1
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Ledwoń P, Goldeman W, Hałdys K, Jewgiński M, Calamai G, Rossowska J, Papini AM, Rovero P, Latajka R. Tripeptides conjugated with thiosemicarbazones: new inhibitors of tyrosinase for cosmeceutical use. J Enzyme Inhib Med Chem 2023; 38:2193676. [PMID: 37146256 PMCID: PMC10165932 DOI: 10.1080/14756366.2023.2193676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023] Open
Abstract
The development of skin-care products is recently growing. Cosmetic formulas containing active ingredients with proven efficacy, namely cosmeceuticals, are based on various compounds, including peptides. Different whitening agents featuring anti-tyrosinase activity have been applied in the cosmeceutical field. Despite their availability, their applicability is often limited due to several drawbacks including toxicity, lack of stability, and other factors. In this work, we present the inhibitory effect on diphenolase activity of thiosemicarbazone (TSC)-peptide conjugates. Tripeptides FFY, FWY, and FYY were conjugated with three TSCs bearing one or two aromatic rings via amide bond formation in a solid phase. Compounds were then examined as tyrosinase and melanogenesis inhibitors in murine melanoma B16F0 cell line, followed by the cytotoxicity assays of these cells. In silico investigations explained the differences in the activity, observed among tested compounds. Mushroom tyrosinase was inhibited by TSC1-conjugates at micromolar level, with IC50 lower than this for kojic acid, a widely used reference compound. Up to now, this is the first report regarding thiosemicarbazones conjugated with tripeptides, synthesised for the purpose of tyrosinase inhibition.
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Affiliation(s)
- Patrycja Ledwoń
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wrocław, Poland
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, Department of Neurosciences, Psychology, Drug Research and Child Health Section of Pharmaceutical Sciences and Nutraceutics, University of Florence, Sesto Fiorentino, Italy
| | - Waldemar Goldeman
- Department of Organic and Medicinal Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wrocław, Poland
| | - Katarzyna Hałdys
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wrocław, Poland
| | - Michał Jewgiński
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wrocław, Poland
| | - Greta Calamai
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, Department of Neurosciences, Psychology, Drug Research and Child Health Section of Pharmaceutical Sciences and Nutraceutics, University of Florence, Sesto Fiorentino, Italy
| | - Joanna Rossowska
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, Wrocław, Poland
| | - Anna Maria Papini
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy
| | - Paolo Rovero
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, Department of Neurosciences, Psychology, Drug Research and Child Health Section of Pharmaceutical Sciences and Nutraceutics, University of Florence, Sesto Fiorentino, Italy
| | - Rafał Latajka
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wrocław, Poland
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2
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Jewgiński MP, Makowski M, Pawełczak M, Goldeman W, Trojanowska-Laskowska A, Kafarski P, Latajka R. Synthesis of Hybrid Tripeptide Peptidomimetics Containing Dehydroamino Acid and Aminophosphonic Acid in the Chain and Evaluation of Their Activity toward Cathepsin C. Chem Biodivers 2022; 19:e202101019. [PMID: 35343636 DOI: 10.1002/cbdv.202101019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 03/25/2022] [Indexed: 11/09/2022]
Abstract
Synthesis of a new group of hybrid phosphonodehydropeptides composed of glycyl-(Z)-dehydrophenylalanine and structurally variable aminophosphonates alongside with investigations of their activity towards cathepsin C are presented. Obtained results suggest that the introduction of (Z)-dehydrophenylalanine residue into the short phosphonopeptide chain does induce the ordered conformation. Investigated peptides appeared to act as weak or moderate inhibitors of cathepsin C.
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Affiliation(s)
- Michał Paweł Jewgiński
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspianskiego 27, 50-370, Wroclaw, Poland
| | - Maciej Makowski
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
| | | | - Waldemar Goldeman
- Department of Organic and Medical Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspianskiego 27, 50-370, Wroclaw, Poland
| | | | - Paweł Kafarski
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspianskiego 27, 50-370, Wroclaw, Poland.,Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
| | - Rafał Latajka
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspianskiego 27, 50-370, Wroclaw, Poland
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3
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Gruß H, Feiner RC, Mseya R, Schröder DC, Jewgiński M, Müller KM, Latajka R, Marion A, Sewald N. Peptide stapling by late-stage Suzuki–Miyaura cross-coupling. Beilstein J Org Chem 2022; 18:1-12. [PMID: 35047078 PMCID: PMC8744458 DOI: 10.3762/bjoc.18.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 12/09/2021] [Indexed: 12/19/2022] Open
Abstract
The development of peptide stapling techniques to stabilise α-helical secondary structure motifs of peptides led to the design of modulators of protein–protein interactions, which had been considered undruggable for a long time. We disclose a novel approach towards peptide stapling utilising macrocyclisation by late-stage Suzuki–Miyaura cross-coupling of bromotryptophan-containing peptides of the catenin-binding domain of axin. Optimisation of the linker length in order to find a compromise between both sufficient linker rigidity and flexibility resulted in a peptide with an increased α-helicity and enhanced binding affinity to its native binding partner β-catenin. An increased proteolytic stability against proteinase K has been demonstrated.
