1
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Moon MH, Vock IW, Streit AD, Connor LJ, Senkina J, Ellman JA, Simon MD. Disulfide Tethering to Map Small Molecule Binding Sites Transcriptome-wide. ACS Chem Biol 2024; 19:2081-2086. [PMID: 39192734 DOI: 10.1021/acschembio.4c00538] [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: 08/29/2024]
Abstract
We report the development of Tether-seq, a transcriptome-wide screen to probe RNA-small molecule interactions using disulfide tethering. This technique uses s4U metabolic labeling to provide sites for reversible and covalent attachment of small molecule disulfides to the transcriptome. By screening under reducing conditions, we identify interactions that are stabilized by binding over those driven by the reactivity of the RNA sites. When applied to cellular RNA, Tether-seq with a disulfide analogue of risdiplam, an FDA-approved drug that targets RNA to treat spinal muscular atrophy (SMA), revealed a number of potential binding sites, most prominently at a site within the cytochrome C oxidase 1 (COX1) transcript. Structure probing by SHAPE-MaP revealed a structured motif and confirmed binding to the lead molecule. This work demonstrates that these screens have the power to identify binding sites throughout the transcriptome and provide invaluable insight into the thermodynamic properties that define small molecule binding.
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Affiliation(s)
- Michelle H Moon
- Department of Molecular Biophysics & Biochemistry, Yale University, New Haven, Connecticut 06511, United States
- Institute of Biomolecular Design & Discovery, Yale University, New Haven, Connecticut 06511, United States
- Department of Chemistry, Yale University, New Haven, Connecticut 06511, United States
| | - Isaac W Vock
- Department of Molecular Biophysics & Biochemistry, Yale University, New Haven, Connecticut 06511, United States
- Institute of Biomolecular Design & Discovery, Yale University, New Haven, Connecticut 06511, United States
| | - Andrew D Streit
- Department of Chemistry, Yale University, New Haven, Connecticut 06511, United States
| | - Leah J Connor
- Department of Molecular Biophysics & Biochemistry, Yale University, New Haven, Connecticut 06511, United States
- Institute of Biomolecular Design & Discovery, Yale University, New Haven, Connecticut 06511, United States
- Department of Chemistry, Yale University, New Haven, Connecticut 06511, United States
| | - Julia Senkina
- Department of Chemistry, Yale University, New Haven, Connecticut 06511, United States
| | - Jonathan A Ellman
- Department of Chemistry, Yale University, New Haven, Connecticut 06511, United States
| | - Matthew D Simon
- Department of Molecular Biophysics & Biochemistry, Yale University, New Haven, Connecticut 06511, United States
- Institute of Biomolecular Design & Discovery, Yale University, New Haven, Connecticut 06511, United States
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2
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Salihovic A, Ascham A, Taladriz-Sender A, Bryson S, Withers JM, McKean IJW, Hoskisson PA, Grogan G, Burley GA. Gram-scale enzymatic synthesis of 2'-deoxyribonucleoside analogues using nucleoside transglycosylase-2. Chem Sci 2024:d4sc04938a. [PMID: 39234214 PMCID: PMC11368039 DOI: 10.1039/d4sc04938a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Accepted: 08/26/2024] [Indexed: 09/06/2024] Open
Abstract
Nucleosides are pervasive building blocks that are found throughout nature and used extensively in medicinal chemistry and biotechnology. However, the preparation of base-modified analogues using conventional synthetic methodology poses challenges in scale-up and purification. In this work, an integrated approach involving structural analysis, screening and reaction optimization, is established to prepare 2'-deoxyribonucleoside analogues catalysed by the type II nucleoside 2'-deoxyribosyltransferase from Lactobacillus leichmannii (LlNDT-2). Structural analysis in combination with substrate profiling, identified the constraints on pyrimidine and purine acceptor bases by LlNDT2. A solvent screen identifies pure water as a suitable solvent for the preparation of high value purine and pyrimidine 2'-deoxyribonucleoside analogues on a gram scale under optimized reaction conditions. This approach provides the basis to establish a convergent, step-efficient chemoenzymatic platform for the preparation of high value 2'-deoxyribonucleosides.
