| Value |
2.662
sec^-1
|
| Organism |
Spinach Spinacia oleracea |
| Reference |
Takahashi M, Asada K. Superoxide production in aprotic interior of chloroplast thylakoids. Arch Biochem Biophys. 1988 Dec267(2):714-22.PubMed ID2850770
|
| Method |
Chloroplasts from spinach leaves that were homogenized in an isolation medium were precipitated precipitated by centrifugation and suspended in the medium. Measurement of Cytochrome c reduction induced by a single turnover flash. |
| Comments |
The following assumptions were made: (1) All O2- produced was trapped by Cyt c. (2) The reaction: [O2-(out)+oxidized Cyt c>>O2+reduced Cyt c] was a unidirectional flux because the O2- concentration was diluted by thousands of times in the bulk suspension medium. (3) The rate constant of above reaction was 5E5/(M *SEC) AT pH 7.5 |
| Entered by |
Uri M |
| ID |
103379 |