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Drouin M, Wadhwani P, Grage SL, Bürck J, Reichert J, Tremblay S, Mayer MS, Diel C, Staub A, Paquin JF, Ulrich AS. Monofluoroalkene-Isostere as a 19 F NMR Label for the Peptide Backbone: Synthesis and Evaluation in Membrane-Bound PGLa and (KIGAKI) 3. Chemistry 2020; 26:1511-1517. [PMID: 31867761 DOI: 10.1002/chem.201905054] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/18/2019] [Indexed: 12/12/2022]
Abstract
Solid-state 19 F NMR is a powerful method to study the interactions of biologically active peptides with membranes. So far, in labelled peptides, the 19 F-reporter group has always been installed on the side chain of an amino acid. Given the fact that monofluoroalkenes are non-hydrolyzable peptide bond mimics, we have synthesized a monofluoroalkene-based dipeptide isostere, Val-Ψ[(Z)-CF=CH]-Gly, and inserted it in the sequence of two well-studied antimicrobial peptides: PGLa and (KIGAKI)3 are representatives of an α-helix and a β-sheet. The conformations and biological activities of these labeled peptides were studied to assess the suitability of monofluoroalkenes for 19 F NMR structure analysis.
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Affiliation(s)
- Myriam Drouin
- PROTEO, CCVC, Département de chimie, Université Laval, 1045 avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Parvesh Wadhwani
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology, P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Stephan L Grage
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology, P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Jochen Bürck
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology, P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Johannes Reichert
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology, P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Sébastien Tremblay
- PROTEO, CCVC, Département de chimie, Université Laval, 1045 avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Marie Sabine Mayer
- PROTEO, CCVC, Département de chimie, Université Laval, 1045 avenue de la Médecine, Québec, Québec, G1V 0A6, Canada.,Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology, P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Christian Diel
- PROTEO, CCVC, Département de chimie, Université Laval, 1045 avenue de la Médecine, Québec, Québec, G1V 0A6, Canada.,Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology, P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Alexander Staub
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology, P. O. Box 3640, 76021, Karlsruhe, Germany
| | - Jean-François Paquin
- PROTEO, CCVC, Département de chimie, Université Laval, 1045 avenue de la Médecine, Québec, Québec, G1V 0A6, Canada
| | - Anne S Ulrich
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology, P. O. Box 3640, 76021, Karlsruhe, Germany
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Salwiczek M, Nyakatura EK, Gerling UIM, Ye S, Koksch B. Fluorinated amino acids: compatibility with native protein structures and effects on protein-protein interactions. Chem Soc Rev 2011; 41:2135-71. [PMID: 22130572 DOI: 10.1039/c1cs15241f] [Citation(s) in RCA: 327] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Fluorinated analogues of the canonical α-L-amino acids have gained widespread attention as building blocks that may endow peptides and proteins with advantageous biophysical, chemical and biological properties. This critical review covers the literature dealing with investigations of peptides and proteins containing fluorinated analogues of the canonical amino acids published over the course of the past decade including the late nineties. It focuses on side-chain fluorinated amino acids, the carbon backbone of which is identical to their natural analogues. Each class of amino acids--aliphatic, aromatic, charged and polar as well as proline--is presented in a separate section. General effects of fluorine on essential properties such as hydrophobicity, acidity/basicity and conformation of the specific side chains and the impact of these altered properties on stability, folding kinetics and activity of peptides and proteins are discussed (245 references).
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Affiliation(s)
- Mario Salwiczek
- Department of Biology, Chemistry, Pharmacy, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany.
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Hoveyda HR, Pinault JF. (2R)- and (2S)-3-Fluoroalanine and TheirN-Methyl Derivatives: Synthesis and Incorporation in Peptide Scaffolds. Org Lett 2006; 8:5849-52. [PMID: 17134288 DOI: 10.1021/ol062434q] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A convergent synthetic methodology has been developed to access both (2S)- and (2R)-3-fluoroalanine and their corresponding N-methyl analogues, in optically pure form, through a common oxazolidinone intermediate that can be obtained from L- or D-serine. In addition, a procedure for incorporation of these unnatural amino acids in peptide scaffolds is also disclosed herein that minimizes the occurrence of beta-elimination during amide bond formation. [reaction: see text]
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Affiliation(s)
- Hamid R Hoveyda
- Tranzyme Pharma Inc., Institut de pharmacologie de Sherbrooke, 3001 12th Avenue Nord, Sherbrooke, Québec J1H 5N4, Canada.
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Yang D, Kuang LR, Cherif A, Tansey W, Li C, Lin WJ, Liu CW, Kim EE, Wallace S. Synthesis of [18F]fluoroalanine and [18F]fluorotamoxifen for imaging breast tumors. J Drug Target 1993; 1:259-67. [PMID: 8069568 DOI: 10.3109/10611869308996084] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
To develop ligands for imaging breast tumors, [18F]fluoro analogue of tamoxifen and [18F]fluoroalanine were radiosynthesized. In vivo biodistribution studies were performed in mammary tumor-bearing rats. In studies on the biodistribution of an [18F]fluoro analogue of tamoxifen, tumor uptake decreased when rats were pretreated with diethylstilbestrol (DES), suggesting that tracer uptake in tumors was receptor-mediated. An estrogen receptor assay indicated that tumors have a receptor density of 7.5 fmol/mg protein. Studies of the distribution of [18F]fluoroalanine in tissue showed that the tumor-to-tissue ratio increases as a function of time. Positron emission tomography (PET) images of tumor-bearing rats demonstrated that tumors can be visualized 1 h after rats are injected with an [18F]fluoro analogue of tamoxifen. PET imaging of pigs after injection of 10 mCi of [18F]fluoro analogue of tamoxifen showed uterine uptake that could be blocked by DES (50 mg). The findings suggest that both radiotracers are useful for imaging breast tumors.
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Affiliation(s)
- D Yang
- Division of Diagnostic Imaging, University of Texas M.D. Anderson Cancer Center, Houston 77030
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Ayi A, Martos-Alcaniz ML, Condom R, Frogier P, Guedj R. Fluorinated amino acids and peptides. Synthesis of 3,3-difluoro-2-amino acids, peptides and cyclodipeptides incorporating 3,3-difluoro-2-aminobutyric acid or 3,3-difluorophenylalanine residues in their structures. J Fluor Chem 1991. [DOI: 10.1016/s0022-1139(00)81249-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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