Application of DNA adductomics to soil bacterium Sphingobium sp. strain KK22

Robert A. Kanaly, Ruggero Micheletto, Tomonari Matsuda, Youko Utsuno, Yasuhiro Ozeki, Natsuko Hamamura

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)

抄録

Toward the development of ecotoxicology methods to investigate microbial markers of impacts of hydrocarbon processing activities, DNA adductomic analyses were conducted on a sphingomonad soil bacterium. From growing cells that were exposed or unexposed to acrolein, a commonly used biocide in hydraulic fracturing processes, DNA was extracted, digested to 2′-deoxynucleosides and analyzed by liquid chromatography-positive ionization electrospray-tandem mass spectrometry in selected reaction monitoring mode transmitting the [M + H]+ > [M + H - 116]+ transition over 100 transitions. Overall data shown as DNA adductome maps revealed numerous putative DNA adducts under both conditions with some occurring specifically for each condition. Adductomic analyses of triplicate samples indicated that elevated levels of some targeted putative adducts occurred in exposed cells. Two exposure-specific adducts were identified in exposed cells as 3-(2′-deoxyribosyl)-5,6,7,8-tetrahydro-6-hydroxy-(and 8-hydroxy-)pyrimido[1,2-a]- purine-(3H)-one (6- and 8-hydroxy-PdG) following synthesis of authentic standards of these compounds and subsequent analyses. A time course experiment showed that 6- and 8-hydroxy-PdG were detected in bacterial DNA within 30 min of acrolein exposure but were not detected in unexposed cells. This work demonstrated the first application of DNA adductomics to examine DNA damage in a bacterium and sets a foundation for future work.

元の言語英語
ページ(範囲)841-856
ページ数16
ジャーナルMicrobiologyOpen
4
発行部数5
DOI
出版物ステータス出版済み - 10 1 2015

Fingerprint

Soil
Acrolein
Bacteria
DNA
Ecotoxicology
Bacterial DNA
DNA Adducts
Disinfectants
Hydrocarbons
Tandem Mass Spectrometry
Liquid Chromatography
DNA Damage

All Science Journal Classification (ASJC) codes

  • Microbiology

これを引用

Application of DNA adductomics to soil bacterium Sphingobium sp. strain KK22. / Kanaly, Robert A.; Micheletto, Ruggero; Matsuda, Tomonari; Utsuno, Youko; Ozeki, Yasuhiro; Hamamura, Natsuko.

:: MicrobiologyOpen, 巻 4, 番号 5, 01.10.2015, p. 841-856.

研究成果: ジャーナルへの寄稿記事

Kanaly, RA, Micheletto, R, Matsuda, T, Utsuno, Y, Ozeki, Y & Hamamura, N 2015, 'Application of DNA adductomics to soil bacterium Sphingobium sp. strain KK22', MicrobiologyOpen, 巻. 4, 番号 5, pp. 841-856. https://doi.org/10.1002/mbo3.283
Kanaly, Robert A. ; Micheletto, Ruggero ; Matsuda, Tomonari ; Utsuno, Youko ; Ozeki, Yasuhiro ; Hamamura, Natsuko. / Application of DNA adductomics to soil bacterium Sphingobium sp. strain KK22. :: MicrobiologyOpen. 2015 ; 巻 4, 番号 5. pp. 841-856.
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