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Bocková J, Rebelo A, Ryszka M, Pandey R, Mészáros D, Limão-Vieira P, Papp P, Mason NJ, Townsend D, Nixon KL, Vizcaino V, Poully JC, Eden S. Thermal desorption effects on fragment ion production from multi-photon ionized uridine and selected analogues. RSC Adv 2021; 11:20612-20621. [PMID: 35479354 PMCID: PMC9033967 DOI: 10.1039/d1ra01873f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/09/2021] [Indexed: 12/22/2022] Open
Abstract
Experiments on neutral gas-phase nucleosides are often complicated by thermal lability. Previous mass spectrometry studies of nucleosides have identified enhanced relative production of nucleobase ions (e.g. uracil+ from uridine) as a function of desorption temperature to be the critical indicator of thermal decomposition. On this basis, the present multi-photon ionization (MPI) experiments demonstrate that laser-based thermal desorption is effective for producing uridine, 5-methyluridine, and 2′-deoxyuridine targets without thermal decomposition. Our experiments also revealed one notable thermal dependence: the relative production of the sugar ion C5H9O4+ from intact uridine increased substantially with the desorption laser power and this only occurred at MPI wavelengths below 250 nm (full range studied 222–265 nm). We argue that this effect can only be rationalized plausibly in terms of changing populations of different isomers, tautomers, or conformers in the target as a function of the thermal desorption conditions. Furthermore, the wavelength threshold behavior of this thermally-sensitive MPI channel indicates a critical dependence on neutral excited state dynamics between the absorption of the first and second photons. The experimental results are complemented by density functional theory (DFT) optimizations of the lowest-energy structure of uridine and two further conformers distinguished by different orientations of the hydroxymethyl group on the sugar part of the molecule. The energies of the transitions states between these three conformers are low compared with the energy required for decomposition. This work reveals the first experimental evidence supporting isomer-dependence in the radiation response of a nucleoside.![]()
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Affiliation(s)
- J Bocková
- School of Physical Sciences, The Open University Walton Hall Milton Keynes MK7 6AA UK
| | - A Rebelo
- School of Physical Sciences, The Open University Walton Hall Milton Keynes MK7 6AA UK .,Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, FCT - Universidade NOVA de Lisboa P-2829-516 Caparica Portugal
| | - M Ryszka
- School of Physical Sciences, The Open University Walton Hall Milton Keynes MK7 6AA UK
| | - R Pandey
- School of Physical Sciences, The Open University Walton Hall Milton Keynes MK7 6AA UK
| | - D Mészáros
- Department of Experimental Physics, Comenius University in Bratislava Mlynská dolina F2 84248 Bratislava Slovakia
| | - P Limão-Vieira
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, FCT - Universidade NOVA de Lisboa P-2829-516 Caparica Portugal
| | - P Papp
- Department of Experimental Physics, Comenius University in Bratislava Mlynská dolina F2 84248 Bratislava Slovakia
| | - N J Mason
- School of Physical Sciences, The Open University Walton Hall Milton Keynes MK7 6AA UK .,School of Physical Sciences, Ingram Building, University of Kent Canterbury CT2 7NH UK
| | - D Townsend
- Institute of Photonics and Quantum Sciences, Heriot-Watt University Edinburgh EH14 4AS UK.,Institute of Chemical Sciences, Heriot-Watt University Edinburgh EH14 4AS UK
| | - K L Nixon
- School of Life, Health, and Chemical Sciences, The Open University Walton Hall Milton Keynes MK7 6AA UK.,School of Sciences, University of Wolverhampton Wulfruna Street Wolverhampton WV1 1LY UK
| | - V Vizcaino
- CIMAP UMR 6252, CEA/CNRS/ENSICAEN/Université de Caen Normandie, GANIL Bd Becquerel BP 5133 14070 Caen France
| | - J-C Poully
- CIMAP UMR 6252, CEA/CNRS/ENSICAEN/Université de Caen Normandie, GANIL Bd Becquerel BP 5133 14070 Caen France
| | - S Eden
- School of Physical Sciences, The Open University Walton Hall Milton Keynes MK7 6AA UK
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Slowikowski DL, Schram KH. Fast ATOM Bombardment Mass Spectra of Nucleosides. Comparison with Electron Impact and Chemical Ionization Mass Spectra. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/07328318508056167] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Bond A, Dudley E, Lemière F, Tuytten R, El-Sharkawi S, Brenton AG, Esmans EL, Newton RP. Analysis of urinary nucleosides. V. Identification of urinary pyrimidine nucleosides by liquid chromatography/electrospray mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2006; 20:137-50. [PMID: 16331740 DOI: 10.1002/rcm.2266] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Modified urinary nucleosides are potentially invaluable in cancer diagnosis, as they reflect altered RNA turnovers. High-performance liquid chromatography (HPLC) was combined with full-scan mass spectrometry, tandem mass spectrometry, MS(n) analysis and accurate mass measurements in order to identify pyrimidine nucleosides purified from urine. Potential nucleosides were assessed by their evident UV absorbance in the HPLC chromatogram and then further examined by the various mass spectrometric techniques. In this manner numerous pyrimidine nucleosides were identified in the urine samples from cancer patients including pseudouridine, cytidine, two methylcytidines and an acetylcytidine. Furthermore, a number of novel modified pyrimidine nucleosides were tentatively identified via critical interpretation of the combined mass spectrometric data.