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Affiliation(s)
- Hendrik Gruß
- Department of Chemistry, Bielefeld University, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Rebecca C Feiner
- Department of Technology, Bielefeld University, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Ridhiwan Mseya
- Department of Chemistry, Middle East Technical University, 06800, Ankara, Turkey
| | - David C Schröder
- Department of Chemistry, Bielefeld University, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Michał Jewgiński
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wrocław, Poland
| | - Kristian M Müller
- Department of Technology, Bielefeld University, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Rafał Latajka
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wrocław, Poland
| | - Antoine Marion
- Department of Chemistry, Middle East Technical University, 06800, Ankara, Turkey
| | - Norbert Sewald
- Department of Chemistry, Bielefeld University, Universitätsstr. 25, 33615 Bielefeld, Germany
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4
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Hałdys K, Goldeman W, Anger-Góra N, Rossowska J, Latajka R. Monosubstituted Acetophenone Thiosemicarbazones as Potent Inhibitors of Tyrosinase: Synthesis, Inhibitory Studies, and Molecular Docking. Pharmaceuticals (Basel) 2021; 14:ph14010074. [PMID: 33477655 PMCID: PMC7831505 DOI: 10.3390/ph14010074] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/06/2021] [Accepted: 01/11/2021] [Indexed: 12/19/2022] Open
Abstract
A set of 12 monosubstituted acetophenone thiosemicarbazone derivatives (TSCs) were synthesized and their inhibitory properties toward tyrosinase activity were tested. Moreover, their ability to inhibit melanogenesis in the B16F10 murine melanoma cell line was studied. In order to investigate the nature of interactions between the enzyme and the inhibitors, molecular docking to the active site was performed. TSCs 5, 6, 8, and 9 revealed a half maximal inhibitory concentration (IC50) below 1 µM. Compound 6 turned out to be the most potent tyrosinase inhibitor. All investigated compounds showed reversible inhibition of competitive or mixed type. The para-substituted TSCs had higher affinity for the enzyme as compared to their ortho- and meta-analogues. All investigated compounds inhibited melanin production in B16F10 cells at the micromolar level. Molecular docking showed that the sulfur atom of the thiourea moiety penetrates the active site and interacts with copper ions. The above outcomes might be helpful in the design of new tyrosinase inhibitors in the food and cosmetic industries.
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Affiliation(s)
- Katarzyna Hałdys
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, 50-370 Wrocław, Poland
- Correspondence: (K.H.); (R.L.)
| | - Waldemar Goldeman
- Department of Organic and Medicinal Chemistry, Wrocław University of Science and Technology, 50-370 Wrocław, Poland;
| | - Natalia Anger-Góra
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, 53-114 Wrocław, Poland; (N.A.-G.); (J.R.)
| | - Joanna Rossowska
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, 53-114 Wrocław, Poland; (N.A.-G.); (J.R.)
| | - Rafał Latajka
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, 50-370 Wrocław, Poland
- Correspondence: (K.H.); (R.L.)
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5
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Urbańczyk M, Jewgiński M, Krzciuk-Gula J, Góra J, Latajka R, Sewald N. Synthesis and conformational preferences of short analogues of antifreeze glycopeptides (AFGP). Beilstein J Org Chem 2019; 15:1581-1591. [PMID: 31435440 PMCID: PMC6664394 DOI: 10.3762/bjoc.15.162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/12/2019] [Indexed: 01/01/2023] Open
Abstract
Antifreeze glycoproteins are a class of biological agents which enable living at temperatures below the freezing point of the body fluids. Antifreeze glycopeptides usually consist of repeating tripeptide unit (-Ala-Ala-Thr*-), glycosylated at the threonine side chain. However, on the microscopic level, the mechanism of action of these compounds remains unclear. As previous research has shown, antifreeze activity of antifreeze glycopeptides strongly relies on the overall conformation of the molecule as well an on the stereochemistry of amino acid residues. The desired monoglycosylated analogues with acetylated amino termini and the carboxy termini in form of N-methylamide have been synthesized. Conformational nuclear magnetic resonance (NMR) studies of the designed analogues have shown a strong influence of the stereochemistry of amino acid residues on the peptide chain stability, which could be connected to the antifreeze activity of these compounds. A better understanding of the mechanism of action of antifreeze glycopeptides would allow applying these materials, e.g., in food industry and biomedicine.
