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The interaction of biliverdin and its dimethyl ester with superoxide ion |
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| Authors: | Guido Galliani Diego Monti Giovanna Speranza Paolo Manitto |
| Affiliation: | a Istituto di Chimica Organica dell'Università and Centro di Studio sulle Sostanze Organiche Naturali del CNR, Via Venezian 21, 20133- Milano, Italy. b Centro Studi Maria Branca, Via E. Porro 1, 20158- Milano Italy. |
| Abstract: | Bilin-1,19(21H,24H)-diones interact with O2·- in DMSO giving rise to adducts showing charge-transfer character. This reaction can be reversed by addition of O2·- consuming compounds. The O2·-biliverdin dimethyl ester adduct collapses partially to 10-oxobilirubin dimethyl ester when treated with thiourea and 2-mercaptoethanol. |
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