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Affiliation(s)
- Admir Salihovic
- Department of Pure & Applied Chemistry, University of Strathclyde 295 Cathedral Street Glasgow UK G1 1XL
- Strathclyde Centre for Molecular Bioscience, University of Strathclyde UK
| | - Alex Ascham
- Department of Chemistry, University of York, Heslington York YO10 5DD UK
| | - Andrea Taladriz-Sender
- Department of Pure & Applied Chemistry, University of Strathclyde 295 Cathedral Street Glasgow UK G1 1XL
- Strathclyde Centre for Molecular Bioscience, University of Strathclyde UK
| | - Samantha Bryson
- Department of Pure & Applied Chemistry, University of Strathclyde 295 Cathedral Street Glasgow UK G1 1XL
- Strathclyde Centre for Molecular Bioscience, University of Strathclyde UK
| | - Jamie M Withers
- Department of Pure & Applied Chemistry, University of Strathclyde 295 Cathedral Street Glasgow UK G1 1XL
- Strathclyde Centre for Molecular Bioscience, University of Strathclyde UK
| | - Iain J W McKean
- Department of Pure & Applied Chemistry, University of Strathclyde 295 Cathedral Street Glasgow UK G1 1XL
- Strathclyde Centre for Molecular Bioscience, University of Strathclyde UK
| | - Paul A Hoskisson
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde 161 Cathedral Street Glasgow G4 0RE UK
| | - Gideon Grogan
- Department of Chemistry, University of York, Heslington York YO10 5DD UK
| | - Glenn A Burley
- Department of Pure & Applied Chemistry, University of Strathclyde 295 Cathedral Street Glasgow UK G1 1XL
- Strathclyde Centre for Molecular Bioscience, University of Strathclyde UK
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3
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Kulik K, Sadowska K, Wielgus E, Pacholczyk-Sienicka B, Sochacka E, Nawrot B. 2-Selenouridine, a Modified Nucleoside of Bacterial tRNAs, Its Reactivity in the Presence of Oxidizing and Reducing Reagents. Int J Mol Sci 2022; 23:ijms23147973. [PMID: 35887319 PMCID: PMC9325004 DOI: 10.3390/ijms23147973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/16/2022] [Accepted: 07/16/2022] [Indexed: 02/04/2023] Open
Abstract
The 5-substituted 2-selenouridines are natural components of the bacterial tRNA epitranscriptome. Because selenium-containing biomolecules are redox-active entities, the oxidation susceptibility of 2-selenouridine (Se2U) was studied in the presence of hydrogen peroxide under various conditions and compared with previously reported data for 2-thiouridine (S2U). It was found that Se2U is more susceptible to oxidation and converted in the first step to the corresponding diselenide (Se2U)2, an unstable intermediate that decomposes to uridine and selenium. The reversibility of the oxidized state of Se2U was demonstrated by the efficient reduction of (Se2U)2 to Se2U in the presence of common reducing agents. Thus, the 2-selenouridine component of tRNA may have antioxidant potential in cells because of its ability to react with both cellular ROS components and reducing agents. Interestingly, in the course of the reactions studied, we found that (Se2U)2 reacts with Se2U to form new ‘oligomeric nucleosides′ as linear and cyclic byproducts.
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Affiliation(s)
- Katarzyna Kulik
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (E.W.); (B.N.)
- Correspondence: ; Tel.: +48-(42)-68-03-215
| | - Klaudia Sadowska
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (K.S.); (B.P.-S.); (E.S.)
| | - Ewelina Wielgus
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (E.W.); (B.N.)
| | - Barbara Pacholczyk-Sienicka
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (K.S.); (B.P.-S.); (E.S.)
| | - Elzbieta Sochacka
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (K.S.); (B.P.-S.); (E.S.)
| | - Barbara Nawrot
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (E.W.); (B.N.)