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Affiliation(s)
- Małgorzata Urbańczyk
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw, PL-50-370, Poland
| | - Michał Jewgiński
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw, PL-50-370, Poland
| | - Joanna Krzciuk-Gula
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw, PL-50-370, Poland
| | - Jerzy Góra
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw, PL-50-370, Poland
| | - Rafał Latajka
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw, PL-50-370, Poland
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, Bielefeld, D-33615, Germany
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6
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Wolińska E, Hałdys K, Góra J, Olszewski TK, Boduszek B, Latajka R. Phosphonic and Phosphinic Acid Derivatives as Novel Tyrosinase Inhibitors: Kinetic Studies and Molecular Docking. Chem Biodivers 2019; 16:e1900167. [DOI: 10.1002/cbdv.201900167] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/29/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Ewa Wolińska
- Department of Bioorganic ChemistryWrocław University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Katarzyna Hałdys
- Department of Bioorganic ChemistryWrocław University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Jerzy Góra
- Department of Bioorganic ChemistryWrocław University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Tomasz K. Olszewski
- Department of Organic ChemistryWrocław University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Bogdan Boduszek
- Department of Organic ChemistryWrocław University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Rafał Latajka
- Department of Bioorganic ChemistryWrocław University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
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7
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Schröder DC, Kracker O, Fröhr T, Góra J, Jewginski M, Nieß A, Antes I, Latajka R, Marion A, Sewald N. 1,4-Disubstituted 1 H-1,2,3-Triazole Containing Peptidotriazolamers: A New Class of Peptidomimetics With Interesting Foldamer Properties. Front Chem 2019; 7:155. [PMID: 30972322 PMCID: PMC6443886 DOI: 10.3389/fchem.2019.00155] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 03/01/2019] [Indexed: 12/25/2022] Open
Abstract
Peptidotriazolamers are hybrid foldamers with features of peptides and triazolamers, containing alternation of amide bonds and 1,4-disubstituted 1H-1,2,3-triazoles with conservation of the amino acid side chains. We report on the synthesis of a new class of peptidomimetics, containing 1,4-disubstituted 1H-1,2,3-triazoles in alternation with amide bonds and the elucidation of their conformational properties in solution. Based on enantiomerically pure propargylamines bearing the stereogenic center in the propargylic position and α-azido esters, building blocks were obtained by copper-catalyzed azide-alkyne cycloaddition. With these building blocks the peptidotriazolamers were readily available by solution phase synthesis. A panel of homo- and heterochiral tetramers, hexamers, and heptamers was synthesized and the heptamer Boc-Ala-Val-Ψ[4Tz]Phe-LeuΨ[4Tz]Phe-LeuΨ[4Tz]Val-OAll as well as an heterochiral and a Gly-containing equivalent were structurally characterized by NMR-based molecular dynamics simulations using a specifically tailored force field to determine their conformational and solvation properties. All three variants adopt a compact folded conformation in DMSO as well as in water. In addition to the heptamers we predicted the conformational behavior of similar longer oligomers i.e., Boc-Ala-(AlaΨ[4Tz]Ala)6-OAll as well as Boc-Ala-(d-AlaΨ[4Tz]Ala)6-OAll and Boc-Ala-(GlyΨ[4Tz]Ala)6-OAll. Our calculations predict a clear secondary structure of the first two molecules in DMSO that collapses in water due to the hydrophobic character of the side chains. The homochiral compound folds into a regular helical structure and the heterochiral one shows a twisted “S”-shape, while the Gly variant exhibits no clear secondary structure.
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Affiliation(s)
- David C Schröder
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Oliver Kracker
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Tanja Fröhr
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Jerzy Góra
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Bielefeld, Germany.,Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Michał Jewginski
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Anke Nieß
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Iris Antes
- Center for Integrated Protein Science, TUM School of Life Sciences, TU Munich, Freising, Germany
| | - Rafał Latajka
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Antoine Marion
- Center for Integrated Protein Science, TUM School of Life Sciences, TU Munich, Freising, Germany.,Department of Chemistry, Middle East Technical University, Ankara, Turkey
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Bielefeld, Germany
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8
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Hałdys K, Latajka R. Thiosemicarbazones with tyrosinase inhibitory activity. Medchemcomm 2019; 10:378-389. [PMID: 31015905 DOI: 10.1039/c9md00005d] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 02/01/2019] [Indexed: 01/20/2023]
Abstract
Tyrosinase plays an essential role in melanogenesis. Excess production of melanin can be a reason for hyperpigmentation skin disorders in mammals and enzymatic browning in plant-derived foods. Catalyzing the rate-limiting step of melanin synthesis, tyrosinase has become the most studied target for melanogenesis inhibition. Over the past ten years, a number of synthetic thiosemicarbazone derivatives have been reported to possess strong tyrosinase inhibitory properties with IC50 values below 1 μM, placing them among the most potent tyrosinase inhibitors. This review gives an overview of tyrosinase activity and describes tyrosinase-inhibiting thiosemicarbazones in terms of their structure-activity relationships, kinetics of enzyme inhibition and mechanism of action. Results of the studies of thiosemicarbazones as tyrosinase inhibitors from over 20 research articles have been analyzed, compared and summarized in the present paper. Using thiosemicarbazones as tyrosinase inhibitors is a promising approach in developing anti-melanogenetic agents for skin-whitening cosmetics and anti-browning agents for food.
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Affiliation(s)
- Katarzyna Hałdys
- Wrocław University of Science and Technology , Department of Bioorganic Chemistry , Wybrzeże Wyspiańskiego 27 , 50-370 , Wrocław , Poland .
| | - Rafał Latajka
- Wrocław University of Science and Technology , Department of Bioorganic Chemistry , Wybrzeże Wyspiańskiego 27 , 50-370 , Wrocław , Poland .
