein delivery, drug delivery, 19F MRI, PDT, anti-fouling, anti-bacterial, cell culture, and tissue engineering.
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Affiliation(s)
- Jia Lv
- Shanghai Key Laboratory of Regulatory Biology
- School of Life Sciences
- East China Normal University
- Shanghai
- China
| | - Yiyun Cheng
- Shanghai Key Laboratory of Regulatory Biology
- School of Life Sciences
- East China Normal University
- Shanghai
- China
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16
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Chowdhary S, Moschner J, Mikolajczak DJ, Becker M, Thünemann AF, Kästner C, Klemczak D, Stegemann A, Böttcher C, Metrangolo P, Netz RR, Koksch B. The Impact of Halogenated Phenylalanine Derivatives on NFGAIL Amyloid Formation. Chembiochem 2020; 21:3544-3554. [PMID: 33405360 PMCID: PMC7756607 DOI: 10.1002/cbic.202000373] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/31/2020] [Indexed: 12/12/2022]
Abstract
The hexapeptide hIAPP22-27 (NFGAIL) is known as a crucial amyloid core sequence of the human islet amyloid polypeptide (hIAPP) whose aggregates can be used to better understand the wild-type hIAPP's toxicity to β-cell death. In amyloid research, the role of hydrophobic and aromatic-aromatic interactions as potential driving forces during the aggregation process is controversially discussed not only in case of NFGAIL, but also for amyloidogenic peptides in general. We have used halogenation of the aromatic residue as a strategy to modulate hydrophobic and aromatic-aromatic interactions and prepared a library of NFGAIL variants containing fluorinated and iodinated phenylalanine analogues. We used thioflavin T staining, transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS) to study the impact of side-chain halogenation on NFGAIL amyloid formation kinetics. Our data revealed a synergy between aggregation behavior and hydrophobicity of the phenylalanine residue. This study introduces systematic fluorination as a toolbox to further investigate the nature of the amyloid self-assembly process.
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Affiliation(s)
- Suvrat Chowdhary
- Institute of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2014195BerlinGermany
| | - Johann Moschner
- Institute of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2014195BerlinGermany
| | - Dorian J. Mikolajczak
- Institute of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2014195BerlinGermany
| | - Maximilian Becker
- Department of PhysicsFreie Universität BerlinArnimallee 1414195BerlinGermany
| | - Andreas F. Thünemann
- Federal Institute for Materials Research and Testing (BAM)Unter den Eichen 8712205BerlinGermany
| | - Claudia Kästner
- Federal Institute for Materials Research and Testing (BAM)Unter den Eichen 8712205BerlinGermany
| | - Damian Klemczak
- Institute of PharmacyFreie Universität BerlinKönigin-Luise-Str. 2–414195BerlinGermany
| | - Anne‐Katrin Stegemann
- Institute of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2014195BerlinGermany
| | - Christoph Böttcher
- Institute of Chemistry and Biochemistry and Core Facility BioSupraMolFreie Universität BerlinFabeckstraße 36a14195BerlinGermany
| | - Pierangelo Metrangolo
- Department of ChemistryMaterials and Chemical Engineering “Giulio Natta”Politecnico di MilanoVia L. Mancinelli 720131MilanItaly
| | - Roland R. Netz
- Department of PhysicsFreie Universität BerlinArnimallee 1414195BerlinGermany
| | - Beate Koksch
- Institute of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2014195BerlinGermany
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17
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Zhang X, Gao Y, Hu X, Ji C, Liu Y, Yu J. Recent Advances in Catalytic Enantioselective Synthesis of Fluorinated α‐ and β‐Amino Acids. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000966] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xue‐Xin Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 People's Republic of China
| | - Yang Gao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 People's Republic of China
| | - Xiao‐Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 People's Republic of China
| | - Cong‐Bin Ji
- School of Chemistry and Environmental Sciences Shangrao Normal University Jiangxi 334001 People's Republic of China
| | - Yun‐Lin Liu
- School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 People's Republic of China
| | - Jin‐Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development School of Chemistry and Molecular Engineering East China Normal University Shanghai 200062 People's Republic of China
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education Hainan Normal University Haikou 571158 People's Republic of China
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18
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Rong G, Wang C, Chen L, Yan Y, Cheng Y. Fluoroalkylation promotes cytosolic peptide delivery. SCIENCE ADVANCES 2020; 6:eaaz1774. [PMID: 32851155 PMCID: PMC7423368 DOI: 10.1126/sciadv.aaz1774] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 06/30/2020] [Indexed: 05/10/2023]
Abstract
Cytosolic delivery of peptides remains a challenging task owing to their susceptibility to enzymatic degradation and the existence of multiple intracellular barriers. Here, we report a new strategy to address these issues by decoration of a fluorous tag on the terminal of cargo peptides. The fluorous-tagged peptides were assembled into nanostructures, efficiently internalized by cells via several endocytic pathways and released into the cytosol after endosomal escape. They were relatively stable against enzymatic degradation and showed much higher efficiency than nonfluorinated analogs and cell penetrant peptide-conjugated ones. The proposed strategy also efficiently delivered a proapoptotic peptide into specific sites in the cells and restored the function of cargo peptide after cytosolic delivery. The fluorous-tagged proapoptotic peptide efficiently inhibited tumor growth in vivo. This study provides an efficient fluorination strategy to promote the cytosolic delivery of peptides.
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Affiliation(s)
- Guangyu Rong
- Shanghai Key Laboratory of Regulatory Biology, East China Normal University, Shanghai 200241, China
| | - Changping Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Lijie Chen
- Shanghai Key Laboratory of Regulatory Biology, East China Normal University, Shanghai 200241, China
| | - Yang Yan
- Shanghai Key Laboratory of Regulatory Biology, East China Normal University, Shanghai 200241, China
| | - Yiyun Cheng
- Shanghai Key Laboratory of Regulatory Biology, East China Normal University, Shanghai 200241, China
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Corresponding author.
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19
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Biswas B, Singh PC. The role of fluorocarbon group in the hydrogen bond network, photophysical and solvation dynamics of fluorinated molecules. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2019.109414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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20
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Improved enantioselective gram scale synthesis route to N-Fmoc-protected monofluoroethylglycine. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109453] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Kumar A, Patwari GN. Hydration of Fluorobenzenes: A Molecular Dynamics Simulation Investigation. J Indian Inst Sci 2019. [DOI: 10.1007/s41745-019-00157-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Kumar A, Mahato J, Dixit M, Patwari GN. Progressive Hydrophobicity of Fluorobenzenes. J Phys Chem B 2019; 123:10083-10088. [PMID: 31661279 DOI: 10.1021/acs.jpcb.9b08057] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The potentials of mean force for the dimers of fluorobenzenes sample both π-stacked and T-shaped structures for partially fluorinated benzenes, namely, 1,4-difluorobenzene, 1,3,5-trifluorobenzene, and 1,2,4,5-tetrafluorobenzene, and sample only the T-shaped structures for benzene and hexafluorobenzene. While the free energy for the dimerization in water is very weakly dependent on the number of fluorine atoms, the formation of π-stacked structures is entropy-driven and the T-shaped structures appear due to an enthalpic minimum. Interestingly, the solvation behavior suggests that the accumulation of water around the contact and solvent-separated pairs decreases with the increase in the number of fluorine atoms, which signifies progressive hydrophobicity of fluorobenzenes.
