Abstract
Hydrophobic interaction chromatography of coenzyme F420-reducing hydrogenase purified from Methanobacterium formicicum depleted protein-bound FAD and eliminated the ability to reduce coenzyme F420. Preincubation of the FAD-depleted hydrogenase with FAD restored 85% of the coenzyme F420-reducing activity. FMN did not replace FAD. A Kd of 12 μM was estimated for FAD. Analysis of the reactivated hydrogenase following molecular sieve column chromatography showed that FAD was bound to protein. The results indicate that protein-bound FAD is reversibly removed from the coenzyme F420-reducing hydrogenase and that this flavin is required for the reduction of coenzyme F420.
Original language | English (US) |
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Pages (from-to) | 775-781 |
Number of pages | 7 |
Journal | Biochemical and Biophysical Research Communications |
Volume | 120 |
Issue number | 3 |
DOIs | |
State | Published - May 16 1984 |
All Science Journal Classification (ASJC) codes
- Biophysics
- Biochemistry
- Molecular Biology
- Cell Biology