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9
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Malik-Gajewska M, Trynda J, Zierkiewicz W, Helios K, Latajka R, Wietrzyk J, Michalska D. Picoplatin-based complexes with the bioactive orotate and 5-fluoroorotate ligands: Synthesis, DFT calculations, structure, spectroscopic characterization and in vitro cytotoxicity. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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10
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Marion A, Góra J, Kracker O, Fröhr T, Latajka R, Sewald N, Antes I. Amber-Compatible Parametrization Procedure for Peptide-like Compounds: Application to 1,4- and 1,5-Substituted Triazole-Based Peptidomimetics. J Chem Inf Model 2017; 58:90-110. [PMID: 29112399 DOI: 10.1021/acs.jcim.7b00305] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Peptidomimetics are molecules of particular interest in the context of drug design and development. They are proteolytically and metabolically more stable than their natural peptide counterparts but still offer high specificity toward their biological targets. In recent years, 1,4- and 1,5-disubstituted 1,2,3-triazole-based peptidomimetics have emerged as promising lead compounds for the design of various inhibitory and tumor-targeting molecules as well as for the synthesis of peptide analogues. The growing popularity of triazole-based peptidomimetics and a constantly broadening range of their application generated a demand for elaborate theoretical investigations by classical molecular dynamics simulations and molecular docking. Despite this rising interest, accurate and coherent force field parameters for triazole-based peptidomimetics are still lacking. Here, we report the first complete set of parameters dedicated to this group of compounds, named TZLff. This parametrization is compatible with the latest version of the AMBER force field (ff14SB) and can be readily applied for the modeling of pure triazole-based peptidomimetics as well as natural peptide sequences containing one or more triazole-based modifications in their backbone. The parameters were optimized to reproduce HF/6-31G* electrostatic potentials as well as MP2/cc-pVTZ equilibrium Hessian matrices and conformational potential energy surfaces through the use of a genetic algorithm-based search and least-squares fitting. Following the standards of AMBER, we introduce residue building units, thus allowing the user to define any given sequence of triazole-based peptidomimetics. Validation of the parameter set against ab initio- and NMR-based reference systems shows that we obtain fairly accurate results, which properly capture the conformational features of triazole-based peptidomimetics. The successful and efficient parametrization strategy developed in this work is general enough to be applied in a straightforward manner for parametrization of other peptidomimetics and, potentially, any polymeric assemblies.
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Affiliation(s)
- Antoine Marion
- Center for Integrated Protein Science Munich at the Department of Biosciences, Technische Universität München , Emil-Erlenmeyer-Forum 8, D-85354 Freising, Germany
| | - Jerzy Góra
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University , Universitätsstraße 25, D-33615 Bielefeld, Germany.,Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wroclaw University of Science and Technology , Wybrzeze Wyspianskiego 27, PL-50-370 Wroclaw, Poland
| | - Oliver Kracker
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University , Universitätsstraße 25, D-33615 Bielefeld, Germany
| | - Tanja Fröhr
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University , Universitätsstraße 25, D-33615 Bielefeld, Germany
| | - Rafał Latajka
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wroclaw University of Science and Technology , Wybrzeze Wyspianskiego 27, PL-50-370 Wroclaw, Poland
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University , Universitätsstraße 25, D-33615 Bielefeld, Germany
| | - Iris Antes
- Center for Integrated Protein Science Munich at the Department of Biosciences, Technische Universität München , Emil-Erlenmeyer-Forum 8, D-85354 Freising, Germany
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11
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Kracker O, Góra J, Krzciuk-Gula J, Marion A, Neumann B, Stammler HG, Nieß A, Antes I, Latajka R, Sewald N. 1,5-Disubstituted 1,2,3-Triazole-Containing Peptidotriazolamers: Design Principles for a Class of Versatile Peptidomimetics. Chemistry 2017; 24:953-961. [PMID: 29160605 DOI: 10.1002/chem.201704583] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Indexed: 12/24/2022]
Abstract
Peptidotriazolamers are hybrid foldamers combining features of peptides and triazolamers-repetitive peptidomimetic structures with triazoles replacing peptide bonds. We report on the synthesis of a new class of peptidomimetics, containing 1,5-disubstituted 1,2,3-triazoles in an alternating fashion with amide bonds and the analysis of their conformation in solid state and solution. Homo- or heterochiral peptidotriazolamers were obtained from enantiomerically pure propargylamines with stereogenic centers in the propargylic position and α-azido esters by ruthenium-catalyzed azide-alkyne cycloaddition (RuAAC) under microwave conditions in high yields. With such building blocks the peptidotriazolamers are readily available by solution phase synthesis. While the conformation of the homochiral peptidotriazolamer Boc-Ala[5Tz]Phe-Val[5Tz]Ala-Leu[5Tz]Val-OBzl resembles that of a β VIa1 turn, the heterochiral peptidotriazolamer Boc-d-Ala[5Tz]Phe-d-Val[5Tz]Ala-d-Leu[5Tz]Val-OBzl adopts a polyproline-like repetitive structure.
