Abstract:
:Firefly luciferase is inactivated by singlet oxygen at near diffusion controlled rates, 1.9 X 10(9) M-1 s-1, based on direct comparison with the oxidation of L-histidine. The inactivation kinetics are multiphasic. Inactivation is inhibitable by NaN3. Surface-separated-sensitizer (SSS) system in which singlet oxygen is produced above an air gap separating the reaction solution from the Rose Bengal sensitizer, ensuring only Type II reactions, was compared with a Sensitox II system in which the polymer bound Rose Bengal is contained in the reaction solution and both Type I and Type II reactions can occur. A slight stabilization is afforded by MgSO4.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Thompson A,Nigro J,Seliger HHdoi
10.1016/0006-291x(86)90718-7subject
Has Abstractpub_date
1986-11-14 00:00:00pages
888-94issue
3eissn
0006-291Xissn
1090-2104pii
0006-291X(86)90718-7journal_volume
140pub_type
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journal_title:Biochemical and biophysical research communications
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