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Analysis of the DNA adducts of phenyl glycidyl ether in a calf thymus DNA hydrolysate by capillary zone electrophoresis-electrospray mass spectrometry: evidence for phosphate alkylation

(1998) CARCINOGENESIS. 19(6). p.1077-1086
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Abstract
Calf thymus DNA was reacted irt vitro with phenyl glycidyl ether (PGE) and was hydrolysed enzymatically, to the 5'-monophosphate nucleotides using deoxyribonuclease I (DNA-ase I) and nuclease P1, The adducts were concentrated using solid phase extraction (SPE), on a polystyrene divinylbenzene copolymer in order to remove the unmodified nucleotides. The adducts could be identified using capillary zone electrophoresis-electrospray tandem mass spectrometry (CZE ES-MS/MS), using sample stacking. In addition to the base alkylated 2'-deoxynucleotides present in the DNA-hydrolysate, also phosphate alkylated 2'-deoxynucleotide adducts were identified for TMP and dAMP, An additional adduct, dUMP alkylated on the uridine moiety was found originating from the hydrolytic deamination of dCMP alkylated on N-3 Of the cytosine moiety, Enzymatic hydrolysis using nuclease P1 was incomplete as shown by the presence of dinucleotides alkylated on the base moiety, They were successfully hydrolysed to the corresponding 2'-deoxynucleotides by snake venom phosphodiesterase (SVP), Data are shown indicating that alkylations on the pyrimidine bases were more resistant to enzymatic hydrolysis with nuclease P1 than the purine alkylated products.
Keywords
PHENYLGLYCIDYL ETHER, LIQUID-CHROMATOGRAPHY, 2'-DEOXYCYTIDINE, DAMAGE

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Chicago
Deforce, Dieter, Filip Lemière, Ilse Hoes, Rebecca E Millecamps, Eddy L Esmans, Andreas De Leenheer, and Elfrida Van Den Eeckhout. 1998. “Analysis of the DNA Adducts of Phenyl Glycidyl Ether in a Calf Thymus DNA Hydrolysate by Capillary Zone Electrophoresis-electrospray Mass Spectrometry: Evidence for Phosphate Alkylation.” Carcinogenesis 19 (6): 1077–1086.
APA
Deforce, D., Lemière, F., Hoes, I., Millecamps, R. E., Esmans, E. L., De Leenheer, A., & Van Den Eeckhout, E. (1998). Analysis of the DNA adducts of phenyl glycidyl ether in a calf thymus DNA hydrolysate by capillary zone electrophoresis-electrospray mass spectrometry: evidence for phosphate alkylation. CARCINOGENESIS, 19(6), 1077–1086.
Vancouver
1.
Deforce D, Lemière F, Hoes I, Millecamps RE, Esmans EL, De Leenheer A, et al. Analysis of the DNA adducts of phenyl glycidyl ether in a calf thymus DNA hydrolysate by capillary zone electrophoresis-electrospray mass spectrometry: evidence for phosphate alkylation. CARCINOGENESIS. 1998;19(6):1077–86.
MLA
Deforce, Dieter, Filip Lemière, Ilse Hoes, et al. “Analysis of the DNA Adducts of Phenyl Glycidyl Ether in a Calf Thymus DNA Hydrolysate by Capillary Zone Electrophoresis-electrospray Mass Spectrometry: Evidence for Phosphate Alkylation.” CARCINOGENESIS 19.6 (1998): 1077–1086. Print.
@article{178592,
  abstract     = {Calf thymus DNA was reacted irt vitro with phenyl glycidyl ether (PGE) and was hydrolysed enzymatically, to the 5'-monophosphate nucleotides using deoxyribonuclease I (DNA-ase I) and nuclease P1, The adducts were concentrated using solid phase extraction (SPE), on a polystyrene divinylbenzene copolymer in order to remove the unmodified nucleotides. The adducts could be identified using capillary zone electrophoresis-electrospray tandem mass spectrometry (CZE ES-MS/MS), using sample stacking. In addition to the base alkylated 2'-deoxynucleotides present in the DNA-hydrolysate, also phosphate alkylated 2'-deoxynucleotide adducts were identified for TMP and dAMP, An additional adduct, dUMP alkylated on the uridine moiety was found originating from the hydrolytic deamination of dCMP alkylated on N-3 Of the cytosine moiety, Enzymatic hydrolysis using nuclease P1 was incomplete as shown by the presence of dinucleotides alkylated on the base moiety, They were successfully hydrolysed to the corresponding 2'-deoxynucleotides by snake venom phosphodiesterase (SVP), Data are shown indicating that alkylations on the pyrimidine bases were more resistant to enzymatic hydrolysis with nuclease P1 than the purine alkylated products.},
  author       = {Deforce, Dieter and Lemi{\`e}re, Filip and Hoes, Ilse and Millecamps, Rebecca E and Esmans, Eddy L and De Leenheer, Andreas and Van Den Eeckhout, Elfrida},
  issn         = {0143-3334},
  journal      = {CARCINOGENESIS},
  keyword      = {PHENYLGLYCIDYL ETHER,LIQUID-CHROMATOGRAPHY,2'-DEOXYCYTIDINE,DAMAGE},
  language     = {eng},
  number       = {6},
  pages        = {1077--1086},
  title        = {Analysis of the DNA adducts of phenyl glycidyl ether in a calf thymus DNA hydrolysate by capillary zone electrophoresis-electrospray mass spectrometry: evidence for phosphate alkylation},
  url          = {http://dx.doi.org/10.1093/carcin/19.6.1077},
  volume       = {19},
  year         = {1998},
}

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