Title : Superoxide dismutases enhance H2O2-induced DNA damage and alter its site specificity.

Pub. Date : 2001 Apr 27

PMID : 11334889






3 Functional Relationships(s)
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1 The presence of CuZn-SOD, Mn-SOD or Mn(II) enhanced the frequency of DNA damage induced by hydrogen peroxide (H2O2) and Cu(II), and altered the site specificity of the latter: H2O2 induced Cu(II)-dependent DNA damage with high frequency at the 5"-guanine of poly G sequences; when SODs were added, the frequency of cleavages at thymine and cytosine residues increased. Hydrogen Peroxide superoxide dismutase 2 Homo sapiens
2 The presence of CuZn-SOD, Mn-SOD or Mn(II) enhanced the frequency of DNA damage induced by hydrogen peroxide (H2O2) and Cu(II), and altered the site specificity of the latter: H2O2 induced Cu(II)-dependent DNA damage with high frequency at the 5"-guanine of poly G sequences; when SODs were added, the frequency of cleavages at thymine and cytosine residues increased. Hydrogen Peroxide superoxide dismutase 2 Homo sapiens
3 The presence of CuZn-SOD, Mn-SOD or Mn(II) enhanced the frequency of DNA damage induced by hydrogen peroxide (H2O2) and Cu(II), and altered the site specificity of the latter: H2O2 induced Cu(II)-dependent DNA damage with high frequency at the 5"-guanine of poly G sequences; when SODs were added, the frequency of cleavages at thymine and cytosine residues increased. Hydrogen Peroxide superoxide dismutase 2 Homo sapiens