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Affiliation(s)
- Alison Bond
- Biomolecular Analysis Mass Spectrometry (BAMS) Facility, Grove Building, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, UK
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Weber JV, Sampino K, Dunphy R, Burinsky DJ, Williams T, Motto MG. Characterization of cladribine and its related compounds by high-performance liquid chromatography/mass spectrometry. J Pharm Sci 1994; 83:525-31. [PMID: 7913965 DOI: 10.1002/jps.2600830416] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
High-performance liquid chromatography/mass spectrometer (HPLC/MS) was used to identify and structurally characterize the modified nucleoside cladribine (2-chloro-2'-deoxy-beta-adenosine) and 13 synthesis-related byproducts in bulk drug. Confirmation of compound identity was accomplished by spectral analysis (1H and 13C NMR spectroscopy, mass spectrometry, and UV absorption spectroscopy) of the related compounds as isolated from crude mixtures of the drug substance and by spiking experiments with authentic standards. The use of on-line mass spectrometric analysis (i.e., LC/MS) to augment UV absorption spectra permitted rapid identification of many of the compounds of interest.
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Affiliation(s)
- J V Weber
- R.W. Johnson Pharmaceutical Research Institute, Raritan, NJ 08869-0602
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Resonance enhanced multiphoton ionization of nucleosides by using pulsed-laser desorption in supersonic beam mass spectrometry. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/0168-1176(89)85016-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Michie PD, Johnson BM. Competitive electron impact induced methylene imine elimination from methyl- and dimethylaminoN-heterocycles. 1—substituted melamines. ACTA ACUST UNITED AC 1983. [DOI: 10.1002/oms.1210180505] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Swaminathan S, Bock RM. Isolation and identification of cytokinins from Euglena gracilis transfer ribonucleic acid. Biochemistry 1977; 16:1355-60. [PMID: 402938 DOI: 10.1021/bi00626a018] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Three ribonucleosides responsible for cytokinin activity in Euglena gracilis var Bacillaris tRNA have been isolated and identified as 6-(3-methyl-2-butenylamino)-9-beta-D-ribofuranosylpurine, 6-(4-hydroxy-3-methyl-cis-2-butenylamino)-9-beta-D-ribofuranosylpurine, and 6-(4-hydroxy-3-methyl-2-butenylamino)-2-methylthio-9-beta-D-ribofuranosylpurine. The structures of these compounds were assigned on the basis of their chromatographic properties and ultraviolet and mass spectra which were identical with those of the corresponding synthetic compounds. The elution profiles of cytokinin bioassay activity and of 35S radioactivity suggest the presence of a trace amount of 6-(3-methyl-2-butenylamino)-2-methylthio-9-beta-D-ribofuranosylpurine.
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White BN, Dunn R, Gillam I, Tener GM, Armstrong DJ, Skoog F, Frihart CR, Leonard NJ. An analysis of five serine transfer ribonucleic acids from Drosophila. J Biol Chem 1975. [DOI: 10.1016/s0021-9258(19)41926-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Liehr JG, von Minden DL, Hattox SE, McCloskey JA. Characterization of cytosine nucleosides by mass spectrometry. BIOMEDICAL MASS SPECTROMETRY 1974; 1:281-5. [PMID: 4441623 DOI: 10.1002/bms.1200010413] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Quilliam MA, Ogilvie KK, Westmore JB. Separation and characterization of isomeric substituted nucleosides by gas chromatography and mass spectrometry. BIOMEDICAL MASS SPECTROMETRY 1974; 1:78-9. [PMID: 4547982 DOI: 10.1002/bms.1200010116] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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12
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Westmore JB, Lin DCK, Ogilvie KK, Wayborn H, Berestiansky J. The study and characterization of nucleosides by mass spectrometry—I: The mass spectra of pyrimidine 2,2′-anhydronucleosides and their derivatives. ACTA ACUST UNITED AC 1972. [DOI: 10.1002/oms.1210061110] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Hipkiss AR, Arnstein HR, Edmunds ME. Thionucleotide formation in Escherichia coli transfer ribonucleic acid in the presence of 5-fluorouracil. FEBS Lett 1971; 16:109-113. [PMID: 11945915 DOI: 10.1016/0014-5793(71)80345-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- A R. Hipkiss
- Department of Biochemistry, University of London King's College, Strand, WC2R 2LS, London, England
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