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Affiliation(s)
- Anuj Kumar
- Department of Chemistry , Indian Institute of Technology Bombay , Powai, Mumbai 400076 India.,Prithwi Chand Vigyan College, Jai Prakash Vishwavidyalaya , Chapra , Saran, Bihar 841301 , India
| | - Jaladhar Mahato
- Department of Chemistry , Indian Institute of Technology Bombay , Powai, Mumbai 400076 India
| | - Mayank Dixit
- Department of Chemistry , Indian Institute of Technology Bombay , Powai, Mumbai 400076 India
| | - G Naresh Patwari
- Department of Chemistry , Indian Institute of Technology Bombay , Powai, Mumbai 400076 India
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23
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Malquin N, Rahgoshay K, Lensen N, Chaume G, Miclet E, Brigaud T. CF 2H as a hydrogen bond donor group for the fine tuning of peptide bond geometry with difluoromethylated pseudoprolines. Chem Commun (Camb) 2019; 55:12487-12490. [PMID: 31566647 DOI: 10.1039/c9cc05771d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
CF2H-Pseudoprolines obtained from difluoroacetaldehyde hemiacetal and serine are stable proline surrogates. The consequence of the incorporation of the CF2H group is an important decrease of the trans to cis amide bond isomerization energy and a remarkable stabilisation of the cis conformer by an hydrogen bond.
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Affiliation(s)
- N Malquin
- Laboratory of Chemical Biology (LCB, EA 4505), Université de Cergy-Pontoise, 5 Mail Gay-Lussac, 95000 Cergy-Pontoise, France.
| | - K Rahgoshay
- Laboratory of Chemical Biology (LCB, EA 4505), Université de Cergy-Pontoise, 5 Mail Gay-Lussac, 95000 Cergy-Pontoise, France.
| | - N Lensen
- Laboratory of Chemical Biology (LCB, EA 4505), Université de Cergy-Pontoise, 5 Mail Gay-Lussac, 95000 Cergy-Pontoise, France.
| | - G Chaume
- Laboratory of Chemical Biology (LCB, EA 4505), Université de Cergy-Pontoise, 5 Mail Gay-Lussac, 95000 Cergy-Pontoise, France.
| | - E Miclet
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 75005 Paris, France
| | - T Brigaud
- Laboratory of Chemical Biology (LCB, EA 4505), Université de Cergy-Pontoise, 5 Mail Gay-Lussac, 95000 Cergy-Pontoise, France.
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24
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Ikeda A, Capellan A, Welch JT. The secondary structure of a heptapeptide containing trifluoromethyl-λ 6-tetrafluorosulfanyl substituted amino acids. Org Biomol Chem 2019; 17:8079-8082. [PMID: 31454017 DOI: 10.1039/c9ob01797f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Site specific introduction of the polar hydrophobic trifluoromethyl-λ6-tetrafluorosulfanyl (CF3SF4) group can effectively control the secondary structure of a heptapeptide, the minimum repeat unit of an α-helix. The structural influence of CF3SF4-containing amino acid on the heptapeptide was established using NMR methods.
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Affiliation(s)
- Akari Ikeda
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY 12222, USA.
| | - Aimée Capellan
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY 12222, USA.
| | - John T Welch
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY 12222, USA.
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25
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Hoffmann W, Langenhan J, Huhmann S, Moschner J, Chang R, Accorsi M, Seo J, Rademann J, Meijer G, Koksch B, Bowers MT, von Helden G, Pagel K. Eine intrinsische Hydrophobieskala für Aminosäuren und ihre Anwendung auf fluorierte Verbindungen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813954] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Waldemar Hoffmann
- Freie Universität Berlin Fachbereich für Biologie, Chemie und Pharmazie Takustraße 3 / Königin-Luise-Straße 2+4 14195 Berlin Deutschland
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Abteilung Molekülphysik Faradayweg 4–6 14195 Berlin Deutschland
| | - Jennifer Langenhan
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Abteilung Molekülphysik Faradayweg 4–6 14195 Berlin Deutschland
| | - Susanne Huhmann
- Freie Universität Berlin Fachbereich für Biologie, Chemie und Pharmazie Takustraße 3 / Königin-Luise-Straße 2+4 14195 Berlin Deutschland
| | - Johann Moschner
- Freie Universität Berlin Fachbereich für Biologie, Chemie und Pharmazie Takustraße 3 / Königin-Luise-Straße 2+4 14195 Berlin Deutschland
| | - Rayoon Chang
- Freie Universität Berlin Fachbereich für Biologie, Chemie und Pharmazie Takustraße 3 / Königin-Luise-Straße 2+4 14195 Berlin Deutschland
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Abteilung Molekülphysik Faradayweg 4–6 14195 Berlin Deutschland
| | - Matteo Accorsi
- Freie Universität Berlin Fachbereich für Biologie, Chemie und Pharmazie Takustraße 3 / Königin-Luise-Straße 2+4 14195 Berlin Deutschland
| | - Jongcheol Seo
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Abteilung Molekülphysik Faradayweg 4–6 14195 Berlin Deutschland
- aktuelle Adresse: University of Science and Technology (POSTECH) Fachbereich Chemie 77 Cheongam-ro Pohang 37673 Republik Korea
| | - Jörg Rademann
- Freie Universität Berlin Fachbereich für Biologie, Chemie und Pharmazie Takustraße 3 / Königin-Luise-Straße 2+4 14195 Berlin Deutschland
| | - Gerard Meijer
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Abteilung Molekülphysik Faradayweg 4–6 14195 Berlin Deutschland
| | - Beate Koksch
- Freie Universität Berlin Fachbereich für Biologie, Chemie und Pharmazie Takustraße 3 / Königin-Luise-Straße 2+4 14195 Berlin Deutschland
| | - Michael T. Bowers
- University of California Santa Barbara Department of Chemistry & Biochemistry Santa Barbara California 93106 USA
| | - Gert von Helden
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Abteilung Molekülphysik Faradayweg 4–6 14195 Berlin Deutschland
| | - Kevin Pagel
- Freie Universität Berlin Fachbereich für Biologie, Chemie und Pharmazie Takustraße 3 / Königin-Luise-Straße 2+4 14195 Berlin Deutschland
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Abteilung Molekülphysik Faradayweg 4–6 14195 Berlin Deutschland
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26
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Hoffmann W, Langenhan J, Huhmann S, Moschner J, Chang R, Accorsi M, Seo J, Rademann J, Meijer G, Koksch B, Bowers MT, von Helden G, Pagel K. An Intrinsic Hydrophobicity Scale for Amino Acids and Its Application to Fluorinated Compounds. Angew Chem Int Ed Engl 2019; 58:8216-8220. [PMID: 30958917 DOI: 10.1002/anie.201813954] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 03/01/2019] [Indexed: 11/10/2022]
Abstract
More than 100 hydrophobicity scales have been introduced, with each being based on a distinct condensed-phase approach. However, a comparison of the hydrophobicity values gained from different techniques, and their relative ranking, is not straightforward, as the interactions between the environment and the amino acid are unique to each method. Here, we overcome this limitation by studying the properties of amino acids in the clean-room environment of the gas phase. In the gas phase, entropic contributions from the hydrophobic effect are by default absent and only the polarity of the side chain dictates the self-assembly. This allows for the derivation of a novel hydrophobicity scale, which is based solely on the interaction between individual amino acid units within the cluster and thus more accurately reflects the intrinsic nature of a side chain. This principle can be further applied to classify non-natural derivatives, as shown here for fluorinated amino acid variants.
