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Iron . bleomycin . DNA system evidence of a long-lived bleomycin . iron . oxygen intermediate
Authors:J P Albertini  A Garnier-Suillerot  L Tosi
Affiliation:2. U.E.R. de Santé, Médecine et Biologie Humaine, Université Paris XIII, Bobigny, France.
Abstract:When Fe(II) is added to a bleomycin. DNA mixture in the presence of air a long-lived (t12 = 45 minutes) EPR silent species (I′) is formed; the circular dichroism and absorption spectra of which have been characterized. This complex slowly decays yielding a ferric complex (III′) analogous to the well known low spin Fe(III). BLM species.
Keywords:BLM  bleomycin  DNA  deoxyribonucleic acid  CD  circular dichroism  EPR  electron paramagnetic resonance
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