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4
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Payne NC, Geissler A, Button A, Sasuclark AR, Schroll AL, Ruggles EL, Gladyshev VN, Hondal RJ. Comparison of the redox chemistry of sulfur- and selenium-containing analogs of uracil. Free Radic Biol Med 2017; 104:249-261. [PMID: 28108278 PMCID: PMC5328918 DOI: 10.1016/j.freeradbiomed.2017.01.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 01/13/2017] [Accepted: 01/16/2017] [Indexed: 11/16/2022]
Abstract
Selenium is present in proteins in the form of selenocysteine, where this amino acid serves catalytic oxidoreductase functions. The use of selenocysteine in nature is strongly associated with redox catalysis. However, selenium is also found in a 2-selenouridine moiety at the wobble position of tRNAGlu, tRNAGln and tRNALys. It is thought that the modifications of the wobble position of the tRNA improves the selectivity of the codon-anticodon pair as a result of the physico-chemical changes that result from substitution of sulfur and selenium for oxygen. Both selenocysteine and 2-selenouridine have widespread analogs, cysteine and thiouridine, where sulfur is used instead. To examine the role of selenium in 2-selenouridine, we comparatively analyzed the oxidation reactions of sulfur-containing 2-thiouracil-5-carboxylic acid (s2c5Ura) and its selenium analog 2-selenouracil-5-carboxylic acid (se2c5Ura) using 1H-NMR spectroscopy, 77Se-NMR spectroscopy, and liquid chromatography-mass spectrometry. Treatment of s2c5Ura with hydrogen peroxide led to oxidized intermediates, followed by irreversible desulfurization to form uracil-5-carboxylic acid (c5Ura). In contrast, se2c5Ura oxidation resulted in a diselenide intermediate, followed by conversion to the seleninic acid, both of which could be readily reduced by ascorbate and glutathione. Glutathione and ascorbate only minimally prevented desulfurization of s2c5Ura, whereas very little deselenization of se2c5Ura occurred in the presence of the same antioxidants. In addition, se2c5Ura but not s2c5Ura showed glutathione peroxidase activity, further suggesting that oxidation of se2c5Ura is readily reversible, while oxidation of s2c5Ura is not. The results of the study of these model nucleobases suggest that the use of 2-selenouridine is related to resistance to oxidative inactivation that otherwise characterizes 2-thiouridine. As the use of selenocysteine in proteins also confers resistance to oxidation, our findings suggest a common mechanism for the use of selenium in biology.
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Affiliation(s)
- N Connor Payne
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room B413, Burlington, VT 05405, United States
| | - Andrew Geissler
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room B413, Burlington, VT 05405, United States
| | - Aileen Button
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room B413, Burlington, VT 05405, United States
| | - Alexandru R Sasuclark
- Department of Chemistry, St. Michael's College, 1 Winooski Park, Colchester, VT 05439, United States
| | - Alayne L Schroll
- Department of Chemistry, St. Michael's College, 1 Winooski Park, Colchester, VT 05439, United States
| | - Erik L Ruggles
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room B413, Burlington, VT 05405, United States
| | - Vadim N Gladyshev
- Division of Genetics, Department of Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, MA 02115, United States
| | - Robert J Hondal
- Department of Biochemistry, 89 Beaumont Ave, Given Building Room B413, Burlington, VT 05405, United States.