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Affiliation(s)
- Oliver Kracker
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, PO Box 100131, 33501, Bielefeld, Germany
| | - Jerzy Góra
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, PO Box 100131, 33501, Bielefeld, Germany.,Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370, Wrocław, Poland
| | - Joanna Krzciuk-Gula
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, PO Box 100131, 33501, Bielefeld, Germany.,Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370, Wrocław, Poland
| | - Antoine Marion
- Center for Integrated Protein Science, Department of Biosciences, TU Munich, Emil-Erlenmeyer-Forum 8, 85354, Freising, Germany
| | - Beate Neumann
- Inorganic and Structural Chemistry, Department of Chemistry, Bielefeld University, PO Box 100131, 33501, Bielefeld, Germany
| | - Hans-Georg Stammler
- Inorganic and Structural Chemistry, Department of Chemistry, Bielefeld University, PO Box 100131, 33501, Bielefeld, Germany
| | - Anke Nieß
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, PO Box 100131, 33501, Bielefeld, Germany
| | - Iris Antes
- Center for Integrated Protein Science, Department of Biosciences, TU Munich, Emil-Erlenmeyer-Forum 8, 85354, Freising, Germany
| | - Rafał Latajka
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370, Wrocław, Poland
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, PO Box 100131, 33501, Bielefeld, Germany
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Lenartowicz P, Makowski M, Oszywa B, Haremza K, Latajka R, Pawełczak M, Kafarski P. Addition of thiols to the double bond of dipeptide C-terminal dehydroalanine as a source of new inhibitors of cathepsin C. Biochimie 2017; 139:46-55. [PMID: 28528273 DOI: 10.1016/j.biochi.2017.05.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 05/15/2017] [Indexed: 11/26/2022]
Abstract
Addition of thiols to double bond of glycyl-dehydroalanine and phenyl-dehydroalanine esters provided micromolar inhibitors of cathepsin C. The structure-activity studies indicated that dipeptides containing N-terminal phenylalanine exhibit higher affinity towards the enzyme. A series of C-terminal S-substituted cysteines are responsible for varying interaction with S1 binding pocket of cathepsin C. Depending on diastereomer these compounds most likely act as slowly reacting substrates or competitive inhibitors. This was proved by TLC analysis of the medium in which interaction of methyl (S)-phenylalanyl-(R,S)-(S-adamantyl)cysteinate (7i) with the enzyme was studied. Molecular modeling enabled to establish their mode of binding showed that S2 pocket is long and narrow and accommodates phenyl group of phenylalanine while significantly spacious sites located at the surface of the enzyme (one of them being S1 pocket) bind the adamantyl moiety oriented in different direction for each stereoisomer. Finally replacement of carboxymethyl moiety of methyl (S)-phenylalanyl-(R,S)-(S-phenyl)cysteinate (7c) with nitrile group provided about 650-times more potent inhibitor of cathepsin C indicating that the studied C-terminal S-substituted cysteines are good activity probes for S1 binding pocket of this enzyme.
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Affiliation(s)
- Paweł Lenartowicz
- Faculty of Chemistry, Opole University, Oleska 48, 45-052 Opole, Poland.
| | - Maciej Makowski
- Faculty of Chemistry, Opole University, Oleska 48, 45-052 Opole, Poland
| | - Bartosz Oszywa
- Faculty of Chemistry, Opole University, Oleska 48, 45-052 Opole, Poland
| | - Kinga Haremza
- Faculty of Chemistry, Department of Bioorganic Chemistry, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Rafał Latajka
- Faculty of Chemistry, Department of Bioorganic Chemistry, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | | | - Paweł Kafarski
- Faculty of Chemistry, Department of Bioorganic Chemistry, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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Lamch Ł, Tylus W, Jewgiński M, Latajka R, Wilk KA. Location of Varying Hydrophobicity Zinc(II) Phthalocyanine-Type Photosensitizers in Methoxy Poly(ethylene oxide) and Poly(l-lactide) Block Copolymer Micelles Using 1H NMR and XPS Techniques. J Phys Chem B 2016; 120:12768-12780. [PMID: 27973818 DOI: 10.1021/acs.jpcb.6b10267] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrophobic zinc(II) phthalocyanine-type derivatives, solubilized in polymeric micelles (PMs), provide a befitting group of so-called nanophotosensitizers, suitable for a variety of photodynamic therapy (PDT) protocols. The factors that influence the success of such products in PDT are the location of the active cargo in the PMs and the nanocarrier-enhanced ability to safely interact with biological systems and fulfill their therapeutic functions. Therefore, the aim of this work was to determine the solubilization loci of three phthalocyanines of varying hydrophobicity, i.e., zinc(II) phthalocyanine (ZnPc), along with its tetrasulfonic acid (ZnPc-sulfo4) and perfluorinated (ZnPcF16) derivatives, loaded in polymeric micelles of methoxy poly(ethylene oxide)-b-poly(l-lactide) (mPEG-b-PLLA), by means of 1H nuclear magnetic resonance (NMR) and X-ray photoelectron spectroscopy (XPS) combined with ion sputtering. Furthermore, the microenvironment influence upon the chemical and physical status of the solubilized cargo in PMs, expressed by photobleaching and reactive oxygen species (ROS) generation comparing to the same properties of native cargoes in solution, was also evaluated and discussed in regards to the probing location data. The studied phthalocyanine-loaded PMs exhibited good physical stability, high drug-loading efficiency, and a size of less than ca. 150 nm with low polydispersity indices. The formation of polymeric micelles and the solubilization locus were investigated by 1H NMR and XPS. ZnPc localized within the PM core, whereas both ZnPcF16 and ZnPc-sulfo4 - in the corona of PMs. We proved that the cargo locus is crucial for the photochemical properties of the studied phthalocyanines; the increase in photostability and ability to generate ROS in micellar solution compared to free photosensitizer was most significant for the photosensitizer in the PM core. Our results indicate the role of the cargo location in the PM microenvironment and demonstrate that such attempts are fundamental for improving the properties of photosensitizers and their assumed efficiency as nanophotosensitizers in PDT.