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Affiliation(s)
- Waldemar Hoffmann
- Freie Universität Berlin, Department of Biology, Chemistry and Pharmacy, Takustrasse 3/Königin-Luise-Strasse 2+4, 14195, Berlin, Germany.,Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Molecular Physics, Faradayweg 4-6, 14195, Berlin, Germany
| | - Jennifer Langenhan
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Molecular Physics, Faradayweg 4-6, 14195, Berlin, Germany
| | - Susanne Huhmann
- Freie Universität Berlin, Department of Biology, Chemistry and Pharmacy, Takustrasse 3/Königin-Luise-Strasse 2+4, 14195, Berlin, Germany
| | - Johann Moschner
- Freie Universität Berlin, Department of Biology, Chemistry and Pharmacy, Takustrasse 3/Königin-Luise-Strasse 2+4, 14195, Berlin, Germany
| | - Rayoon Chang
- Freie Universität Berlin, Department of Biology, Chemistry and Pharmacy, Takustrasse 3/Königin-Luise-Strasse 2+4, 14195, Berlin, Germany.,Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Molecular Physics, Faradayweg 4-6, 14195, Berlin, Germany
| | - Matteo Accorsi
- Freie Universität Berlin, Department of Biology, Chemistry and Pharmacy, Takustrasse 3/Königin-Luise-Strasse 2+4, 14195, Berlin, Germany
| | - Jongcheol Seo
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Molecular Physics, Faradayweg 4-6, 14195, Berlin, Germany.,present address: University of Science and Technology (POSTECH), Department of Chemistry, 77 Cheongam-ro, Pohang, 37673, Korea
| | - Jörg Rademann
- Freie Universität Berlin, Department of Biology, Chemistry and Pharmacy, Takustrasse 3/Königin-Luise-Strasse 2+4, 14195, Berlin, Germany
| | - Gerard Meijer
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Molecular Physics, Faradayweg 4-6, 14195, Berlin, Germany
| | - Beate Koksch
- Freie Universität Berlin, Department of Biology, Chemistry and Pharmacy, Takustrasse 3/Königin-Luise-Strasse 2+4, 14195, Berlin, Germany
| | - Michael T Bowers
- University of California Santa Barbara, Department of Chemistry & Biochemistry, Santa Barbara, California, 93106, USA
| | - Gert von Helden
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Molecular Physics, Faradayweg 4-6, 14195, Berlin, Germany
| | - Kevin Pagel
- Freie Universität Berlin, Department of Biology, Chemistry and Pharmacy, Takustrasse 3/Königin-Luise-Strasse 2+4, 14195, Berlin, Germany.,Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Molecular Physics, Faradayweg 4-6, 14195, Berlin, Germany
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27
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Mei H, Hiramatsu T, Takeda R, Moriwaki H, Abe H, Han J, Soloshonok VA. Expedient Asymmetric Synthesis of (S)-2-Amino-4,4,4-trifluorobutanoic Acid via Alkylation of Chiral Nucleophilic Glycine Equivalent. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.8b00404] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Haibo Mei
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Takahiro Hiramatsu
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan
| | - Ryosuke Takeda
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan
| | - Hiroki Moriwaki
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan
| | - Hidenori Abe
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan
| | - Jianlin Han
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, María Díaz de Haro 3, Plaza Bizkaia, 48013 Bilbao, Spain
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28
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de Freitas MS, Rezaei Araghi R, Brandenburg E, Leiterer J, Emmerling F, Folmert K, Gerling-Driessen UIM, Bardiaux B, Böttcher C, Pagel K, Diehl A, Berlepsch HV, Oschkinat H, Koksch B. The protofilament architecture of a de novo designed coiled coil-based amyloidogenic peptide. J Struct Biol 2018; 203:263-272. [PMID: 29857134 DOI: 10.1016/j.jsb.2018.05.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 05/25/2018] [Accepted: 05/28/2018] [Indexed: 01/15/2023]
Abstract
Amyloid fibrils are polymers formed by proteins under specific conditions and in many cases they are related to pathogenesis, such as Parkinson's and Alzheimer's diseases. Their hallmark is the presence of a β-sheet structure. High resolution structural data on these systems as well as information gathered from multiple complementary analytical techniques is needed, from both a fundamental and a pharmaceutical perspective. Here, a previously reported de novo designed, pH-switchable coiled coil-based peptide that undergoes structural transitions resulting in fibril formation under physiological conditions has been exhaustively characterized by transmission electron microscopy (TEM), cryo-TEM, atomic force microscopy (AFM), wide-angle X-ray scattering (WAXS) and solid-state NMR (ssNMR). Overall, a unique 2-dimensional carpet-like assembly composed of large coexisiting ribbon-like, tubular and funnel-like structures with a clearly resolved protofilament substructure is observed. Whereas electron microscopy and scattering data point somewhat more to a hairpin model of β-fibrils, ssNMR data obtained from samples with selectively labelled peptides are in agreement with both, hairpin structures and linear arrangements.