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5
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Sigel A, Operschall BP, Matera-Witkiewicz A, Świątek-Kozłowska J, Sigel H. Acid–base and metal ion-binding properties of thiopyrimidine derivatives. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Bartos P, Ebenryter-Olbinska K, Sochacka E, Nawrot B. The influence of the C5 substituent on the 2-thiouridine desulfuration pathway and the conformational analysis of the resulting 4-pyrimidinone products. Bioorg Med Chem 2015; 23:5587-94. [DOI: 10.1016/j.bmc.2015.07.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 07/14/2015] [Accepted: 07/15/2015] [Indexed: 11/29/2022]
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7
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Chwialkowska A, Wielgus E, Leszczynska G, Sobczak M, Mikolajczyk B, Sochacka E, Nawrot B. An efficient approach for conversion of 5-substituted 2-thiouridines built in RNA oligomers into corresponding desulfured 4-pyrimidinone products. Bioorg Med Chem Lett 2015; 25:3100-4. [PMID: 26112441 DOI: 10.1016/j.bmcl.2015.06.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 06/03/2015] [Accepted: 06/05/2015] [Indexed: 01/09/2023]
Abstract
An efficient approach for the desulfuration of C5-substituted 2-thiouridines (R5S2U) bound in the RNA chain exclusively to 4-pyrimidinone nucleoside (R5H2U)-containing RNA products is proposed. This post-synthetic transformation avoids the preparation of a suitably protected H2U phosphoramidite, which otherwise would be necessary for solid-phase synthesis of the modified RNA. Optimization of the desulfuration, which included reaction stoichiometry, time and temperature, allowed to transform a set of ten R5S2U-RNAs into their R5H2U-RNA congeners in ca. 90% yield.
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Affiliation(s)
- Anna Chwialkowska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Ewelina Wielgus
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Grazyna Leszczynska
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Milena Sobczak
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Barbara Mikolajczyk
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Elzbieta Sochacka
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Barbara Nawrot
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
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8
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Sochacka E, Szczepanowski RH, Cypryk M, Sobczak M, Janicka M, Kraszewska K, Bartos P, Chwialkowska A, Nawrot B. 2-Thiouracil deprived of thiocarbonyl function preferentially base pairs with guanine rather than adenine in RNA and DNA duplexes. Nucleic Acids Res 2015; 43:2499-512. [PMID: 25690900 PMCID: PMC4357714 DOI: 10.1093/nar/gkv109] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 01/30/2015] [Accepted: 02/02/2015] [Indexed: 12/12/2022] Open
Abstract
2-Thiouracil-containing nucleosides are essential modified units of natural and synthetic nucleic acids. In particular, the 5-substituted-2-thiouridines (S2Us) present in tRNA play an important role in tuning the translation process through codon-anticodon interactions. The enhanced thermodynamic stability of S2U-containing RNA duplexes and the preferred S2U-A versus S2U-G base pairing are appreciated characteristics of S2U-modified molecular probes. Recently, we have demonstrated that 2-thiouridine (alone or within an RNA chain) is predominantly transformed under oxidative stress conditions to 4-pyrimidinone riboside (H2U) and not to uridine. Due to the important biological functions and various biotechnological applications for sulfur-containing nucleic acids, we compared the thermodynamic stabilities of duplexes containing desulfured products with those of 2-thiouracil-modified RNA and DNA duplexes. Differential scanning calorimetry experiments and theoretical calculations demonstrate that upon 2-thiouracil desulfuration to 4-pyrimidinone, the preferred base pairing of S2U with adenosine is lost, with preferred base pairing with guanosine observed instead. Therefore, biological processes and in vitro assays in which oxidative desulfuration of 2-thiouracil-containing components occurs may be altered. Moreover, we propose that the H2U-G base pair is a suitable model for investigation of the preferred recognition of 3'-G-ending versus A-ending codons by tRNA wobble nucleosides, which may adopt a 4-pyrimidinone-type structural motif.