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Affiliation(s)
- Łukasz Lamch
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Technology , Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Włodzimierz Tylus
- Department of Advanced Material Technologies, Faculty of Chemistry, Wrocław University of Technology , Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Michał Jewgiński
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Technology , Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Rafał Latajka
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Technology , Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Kazimiera A Wilk
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Technology , Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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Urbańczyk M, Góra J, Latajka R, Sewald N. Antifreeze glycopeptides: from structure and activity studies to current approaches in chemical synthesis. Amino Acids 2016; 49:209-222. [PMID: 27913993 PMCID: PMC5274654 DOI: 10.1007/s00726-016-2368-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 11/18/2016] [Indexed: 01/02/2023]
Abstract
Antifreeze glycopeptides (AFGPs) are a class of biological antifreeze agents found predominantly in Arctic and Antarctic species of fish. They possess the ability to regulate ice nucleation and ice crystal growth, thus creating viable life conditions at temperatures below the freezing point of body fluids. AFGPs usually consist of 4–55 repetitions of the tripeptide unit Ala–Ala–Thr that is O-glycosylated at the threonine side chains with β-d-galactosyl-(1 → 3)-α-N-acetyl-d-galactosamine. Due to their interesting properties and high antifreeze activity, they have many potential applications, e.g., in food industry and medicine. Current research is focused towards understanding the relationship between the structural preferences and the activity of the AFGPs, as well as developing time and cost efficient ways of synthesis of this class of molecules. Recent computational studies in conjunction with experimental results from NMR and THz spectroscopies were a possible breakthrough in understanding the mechanism of action of AFGPs. At the moment, as a result of these findings, the focus of research is shifted towards the analysis of behaviour of the hydration shell around AFGPs and the impact of water-dynamics retardation caused by AFGPs on ice crystal growth. In the field of organic synthesis of AFGP analogues, most of the novel protocols are centered around solid-phase peptide synthesis and multiple efforts are made to optimize this approach. In this review, we present the current state of knowledge regarding the structure and activity of AFGPs, as well as approaches to organic synthesis of these molecules with focus on the most recent developments.
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Affiliation(s)
- Małgorzata Urbańczyk
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże St. Wyspiańskiego 29, 50-370, Wrocław, Poland
| | - Jerzy Góra
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże St. Wyspiańskiego 29, 50-370, Wrocław, Poland
| | - Rafał Latajka
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże St. Wyspiańskiego 29, 50-370, Wrocław, Poland.
| | - Norbert Sewald
- Organic Chemistry III, Department of Chemistry, Bielefeld University, Universitätsstrasse 25, 33615, Bielefeld, Germany.
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15
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Buczek A, Makowski M, Jewgiński M, Latajka R, Kupka T, Broda MA. Toward engineering efficient peptidomimetics. Screening conformational landscape of two modified dehydroaminoacids. Biopolymers 2016; 101:28-40. [PMID: 23606332 DOI: 10.1002/bip.22264] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Accepted: 04/12/2013] [Indexed: 11/11/2022]
Abstract
Effective peptidomimetics should posses structural rigidity and appropriate interaction pattern leading to potential spatial and electronic matching to the target receptor site. Rational design of such small bioactive molecules could push chemical synthesis and molecular modeling toward faster progress in medicinal chemistry. Conformational properties of N-t-butoxycarbonyl-glycine-(E/Z)-dehydrophenylalanine N',N'-dimethylamides (Boc-Gly-(E/Z)-ΔPhe-NMe2 ) in chloroform were studied by NMR and IR spectroscopy. The experimental findings were supported by extensive calculations at DFT(B3LYP, M06-2X) and MP2 levels of theory and the β-turn tendency for both isomers of the studied dipeptide were determined in vacuum and in solution. The theoretical data and experimental IR results were used as an additional information for the NMR-based determination of the detailed solution conformations of the peptides. The obtained results reveal that N-methylation of C-terminal amide group changes dramatically the conformational properties of studied dehydropeptides. Theoretical conformational analysis reveals that the tendency to adopt β-turn conformations is much weaker for the N-methylated Z isomer (Boc-Gly-(Z)-ΔPhe-NMe2 ), both in vacuum and in polar environment. On the contrary, N-methylated E isomer (Boc-Gly-(E)-ΔPhe-NMe2 ) can easily adopt β-turn conformation, but the backbone torsion angles (φ1, ψ1, φ2, ψ2) are off the limits for common β-turn types.