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Affiliation(s)
- Mônica Santos de Freitas
- Leibniz-Institut für Molekulare Pharmakologie, Department NMR-Supported Structural Biology, Robert-Rössle-Strasse 10, 13125 Berlin, Germany; Freie Universität Berlin, Department of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany; Universidade Federal do Rio de Janeiro, Instituto de Bioquímica Médica Leopoldo de Meis, Centro Nacional de Biologia Estrutural e Bioimagem, Av. Carlos Chagas Filho 373, Rio de Janeiro, Brazil
| | - Raheleh Rezaei Araghi
- Freie Universität Berlin, Department of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany
| | - Enrico Brandenburg
- Freie Universität Berlin, Department of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany
| | - Jork Leiterer
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Franziska Emmerling
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Kristin Folmert
- Freie Universität Berlin, Department of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany
| | - Ulla I M Gerling-Driessen
- Freie Universität Berlin, Department of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany
| | - Benjamin Bardiaux
- Institut Pasteur, Unité de Bioinformatique Structurale, CNRS UMR 3528, 75015 Paris, France
| | - Christoph Böttcher
- Freie Universität Berlin, Research Center for Electron Microscopy, Fabeckstrasse 36a, 14195 Berlin, Germany
| | - Kevin Pagel
- Freie Universität Berlin, Department of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany
| | - Anne Diehl
- Leibniz-Institut für Molekulare Pharmakologie, Department NMR-Supported Structural Biology, Robert-Rössle-Strasse 10, 13125 Berlin, Germany
| | - Hans V Berlepsch
- Freie Universität Berlin, Research Center for Electron Microscopy, Fabeckstrasse 36a, 14195 Berlin, Germany
| | - Hartmut Oschkinat
- Leibniz-Institut für Molekulare Pharmakologie, Department NMR-Supported Structural Biology, Robert-Rössle-Strasse 10, 13125 Berlin, Germany; Freie Universität Berlin, Department of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany.
| | - Beate Koksch
- Freie Universität Berlin, Department of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany.
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29
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Hao J, Milcent T, Retailleau P, Soloshonok VA, Ongeri S, Crousse B. Asymmetric Synthesis of Cyclic Fluorinated Amino Acids. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800255] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jing Hao
- BioCIS, Univ. Paris-Sud, CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Thierry Milcent
- BioCIS, Univ. Paris-Sud, CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles; CNRS UPR 2301; Université Paris-Saclay; 1, avenue de la Terrasse 91198 Gif-sur-Yvette France
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I; Faculty of Chemistry; University of the Basque Country, UPV/EHU; 20018 San Sebastian Spain
| | - Sandrine Ongeri
- BioCIS, Univ. Paris-Sud, CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Benoit Crousse
- BioCIS, Univ. Paris-Sud, CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
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30
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Gadais C, Devillers E, Gasparik V, Chelain E, Pytkowicz J, Brigaud T. Probing the Outstanding Local Hydrophobicity Increases in Peptide Sequences Induced by Incorporation of Trifluoromethylated Amino Acids. Chembiochem 2018. [DOI: 10.1002/cbic.201800088] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Charlène Gadais
- Laboratory of Chemical Biology (LCB, EA 4505); Université Cergy-Pontoise; Mail Gay-Lussac 95000 Cergy-Pontoise cedex France
| | - Emmanuelle Devillers
- Laboratory of Chemical Biology (LCB, EA 4505); Université Cergy-Pontoise; Mail Gay-Lussac 95000 Cergy-Pontoise cedex France
| | - Vincent Gasparik
- Laboratory of Chemical Biology (LCB, EA 4505); Université Cergy-Pontoise; Mail Gay-Lussac 95000 Cergy-Pontoise cedex France
| | - Evelyne Chelain
- Laboratory of Chemical Biology (LCB, EA 4505); Université Cergy-Pontoise; Mail Gay-Lussac 95000 Cergy-Pontoise cedex France
| | - Julien Pytkowicz
- Laboratory of Chemical Biology (LCB, EA 4505); Université Cergy-Pontoise; Mail Gay-Lussac 95000 Cergy-Pontoise cedex France
| | - Thierry Brigaud
- Laboratory of Chemical Biology (LCB, EA 4505); Université Cergy-Pontoise; Mail Gay-Lussac 95000 Cergy-Pontoise cedex France
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31
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Oliver M, Gadais C, García-Pindado J, Teixidó M, Lensen N, Chaume G, Brigaud T. Trifluoromethylated proline analogues as efficient tools to enhance the hydrophobicity and to promote passive diffusion transport of the l-prolyl-l-leucyl glycinamide (PLG) tripeptide. RSC Adv 2018; 8:14597-14602. [PMID: 35540789 PMCID: PMC9079923 DOI: 10.1039/c8ra02511h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 04/11/2018] [Indexed: 01/23/2023] Open
Abstract
The synthesis of four CF3-proline analogues of the PLG peptide is reported. Our results show that the incorporation of trifluoromethylated amino acids (Tfm-AAs) at the N-terminal position of a peptide significantly increases its hydrophobicity. In addition, depending on the relative configuration and the position of the CF3 group, Tfm-AAs can also promote passive diffusion transport.
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Affiliation(s)
- Martin Oliver
- Laboratoire de Chimie Biologique (LCB), Université de Cergy-Pontoise 5 mail Gay-Lussac, Neuville-sur-Oise 95031 Cergy-Pontoise France
| | - Charlène Gadais
- Laboratoire de Chimie Biologique (LCB), Université de Cergy-Pontoise 5 mail Gay-Lussac, Neuville-sur-Oise 95031 Cergy-Pontoise France
| | - Júlia García-Pindado
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST) C/ Baldiri Reixac 10 08028 Barcelona Spain
| | - Meritxell Teixidó
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST) C/ Baldiri Reixac 10 08028 Barcelona Spain
| | - Nathalie Lensen
- Laboratoire de Chimie Biologique (LCB), Université de Cergy-Pontoise 5 mail Gay-Lussac, Neuville-sur-Oise 95031 Cergy-Pontoise France
| | - Grégory Chaume
- Laboratoire de Chimie Biologique (LCB), Université de Cergy-Pontoise 5 mail Gay-Lussac, Neuville-sur-Oise 95031 Cergy-Pontoise France
| | - Thierry Brigaud
- Laboratoire de Chimie Biologique (LCB), Université de Cergy-Pontoise 5 mail Gay-Lussac, Neuville-sur-Oise 95031 Cergy-Pontoise France
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32
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Kondratov IS, Logvinenko IG, Tolmachova NA, Morev RN, Kliachyna MA, Clausen F, Daniliuc CG, Haufe G. Synthesis and physical chemical properties of 2-amino-4-(trifluoromethoxy)butanoic acid - a CF 3O-containing analogue of natural lipophilic amino acids. Org Biomol Chem 2018; 15:672-679. [PMID: 27976770 DOI: 10.1039/c6ob02436j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
2-Amino-2-(trifluoromethoxy)butanoic acid (O-trifluoromethyl homoserine) was synthesized as a racemate and in both enantiomeric forms. The measured pKa and log D values establish the compound as a promising analogue of natural aliphatic amino acids.