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Affiliation(s)
- Elzbieta Sochacka
- Institute of Organic Chemistry, Technical University of Lodz, Zeromskiego 116, 90-924 Lodz, Poland
| | - Roman H Szczepanowski
- International Institute of Molecular and Cell Biology, Ks. J. Trojdena 4, 02-109 Warsaw, Poland
| | - Marek Cypryk
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Milena Sobczak
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Magdalena Janicka
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Karina Kraszewska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Paulina Bartos
- Institute of Organic Chemistry, Technical University of Lodz, Zeromskiego 116, 90-924 Lodz, Poland
| | - Anna Chwialkowska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Barbara Nawrot
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
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9
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Ebenryter-Olbinska K, Karolak-Wojciechowska J, Sochacka E. Efficient synthesis of 2'-deoxyzebularine and its α-anomer by the silyl method of N-glycosylation. Crystal structures and conformational study in solution. Carbohydr Res 2014; 392:7-15. [PMID: 24814656 DOI: 10.1016/j.carres.2014.03.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 03/17/2014] [Accepted: 03/18/2014] [Indexed: 10/25/2022]
Abstract
2'-Deoxyzebularine and its α-anomer have been efficiently synthesized with relatively high stereoselectivity by a modified procedure of the silyl method of the N-glycosidic bond formation. An SnCl4-catalyzed condensation of silylated pyrimidin-2-one with 1-α-chloro-3,5-di-O-p-toluoyl-2-deoxy-d-ribofuranose under kinetic control condition (-33°C, 1,2-dichloroethane) led to the mixture of β- and α-anomeric nucleosides in 3:1 ratio. Analogous condensation at +35°C (thermodynamic control conditions) provided mainly p-toluoyl protected α-2'-deoxyzebularine (α:β=4:1), easily separated by crystallization from the anomeric mixture. The structures of both 2'-deoxyzebularine anomers were confirmed by X-ray analysis of the crystals and conformational studies in solution performed using an NMR method.
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Affiliation(s)
| | - Janina Karolak-Wojciechowska
- Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Elzbieta Sochacka
- Institute of Organic Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
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10
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Sochacka E, Bartos P, Kraszewska K, Nawrot B. Desulfuration of 2-thiouridine with hydrogen peroxide in the physiological pH range 6.6–7.6 is pH-dependent and results in two distinct products. Bioorg Med Chem Lett 2013; 23:5803-5. [DOI: 10.1016/j.bmcl.2013.08.114] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 08/29/2013] [Accepted: 08/30/2013] [Indexed: 10/26/2022]
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11
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Geiermann AS, Micura R. Selective desulfurization significantly expands sequence variety of 3'-peptidyl-tRNA mimics obtained by native chemical ligation. Chembiochem 2012; 13:1742-5. [PMID: 22786696 PMCID: PMC3430856 DOI: 10.1002/cbic.201200368] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Indexed: 12/30/2022]
Affiliation(s)
- Anna-Skrollan Geiermann
- Institute of Organic Chemistry, CCB: Center for Chemistry and Biomedicine, University of Innsbruck6020 Innsbruck (Austria) E-mail:
| | - Ronald Micura
- Institute of Organic Chemistry, CCB: Center for Chemistry and Biomedicine, University of Innsbruck6020 Innsbruck (Austria) E-mail:
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12
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Nawrot B, Sochacka E, Düchler M. tRNA structural and functional changes induced by oxidative stress. Cell Mol Life Sci 2011; 68:4023-32. [PMID: 21833586 PMCID: PMC3221842 DOI: 10.1007/s00018-011-0773-8] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 07/04/2011] [Accepted: 07/07/2011] [Indexed: 11/29/2022]
Abstract
Oxidatively damaged biomolecules impair cellular functions and contribute to the pathology of a variety of diseases. RNA is also attacked by reactive oxygen species, and oxidized RNA is increasingly recognized as an important contributor to neurodegenerative complications in humans. Recently, evidence has accumulated supporting the notion that tRNA is involved in cellular responses to various stress conditions. This review focuses on the intriguing consequences of oxidative modification of tRNA at the structural and functional level.
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Affiliation(s)
- Barbara Nawrot
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 112, Sienkiewicza Street, 90-363 Lodz, Poland
| | - Elzbieta Sochacka
- Institute of Organic Chemistry, Technical University of Lodz, Zeromskiego 116, 90-924 Lodz, Poland
| | - Markus Düchler
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 112, Sienkiewicza Street, 90-363 Lodz, Poland
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13
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Sochacka E, Kraszewska K, Sochacki M, Sobczak M, Janicka M, Nawrot B. The 2-thiouridine unit in the RNA strand is desulfured predominantly to 4-pyrimidinone nucleoside under in vitro oxidative stress conditions. Chem Commun (Camb) 2011; 47:4914-6. [DOI: 10.1039/c1cc10973a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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