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Affiliation(s)
- Aneta Buczek
- Department of Physical Chemistry and Molecular Modeling, Faculty of Chemistry, University of Opole, Oleska 48, 45-052, Opole, Poland
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16
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Dudka I, Kossowska B, Senhadri H, Latajka R, Hajek J, Andrzejak R, Antonowicz-Juchniewicz J, Gancarz R. Metabonomic analysis of serum of workers occupationally exposed to arsenic, cadmium and lead for biomarker research: a preliminary study. Environ Int 2014; 68:71-81. [PMID: 24713610 DOI: 10.1016/j.envint.2014.03.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 03/17/2014] [Accepted: 03/18/2014] [Indexed: 05/20/2023]
Abstract
Environmental metabonomics is the application of metabonomics to characterize the interactions of organisms with their environment. Metabolic profiling is an exciting addition to the armory of the epidemiologist for the discovery of new disease risk biomarkers and diagnostics. This work is a continuation of research searching for preclinical serum markers in a group of 389 healthy smelter workers exposed to lead, cadmium and arsenic. Changes in the metabolic profiles were studied using Proton Nuclear Magnetic Resonance Spectroscopy on pooled serum samples from both the metal exposed and control groups. These multivariate metabonomic datasets were analyzed with Principal Component Analysis and Partial Least Squares Discriminant Analysis. Analysis of metabolic profiles of people exposed to heavy metals suggests energy metabolism disturbance induced by heavy metals. Changes in lipid fraction (very-low-density lipoprotein - VLDL, low-density lipoprotein - LDL), unsaturated lipids and in the level of amino acids suggest perturbation of the metabolism of lipids and amino acids. This study illustrated the high reliability of NMR-based metabonomic profiling on the study of the biochemical effects induced by the mixture of heavy metals. This approach is capable of identifying intermediate biomarkers of response to toxicants at environmental/occupational concentrations, paving the way to its use in a monitoring of smelter workers exposed to low doses of lead, cadmium and arsenic.
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Affiliation(s)
- Ilona Dudka
- Organic and Pharmaceutical Technology Group, Department of Chemistry, Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Barbara Kossowska
- Wroclaw Medical University, Wybrzeże L. Pasteura 1, 50-367 Wrocław, Poland.
| | - Hanna Senhadri
- Institute of Biomedical Engineering and Instrumentation, Faculty of Fundamental Problems of Technology, Wrocław University of Technology, Plac Grunwaldzki 13, 50-377 Wrocław, Poland.
| | - Rafał Latajka
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
| | - Julianna Hajek
- Organic and Pharmaceutical Technology Group, Department of Chemistry, Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Ryszard Andrzejak
- Department of Internal and Occupational Medicine, Wroclaw Medical University, Wybrzeże L. Pasteura 4, 50-367 Wrocław, Poland.
| | - Jolanta Antonowicz-Juchniewicz
- Department of Internal and Occupational Medicine, Wroclaw Medical University, Wybrzeże L. Pasteura 4, 50-367 Wrocław, Poland.
| | - Roman Gancarz
- Organic and Pharmaceutical Technology Group, Department of Chemistry, Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
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17
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Jewgiński M, Krzciuk-Gula J, Makowski M, Latajka R, Kafarski P. Conformation of dehydropentapeptides containing four achiral amino acid residues - controlling the role of L-valine. Beilstein J Org Chem 2014; 10:660-6. [PMID: 24778717 PMCID: PMC3999861 DOI: 10.3762/bjoc.10.58] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 02/05/2014] [Indexed: 12/01/2022] Open
Abstract
Structural studies of pentapeptides containing an achiral block, built from two dehydroamino acid residues (ΔZPhe and ΔAla) and two glycines, as well as one chiral L-Val residue were performed using NMR spectroscopy. The key role of the L-Val residue in the generation of the secondary structure of peptides is discussed. The obtained results suggest that the strongest influence on the conformation of peptides arises from a valine residue inserted at the C-terminal position. The most ordered conformation was found for peptide Boc-Gly-ΔAla-Gly-ΔZPhe-Val-OMe (3), which adopts a right-handed helical conformation.
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Affiliation(s)
- Michał Jewgiński
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Joanna Krzciuk-Gula
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Maciej Makowski
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
| | - Rafał Latajka
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Paweł Kafarski
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
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18
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Lisowski M, Jaremko Ł, Jaremko M, Mazur A, Latajka R, Makowski M. Effect of the ΔPhe residue configuration on a didehydropeptides conformation: A combined CD and NMR study. Biopolymers 2010; 93:1055-64. [DOI: 10.1002/bip.21522] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Pluskota-Karwatka D, Pawłowicz A, Bruszyńska M, Greszkiewicz A, Latajka R, Kronberg L. Identification of Adducts Formed in the Reactions of Malonaldehyde-glyoxal and Malonaldehyde-methylglyoxal with Adenosine and Calf Thymus DNA. Chem Biodivers 2010; 7:959-74. [DOI: 10.1002/cbdv.200800320] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Latajka R, Jewginski M, Makowski M, Pawełczak M, Huber T, Sewald N, Kafarski P. Pentapeptides containing two dehydrophenylalanine residues--synthesis, structural studies and evaluation of their activity towards cathepsin C. J Pept Sci 2008; 14:1084-95. [PMID: 18523964 DOI: 10.1002/psc.1045] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Synthesis, structural and biological studies of pentapeptides containing two DeltaPhe residues (Z and E isomers) in position 2 and 4 in peptide chain were performed. All the investigated peptides adopted bent conformation and majority of them could exist as two different conformers in solution. Only pentapeptides, containing free N-termini appeared to act as weak inhibitors of cathepsin C with the slow-binding, competitive mechanism of inhibition, free acids being bound slightly better than their methyl esters. Results of molecular modeling suggested significant difference between peptides, depending of the type of amino acid residue in position 5 in peptide chain. Dehydropeptides containing Gly residue in this position may act as competitive slow-reacting substrates and therefore exhibit inhibitory-like properties.