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Affiliation(s)
- Ivan S Kondratov
- Enamine Ltd, Chervonotkatska St 78, Kyiv, 02094, Ukraine. and Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Murmanska Str. 1, Kyiv, 02660, Ukraine
| | - Ivan G Logvinenko
- Enamine Ltd, Chervonotkatska St 78, Kyiv, 02094, Ukraine. and Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Murmanska Str. 1, Kyiv, 02660, Ukraine
| | - Nataliya A Tolmachova
- Enamine Ltd, Chervonotkatska St 78, Kyiv, 02094, Ukraine. and Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Murmanska Str. 1, Kyiv, 02660, Ukraine
| | - Roman N Morev
- Enamine Ltd, Chervonotkatska St 78, Kyiv, 02094, Ukraine.
| | | | - Florian Clausen
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, Münster 48149, Germany.
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, Münster 48149, Germany.
| | - Günter Haufe
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, Münster 48149, Germany. and Cells-in-Motion Cluster of Excellence, Universität Münster, Waldeyerstraße 15, 48149 Münster, Germany
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33
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Huang W, Chen J, Hong D, Chen W, Cheng X, Tian Y, Li G. Hydrophosphonodifluoromethylation of Alkenes via Thiyl-Radical/Photoredox Catalysis. J Org Chem 2018; 83:578-587. [DOI: 10.1021/acs.joc.7b02354] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | | | | | | | - Xu Cheng
- State
Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, China
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34
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35
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Berger AA, Völler JS, Budisa N, Koksch B. Deciphering the Fluorine Code-The Many Hats Fluorine Wears in a Protein Environment. Acc Chem Res 2017; 50:2093-2103. [PMID: 28803466 DOI: 10.1021/acs.accounts.7b00226] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Deciphering the fluorine code is how we describe not only the focus of this Account, but also the systematic approach to studying the impact of fluorine's incorporation on the properties of peptides and proteins used by our groups and others. The introduction of fluorine has been shown to impart favorable, but seldom predictable, properties to peptides and proteins, but up until about two decades ago the outcomes of fluorine modification of peptides and proteins were largely left to chance. Driven by the motivation to extend the application of the unique properties of the element fluorine from medicinal and agro chemistry to peptide and protein engineering we have established extensive research programs that enable the systematic investigation of effects that accompany the introduction of fluorine into this class of biopolymers. The introduction of fluorine into amino acids offers a universe of options for modifications with regard to number and position of fluorine substituents in the amino acid side chain. Moreover, it is important to emphasize that the consequences of incorporating the C-F bond into a biopolymer can be attributed to two distinct yet related phenomena: (i) the fluorine substituent can directly engage in intermolecular interactions with its environment and/or (ii) the other functional groups present in the molecule can be influenced by the electron withdrawing nature of this element (intramolecular) and in turn interact differently with their immediate environment (intermolecular). Based on our studies, we have shown that a change in number and/or position of as subtle as one single fluorine substituent has the power to considerably modify key properties of amino acids such as hydrophobicity, polarity, and secondary structure propensity. These properties are crucial factors in peptide and protein engineering, and thus, fluorinated amino acids can be applied to fine-tune properties such as protein folding, proteolytic stability, and protein-protein interactions provided we understand and become able to predict the outcome of a fluorine substitution in this context. With this Account, we attempt to analyze information we gained from our recent projects on how the nature of the fluorine atom and C-F bond influence four key properties of peptides and proteins: peptide folding, protein-protein interactions, ribosomal translation, and protease stability. These results impressively show why the introduction of fluorine creates a new class of amino acids with a repertoire of functionalities that is unique to the world of proteins and in some cases orthogonal to the set of canonical and natural amino acids. Our concluding statements aim to offer a few conserved design principles that have emerged from systematic studies over the last two decades; in this way, we hope to advance the field of peptide and protein engineering based on the judicious introduction of fluorinated building blocks.
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Affiliation(s)
- Allison Ann Berger
- Institute
of Chemistry and Biochemistry − Organic Chemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Jan-Stefan Völler
- Institute
of Chemistry, Technische Universität Berlin, Müller-Breslau-Str. 10, 10623 Berlin Germany
| | - Nediljko Budisa
- Institute
of Chemistry, Technische Universität Berlin, Müller-Breslau-Str. 10, 10623 Berlin Germany
| | - Beate Koksch
- Institute
of Chemistry and Biochemistry − Organic Chemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
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36
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Kasten K, Slawin AMZ, Smith AD. Enantioselective Synthesis of β-Fluoro-β-aryl-α-aminopentenamides by Organocatalytic [2,3]-Sigmatropic Rearrangement. Org Lett 2017; 19:5182-5185. [PMID: 28885031 DOI: 10.1021/acs.orglett.7b02452] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The tetramisole-promoted catalytic enantioselective [2,3]-sigmatropic rearrangement of quaternary ammonium salts bearing a (Z)-3-fluoro-3-arylprop-2-ene group generates, after addition of benzylamine, a range of β-fluoro-β-aryl-α-aminopentenamides containing a stereogenic tertiary fluorine substituent. Cyclic and acyclic nitrogen substituents as well as various aromatic substituents are tolerated, giving the β-fluoro-β-aryl-α-aminopentenamide products in up to 76% yield, 96:4 dr, and 98:2 er.
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Affiliation(s)
- Kevin Kasten
- EaStCHEM, School of Chemistry, University of St Andrews , North Haugh, St Andrews, Fife, KY16 9ST, U.K
| | - Alexandra M Z Slawin
- EaStCHEM, School of Chemistry, University of St Andrews , North Haugh, St Andrews, Fife, KY16 9ST, U.K
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews , North Haugh, St Andrews, Fife, KY16 9ST, U.K
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37
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Oswald S, Suhm MA. Experimental Reference Data for Hexafluorinated Propanol by Exploring an Unusual Intermolecular Torsional Balance. Angew Chem Int Ed Engl 2017; 56:12672-12676. [DOI: 10.1002/anie.201705301] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/26/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Sönke Oswald
- Institute of Physical Chemistry University of Goettingen Tammannstr. 6 37077 Goettingen Germany
| | - Martin A. Suhm
- Institute of Physical Chemistry University of Goettingen Tammannstr. 6 37077 Goettingen Germany
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38
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Oswald S, Suhm MA. Experimental Reference Data for Hexafluorinated Propanol by Exploring an Unusual Intermolecular Torsional Balance. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sönke Oswald
- Institute of Physical Chemistry University of Goettingen Tammannstr. 6 37077 Goettingen Germany
| | - Martin A. Suhm
- Institute of Physical Chemistry University of Goettingen Tammannstr. 6 37077 Goettingen Germany
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39
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Liu H, Dong X, Liu F, Zheng J, Sun Y. Iminodiacetic acid-conjugated nanoparticles as a bifunctional modulator against Zn 2+-mediated amyloid β-protein aggregation and cytotoxicity. J Colloid Interface Sci 2017; 505:973-982. [PMID: 28693098 DOI: 10.1016/j.jcis.2017.06.093] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 06/24/2017] [Accepted: 06/28/2017] [Indexed: 10/19/2022]
Abstract
Alzheimer's disease is characterized by the accumulation of amyloid β-protein (Aβ) fibrils in human brain, and the binding of metal ions, such as Zn2+, is closely associated with the aggregation and cytotoxicity of Aβ. Here, we designed and synthesized iminodiacetic acid-conjugated nanoparticles (IDA-NP) to modulate Aβ42 aggregation and reduce the cytotoxicity accelerated by Zn2+. Results showed that IDA-NP enabled high metal-chelate capacity (752μmol/g) and potent inhibition capability against Aβ42 fibrillation. Zn2+ ions could be completely removed by chelating to IDA-NP, which leads to the recovery of on-pathway Aβ42 fibrillation. Then, the special surface character of IDA-NP inhibited Aβ42 fibrillation. As a result, IDA-NP protected SH-SY5Y cells from the cytotoxicity induced by Zn2+-Aβ42 species, as evidenced by about 80% (from 47.6% to 86.3%) increase of the cell viability. The research proved that IDA-NP was a potent bifunctional nano-modulator for preventing Zn2+-mediated Aβ aggregation and cytotoxicity.
