Reactions of radiolytically-generated superoxide anion with higher oxidation states of lactoperoxidase.
The time-courses of absorption changes after pulse radiolysis of oxygen-saturated solution of lactoperoxidase have been studied. Radiation-generated superoxide reduces compounds I to II. The results suggest that superoxide anion reacts also with compound II of lactoperoxidase; however, the reduction of the heme iron has not been observed. A possible reaction pathway of compound II in the presence of superoxide anion is discussed.
Gebicka
L
L
Institute of Applied Radiation Chemistry, Technical University of Lódź, Wróblewskiego, Poland.
Gebicki
J L
JL
D000818:Animals; D000838:Anions; D002417:Cattle; D066298:In Vitro Techniques; D007784:Lactoperoxidase; D010100:Oxygen; D011675:Pulse Radiolysis; D012996:Solutions; D013481:Superoxides; D013997:Time Factors
D000838:Anions; D012996:Solutions; D013481:Superoxides; D007784:Lactoperoxidase; D010100:Oxygen