EC Number   |
Substrates |
Organism |
Products |
Reversibility |
|---|
   1.8.7.2 | 2 reduced ferredoxin + thioredoxin disulfide |
- |
Gloeobacter violaceus |
2 oxidized ferredoxin + thioredoxin + 2 H+ |
- |
? |
| 1.8.7.2 | 2 reduced ferredoxin + thioredoxin disulfide |
- |
Arabidopsis thaliana |
2 oxidized ferredoxin + thioredoxin + 2 H+ |
- |
? |
| 1.8.7.2 | 2 reduced ferredoxin + thioredoxin disulfide |
- |
Gloeobacter violaceus ATCC 29082 |
2 oxidized ferredoxin + thioredoxin + 2 H+ |
- |
? |
| 1.8.7.2 | more |
FTR accepts reducing equivalents from photoreduced ferredoxin and transfers them stoichiometrically to the disulfide form of thioredoxin m. The reduced thioredoxin m, in turn, reduces NADP-malate dehydrogenase, thereby converting it from an inactive disulfide to an active thiol form |
Spinacia oleracea |
? |
- |
? |
| 1.8.7.2 | more |
midpoint potential of the active site disulfide/dithiol couple is -230 mV |
Spinacia oleracea |
? |
- |
? |
| 1.8.7.2 | more |
the catalytic mechanism involves S-based cluster chemistry to facilitate electron transfer to the active-site disulfide resulting in covalent attachment of the electron-transfer cysteine and generation of the free interchange cysteine that is required for the thiol-disulfide interchange reaction with thioredoxin |
Spinacia oleracea |
? |
- |
? |
| 1.8.7.2 | more |
when combined with spinach thylakoid membranes, the components of the ferredoxin-thioredoxin system function in the light activation of the standard target enzymes from chloroplasts, corn NADP-malate dehydrogenase, and spinach fructose 1,6-bisphosphatase, as well as the chloroplast-type fructose 1,6-bisphosphatase from Chlamydomonas. Activity is greatest if ferredoxin and other components of the ferredoxin-thioredoxin system are from Chlamydomonas |
Chlamydomonas reinhardtii |
? |
- |
? |
| 1.8.7.2 | more |
10 thioredoxin (Trx) isoforms in Arabidopsis thaliana can be clustered into three classes based on the kinetics of the ferredoxin-thioredoxin reductase (FTR)-dependent reduction (high-, middle-, and low-efficiency classes). Analysis of interaction between FTR and Trxs in the complex, structure analyses, detailed overview |
Arabidopsis thaliana |
? |
- |
- |
| 1.8.7.2 | more |
reduced ferredoxin (Fdx) is the electron donor for the DTR enzyme from cyanobacterium Gloeobacter violaceus (GvDTR) |
Gloeobacter violaceus |
? |
- |
- |
| 1.8.7.2 | more |
typical chloroplast thioredoxins (TRXs) include those of types m (four isoforms), f (two isoforms), y (two isoforms), x, and z. The redox regulation of enzymes of the Calvin-Benson cycle (CBC) and show the relevance of f-type TRXs in the light-dependent regulation of carbon fixation |
Arabidopsis thaliana |
? |
- |
- |