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Affiliation(s)
- Hongchen Liu
- Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xiaoyan Dong
- Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Fufeng Liu
- Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jie Zheng
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, United States
| | - Yan Sun
- Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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40
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Rode S, Hayn M, Röcker A, Sieste S, Lamla M, Markx D, Meier C, Kirchhoff F, Walther P, Fändrich M, Weil T, Münch J. Generation and Characterization of Virus-Enhancing Peptide Nanofibrils Functionalized with Fluorescent Labels. Bioconjug Chem 2017; 28:1260-1270. [DOI: 10.1021/acs.bioconjchem.7b00079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Sascha Rode
- Institute
of Molecular Virology, Ulm University Medical Center, Meyerhofstraße
1, 89081 Ulm, Germany
| | - Manuel Hayn
- Institute
of Molecular Virology, Ulm University Medical Center, Meyerhofstraße
1, 89081 Ulm, Germany
| | - Annika Röcker
- Institute
of Molecular Virology, Ulm University Medical Center, Meyerhofstraße
1, 89081 Ulm, Germany
| | - Stefanie Sieste
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Markus Lamla
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Daniel Markx
- Institute
of Protein Biochemistry, Ulm University, Helmholtzstraße 8/1, 89081 Ulm, Germany
| | | | - Frank Kirchhoff
- Institute
of Molecular Virology, Ulm University Medical Center, Meyerhofstraße
1, 89081 Ulm, Germany
| | | | - Marcus Fändrich
- Institute
of Protein Biochemistry, Ulm University, Helmholtzstraße 8/1, 89081 Ulm, Germany
| | - Tanja Weil
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Jan Münch
- Institute
of Molecular Virology, Ulm University Medical Center, Meyerhofstraße
1, 89081 Ulm, Germany
- Core
Facility Functional Peptidomics, Ulm University Medical Center, Albert-Einstein-Allee
11, 89081 Ulm, Germany
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41
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Tressler CM, Zondlo NJ. Perfluoro-tert-butyl Homoserine Is a Helix-Promoting, Highly Fluorinated, NMR-Sensitive Aliphatic Amino Acid: Detection of the Estrogen Receptor·Coactivator Protein-Protein Interaction by 19F NMR. Biochemistry 2017; 56:1062-1074. [PMID: 28165218 PMCID: PMC5894335 DOI: 10.1021/acs.biochem.6b01020] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Highly fluorinated amino acids can stabilize proteins and complexes with proteins, via enhanced hydrophobicity, and provide novel methods for identification of specific molecular events in complex solutions, via selective detection by 19F NMR and the absence of native 19F signals in biological contexts. However, the potential applications of 19F NMR in probing biological processes are limited both by the strong propensities of most highly fluorinated amino acids for the extended conformation and by the relatively modest sensitivity of NMR spectroscopy, which typically constrains measurements to mid-micromolar concentrations. Herein, we demonstrate that perfluoro-tert-butyl homoserine exhibits a propensity for compact conformations, including α-helix and polyproline helix (PPII), that is similar to that of methionine. Perfluoro-tert-butyl homoserine has nine equivalent fluorines that do not couple to any other nuclei, resulting in a sharp singlet that can be sensitively detected rapidly at low micromolar concentrations. Perfluoro-tert-butyl homoserine was incorporated at sites of leucine residues within the α-helical LXXLL short linear motif of estrogen receptor (ER) coactivator peptides. A peptide containing perfluoro-tert-butyl homoserine at position i + 3 of the ER coactivator LXXLL motif exhibited a Kd of 2.2 μM for the estradiol-bound estrogen receptor, similar to that of the native ligand. 19F NMR spectroscopy demonstrated the sensitive detection (5 μM concentration, 128 scans) of binding of the peptide to the ER and of inhibition of protein-protein interaction by the native ligand or by the ER antagonist tamoxifen. These results suggest diverse potential applications of perfluoro-tert-butyl homoserine in probing protein function and protein-protein interfaces in complex solutions.
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Affiliation(s)
- Caitlin M. Tressler
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Neal J. Zondlo
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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Völler JS, Dulic M, Gerling-Driessen UIM, Biava H, Baumann T, Budisa N, Gruic-Sovulj I, Koksch B. Discovery and Investigation of Natural Editing Function against Artificial Amino Acids in Protein Translation. ACS CENTRAL SCIENCE 2017; 3:73-80. [PMID: 28149956 PMCID: PMC5269655 DOI: 10.1021/acscentsci.6b00339] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Indexed: 05/24/2023]
Abstract
Fluorine being not substantially present in the chemistry of living beings is an attractive element in tailoring novel chemical, biophysical, and pharmacokinetic properties of peptides and proteins. The hallmark of ribosome-mediated artificial amino acid incorporation into peptides and proteins is a broad substrate tolerance, which is assumed to rely on the absence of evolutionary pressure for efficient editing of artificial amino acids. We used the well-characterized editing proficient isoleucyl-tRNA synthetase (IleRS) from Escherichia coli to investigate the crosstalk of aminoacylation and editing activities against fluorinated amino acids. We show that translation of trifluoroethylglycine (TfeGly) into proteins is prevented by hydrolysis of TfeGly-tRNAIle in the IleRS post-transfer editing domain. The remarkable observation is that dissociation of TfeGly-tRNAIle from IleRS is significantly slowed down. This finding is in sharp contrast to natural editing reactions by tRNA synthetases wherein fast editing rates for the noncognate substrates are essential to outcompete fast aa-tRNA dissociation rates. Using a post-transfer editing deficient mutant of IleRS (IleRSAla10), we were able to achieve ribosomal incorporation of TfeGly in vivo. Our work expands the knowledge of ribosome-mediated artificial amino acid translation with detailed analysis of natural editing function against an artificial amino acid providing an impulse for further systematic investigations and engineering of the translation and editing of unusual amino acids.