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Affiliation(s)
- R Latajka
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
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21
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Żymańczyk-Duda E, Brzezińska-Rodak M, Klimek-Ochab M, Latajka R, Kafarski P, Lejczak B. Chiral O-phosphorylated derivative of 2-hydroxy-2-phenylethylphosphonate as a valuable product of microbial biotransformation of diethyl 2-oxo-2-phenylethylphosphonate. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.molcatb.2007.11.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Lisowski M, Latajka R, Picur B, Lis T, Bryndal I, Rospenk M, Makowski M, Kafarski P. Combined effect of the ΔPhe or ΔAla residue and thep-nitroanilide group on a didehydropeptides conformation. Biopolymers 2008; 89:220-34. [DOI: 10.1002/bip.20897] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Młynarz P, Jewginski M, Śliwińska S, Latajka R, Schroeder G, Kafarski P. “Twin” phosphorous atoms of tetraethyl 2-methyl-piperyd-1-ylmethylenebisphosphonates. Heteroatom Chem 2007. [DOI: 10.1002/hc.20349] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Latajka R, Makowski M, Jewgiński M, Pawełczak M, Koroniak H, Kafarski P. Peptide p-nitrophenylanilides containing (E)-dehydrophenylalanine—synthesis, structural studies and evaluation of their activity towards cathepsin C. NEW J CHEM 2006. [DOI: 10.1039/b601634k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Gumienna-Kontecka E, Gałęzowska J, Drąg M, Latajka R, Kafarski P, Kozłowski H. Coordination abilities of substituted β-aminophosphonates towards Cu2+ and Zn2+ ions. Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2003.11.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Krezel A, Latajka R, Bujacz GD, Bal W. Coordination properties of tris(2-carboxyethyl)phosphine, a newly introduced thiol reductant, and its oxide. Inorg Chem 2003; 42:1994-2003. [PMID: 12639134 DOI: 10.1021/ic025969y] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Acid-base properties and metal-binding abilities of tris(2-carboxyethyl)phosphine (TCEP), a newly introduced thiol group protectant, were studied in solution, using potentiometry, (1)H and (31)P NMR, and UV-vis spectroscopy, and also in the solid state by X-ray diffraction. Stability constants of complexes of the P-oxide of TCEP (TCEPO) were established by potentiometry. The list of metal ions studied included Ni(II), Cu(II), Zn(II), Cd(II), and Pb(II). Cu(II) catalyzed oxidation of TCEP to TCEPO. For all other systems ML complexes were found as major species at neutral pH with TCEP and TCEPO. Monoprotonated MHL species were also detected in weakly acidic conditions for all TCEP complexes and for the Pb(II) complex of TCEPO, while hydrolytic MH(-1)L complexes were found for TCEP at the weakly alkaline pH range. The NiL(4) complex was found to form at excess of TCEP. Overall, the complexes were found to be rather weak, with log beta(ML) values around 3-5 for TCEP and 1.5-2.5 for TCEPO. The phosphorus pK(a) value for TCEP, 7.68, suggests that it can be a good buffer for studies at physiological pH.
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Affiliation(s)
- Artur Krezel
- Faculty of Chemistry, University of Wrocław, Wrocław, Poland
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27
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Drag M, Latajka R, Gancarz R, Kafarski P, Pirat JL, Cristau HJ. Regio- and Stereoselective Synthesis, Solution Conformations of 2-Amino-1-hydroxy-2-arylethylphosphonic Esters and Acids. PHOSPHORUS SULFUR 2002. [DOI: 10.1080/10426500213360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Latajka R, Gancarz R, Kafarski P. Slow Inversion of Stereoisomers of 4-Amino-1-benzylpiperid-4-yl Phosphonic Acids and Their Esters. PHOSPHORUS SULFUR 2002. [DOI: 10.1080/10426500212212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Rafał Latajka
- a Institute of Organic Chemistry, Biochemistry, and Biotechnology , Wrocław University of Technology , Wrocław , Poland
| | - Roman Gancarz
- a Institute of Organic Chemistry, Biochemistry, and Biotechnology , Wrocław University of Technology , Wrocław , Poland
| | - Paweł Kafarski
- a Institute of Organic Chemistry, Biochemistry, and Biotechnology , Wrocław University of Technology , Wrocław , Poland
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29
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Kilyén M, Lakatos A, Latajka R, Labádi I, Salifoglou A, Raptopoulou CP, Kozlowski H, Kiss T. Al(iii)-binding properties of iminodiacetic acid, nitrilotriacetic acid and their mixed carboxylic–phosphonic derivatives. ACTA ACUST UNITED AC 2002. [DOI: 10.1039/b203198c] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Makowski M, Pawelczak M, Latajka R, Nowak K, Kafarski P. Synthesis of tetrapeptide p-nitrophenylanilides containing dehydroalanine and dehydrophenylalanine and their influence on cathepsin C activity. J Pept Sci 2001; 7:141-5. [PMID: 11297349 DOI: 10.1002/psc.307] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Three dehydrotetrapeptides of rationally varying structure were prepared and tested as affectors of cathepsin C. These compounds appeared to be substrates of the enzyme, being equipotent with their classical counterparts. Thus, replacement of amino acid in a short peptide by corresponding dehydroamino acid does not prevent cathepsin C in recognizing dehydropeptide as its substrate.
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Affiliation(s)
- M Makowski
- Institute of Chemistry, University of Opole, Oleska, Poland
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