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Affiliation(s)
- Jan-Stefan Völler
- Institute
of Chemistry and Biochemistry − Organic Chemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
- Department
of Chemistry, Technische Universität
Berlin, Müller-Breslau-Strasse 10, 10623 Berlin, Germany
| | - Morana Dulic
- Department
of Chemistry, Faculty of Science, University
of Zagreb, Horvatovac
102a, 10000 Zagreb, Croatia
| | - Ulla I. M. Gerling-Driessen
- Institute
of Chemistry and Biochemistry − Organic Chemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Hernan Biava
- Department
of Chemistry, Technische Universität
Berlin, Müller-Breslau-Strasse 10, 10623 Berlin, Germany
| | - Tobias Baumann
- Department
of Chemistry, Technische Universität
Berlin, Müller-Breslau-Strasse 10, 10623 Berlin, Germany
| | - Nediljko Budisa
- Department
of Chemistry, Technische Universität
Berlin, Müller-Breslau-Strasse 10, 10623 Berlin, Germany
| | - Ita Gruic-Sovulj
- Department
of Chemistry, Faculty of Science, University
of Zagreb, Horvatovac
102a, 10000 Zagreb, Croatia
| | - Beate Koksch
- Institute
of Chemistry and Biochemistry − Organic Chemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
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43
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Ulbrich D, Daniliuc CG, Haufe G. Synthesis of α,ω-polyfluorinated α-amino acid derivatives and δ,δ-difluoronorvaline. Org Biomol Chem 2016; 14:2755-67. [PMID: 26857261 DOI: 10.1039/c6ob00131a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Intending to synthesize ω,ω-difluoroalkyl amino acid derivatives by oxidative desulfurization-fluorination reactions of suitable arylthio-2-phthalimido butanoates and pentanoates, in addition to small amounts of the target products, mainly α,ω-polyfluorinated amino acid derivatives were formed by additional sulfur-assisted α-fluorination. This novel structural motif was verified spectroscopically as well as by X-ray analysis. A plausible mechanism of formation is suggested. Using a different approach, δ,δ-difluoronorvaline hydrochloride was synthesized with at least 36% enantiomeric excess via deoxofluorination of the corresponding aldehyde.
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Affiliation(s)
- Dirk Ulbrich
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, D-48149 Münster, Germany. and Cells-in-Motion Cluster of Excellence, Westfälische Wilhelms-Universität, Waldeyerstraße 15, D-48149 Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, D-48149 Münster, Germany.
| | - Günter Haufe
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, D-48149 Münster, Germany. and Cells-in-Motion Cluster of Excellence, Westfälische Wilhelms-Universität, Waldeyerstraße 15, D-48149 Münster, Germany
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Perfluoroalkylation of Alkenes by Frustrated Lewis Pairs. Chemistry 2016; 22:17177-17181. [DOI: 10.1002/chem.201604414] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Indexed: 11/07/2022]
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Eustache S, Leprince J, Tufféry P. Progress with peptide scanning to study structure-activity relationships: the implications for drug discovery. Expert Opin Drug Discov 2016; 11:771-84. [PMID: 27310575 DOI: 10.1080/17460441.2016.1201058] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Peptides have gained renewed interest as candidate therapeutics. However, to bring them to a broader clinical use, challenges such as the rational optimization of their pharmacological properties remain. Peptide scanning techniques offer a systematic framework to gain information on the functional role of individual amino acids of a peptide. Due to progress in mastering new chemical synthesis routes targeting amino acid backbone, they are currently diversified. Structure-activity relationship (SAR) analyses such as alanine- or enantioneric- scanning can now be supplemented by N-substitution, lactam cyclisation- or aza-amino scanning procedures addressing not only SAR considerations but also the peptide pharmacological properties. AREAS COVERED This review highlights the different scanning techniques currently available and illustrates how they can impact drug discovery. EXPERT OPINION Progress in peptide scanning techniques opens new perspectives for peptide drug development. It comes with the promise of a paradigm change in peptide drug design in which peptide drugs will be closer to the parent peptides. However, scanning still remains assimilable to a trial and error strategy that could benefit from being combined with specific in silico approaches that start reaching maturity.
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Affiliation(s)
- Stéphanie Eustache
- a INSERM UMR-S 973 , University Paris-Diderot, Sorbonne Paris Cité , Paris , France
| | - Jérôme Leprince
- b INSERM U982 , Regional Platform for Cell Imaging of Normandy (PRIMACEN), University Rouen-Normandy , Mont-Saint-Aignan, France
| | - Pierre Tufféry
- a INSERM UMR-S 973 , University Paris-Diderot, Sorbonne Paris Cité , Paris , France
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Simon J, Pytkowicz J, Lensen N, Chaume G, Brigaud T. Incorporation of Trifluoromethylated Proline and Surrogates into Peptides: Application to the Synthesis of Fluorinated Analogues of the Neuroprotective Glycine-Proline-Glutamate (GPE) Tripeptide. J Org Chem 2016; 81:5381-92. [DOI: 10.1021/acs.joc.6b00704] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julien Simon
- Laboratoire de Chimie Biologique (LCB), Université de Cergy-Pontoise, EA 4505, 5 Mail Gay-Lussac, 95000 Cergy-Pontoise, France
| | - Julien Pytkowicz
- Laboratoire de Chimie Biologique (LCB), Université de Cergy-Pontoise, EA 4505, 5 Mail Gay-Lussac, 95000 Cergy-Pontoise, France
| | - Nathalie Lensen
- Laboratoire de Chimie Biologique (LCB), Université de Cergy-Pontoise, EA 4505, 5 Mail Gay-Lussac, 95000 Cergy-Pontoise, France
| | - Grégory Chaume
- Laboratoire de Chimie Biologique (LCB), Université de Cergy-Pontoise, EA 4505, 5 Mail Gay-Lussac, 95000 Cergy-Pontoise, France
| | - Thierry Brigaud
- Laboratoire de Chimie Biologique (LCB), Université de Cergy-Pontoise, EA 4505, 5 Mail Gay-Lussac, 95000 Cergy-Pontoise, France
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Synthesis of protected enantiopure (R) and (S)-α-trifluoromethylalanine containing dipeptide building blocks ready to use for solid phase peptide synthesis. Amino Acids 2016; 48:1457-68. [PMID: 26920748 DOI: 10.1007/s00726-016-2200-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 02/11/2016] [Indexed: 02/02/2023]
Abstract
Considering the increasing importance of fluorinated peptides, the development of efficient and reliable synthetic methods for the incorporation of unnatural fluorinated amino acids into peptides is a current matter of interest. In this study, we report the convenient Boc/benzyl and Cbz/tert-butyl protection of both enantiomers of the quaternarized amino acid α-trifluoromethylalanine [(R)- and (S)-α-Tfm-Ala]. Because of the deactivation of the nitrogen atom of this synthetic amino acid by the strong electron withdrawing trifluoromethyl group, the peptide coupling on this position is a challenge. In order to provide a robust synthetic methodology for the incorporation of enantiopure (R)- and (S)-α-trifluoromethylalanines into peptides, we report herein the preparation of dipeptides ready to use for solid phase peptide synthesis. The difficult peptide coupling on the nitrogen atom of the α-trifluoromethylalanines was performed in solution phase by means of highly electrophilic amino acid chlorides or mixed anhydrides. The synthetic effectiveness of this fluorinated dipeptide building block strategy is illustrated by the solid phase peptide synthesis (SPPS) of the Ac-Ala-Phe-(R)-α-Tfm-Ala-Ala-NH2 tetrapeptide.
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Botz A, Gasparik V, Devillers E, Hoffmann ARF, Caillon L, Chelain E, Lequin O, Brigaud T, Khemtemourian L. (R)-α-trifluoromethylalanine containing short peptide in the inhibition of amyloid peptide fibrillation. Biopolymers 2015; 104:601-10. [DOI: 10.1002/bip.22670] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 03/16/2015] [Accepted: 05/04/2015] [Indexed: 12/25/2022]
Affiliation(s)
- Alexandra Botz
- Sorbonne Universités, UPMC Univ Paris 06, Laboratoire des Biomolécules; 4 Place Jussieu F-75005 Paris France
- Ecole Normale Supérieure-PSL Research University, Département De Chimie; 24 rue Lhomond F-75005 Paris France
- CNRS, UMR 7203 Laboratoire Des Biomolécules; F-75005 Paris France
| | - Vincent Gasparik
- Laboratoire De Chimie Biologique, Université De Cergy-Pontoise; EA 4505, 5 Mail Gay-Lussac 95000 Cergy-Pontoise France
| | - Emmanuelle Devillers
- Laboratoire De Chimie Biologique, Université De Cergy-Pontoise; EA 4505, 5 Mail Gay-Lussac 95000 Cergy-Pontoise France
| | - Anais R. F. Hoffmann
- Sorbonne Universités, UPMC Univ Paris 06, Laboratoire des Biomolécules; 4 Place Jussieu F-75005 Paris France
- Ecole Normale Supérieure-PSL Research University, Département De Chimie; 24 rue Lhomond F-75005 Paris France
- CNRS, UMR 7203 Laboratoire Des Biomolécules; F-75005 Paris France
| | - Lucie Caillon
- Sorbonne Universités, UPMC Univ Paris 06, Laboratoire des Biomolécules; 4 Place Jussieu F-75005 Paris France
- Ecole Normale Supérieure-PSL Research University, Département De Chimie; 24 rue Lhomond F-75005 Paris France
- CNRS, UMR 7203 Laboratoire Des Biomolécules; F-75005 Paris France
| | - Evelyne Chelain
- Laboratoire De Chimie Biologique, Université De Cergy-Pontoise; EA 4505, 5 Mail Gay-Lussac 95000 Cergy-Pontoise France
| | - Olivier Lequin
- Sorbonne Universités, UPMC Univ Paris 06, Laboratoire des Biomolécules; 4 Place Jussieu F-75005 Paris France
- Ecole Normale Supérieure-PSL Research University, Département De Chimie; 24 rue Lhomond F-75005 Paris France
- CNRS, UMR 7203 Laboratoire Des Biomolécules; F-75005 Paris France
| | - Thierry Brigaud
- Laboratoire De Chimie Biologique, Université De Cergy-Pontoise; EA 4505, 5 Mail Gay-Lussac 95000 Cergy-Pontoise France
| | - Lucie Khemtemourian
- Sorbonne Universités, UPMC Univ Paris 06, Laboratoire des Biomolécules; 4 Place Jussieu F-75005 Paris France
- Ecole Normale Supérieure-PSL Research University, Département De Chimie; 24 rue Lhomond F-75005 Paris France
- CNRS, UMR 7203 Laboratoire Des Biomolécules; F-75005 Paris France
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Gerling-Driessen UIM, Mujkic-Ninnemann N, Ponader D, Schöne D, Hartmann L, Koksch B, Gerling-Driessen UIM, Schöne D, Koksch B, Ponader D, Mujkic-Ninnemann N, Hartmann L. Exploiting Oligo(amido amine) Backbones for the Multivalent Presentation of Coiled-Coil Peptides. Biomacromolecules 2015; 16:2394-402. [PMID: 26114337 DOI: 10.1021/acs.biomac.5b00634] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The investigation of coiled coil formation for one mono- and two divalent peptide-polymer conjugates is presented. Through the assembly of the full conjugates on solid support, monodisperse sequence-defined conjugates are obtained with defined positions and distances between the peptide side chains along the polymeric backbone. A heteromeric peptide design was chosen, where peptide K is attached to the polymer backbone, and coiled-coil formation is only expected through complexation with the complementary peptide E. Indeed, the monovalent peptide K-polymer conjugate displays rapid coiled-coil formation when mixed with the complementary peptide E sequence. The divalent systems show intramolecular homomeric coiled-coil formation on the polymer backbone despite the peptide design. Interestingly, this intramolecular assembly undergoes a conformational rearrangement by the addition of the complementary peptide E leading to the formation of heteromeric coiled coil-polymer aggregates. The polymer backbone acts as a template bringing the covalently bound peptide strands in close proximity to each other, increasing the local concentration and inducing the otherwise nonfavorable formation of intramolecular helical assemblies.
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Affiliation(s)
- Ulla I M Gerling-Driessen
- †Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Nina Mujkic-Ninnemann
- ‡Max Planck Institute of Colloids and Interfaces, Research Campus Golm 14424 Potsdam, Germany
| | - Daniela Ponader
- ‡Max Planck Institute of Colloids and Interfaces, Research Campus Golm 14424 Potsdam, Germany
| | - Daniel Schöne
- †Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Laura Hartmann
- ‡Max Planck Institute of Colloids and Interfaces, Research Campus Golm 14424 Potsdam, Germany
| | - Beate Koksch
- †Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
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Huhmann S, Nyakatura EK, Erdbrink H, Gerling UI, Czekelius C, Koksch B. Effects of single substitutions with hexafluoroleucine and trifluorovaline on the hydrophobic core formation of a heterodimeric coiled coil. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2015.03.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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