1.8.7.2: ferredoxin:thioredoxin reductase
This is an abbreviated version!
For detailed information about ferredoxin:thioredoxin reductase, go to the full flat file.
Word Map on EC 1.8.7.2
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1.8.7.2
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thioredoxins
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chloroplast
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spinach
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redox-active
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reductases
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epr
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fe-s
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light-dependent
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one-electron-reduced
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two-electron
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iron-sulfur
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raman
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one-electron
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variable-temperature
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heterodisulfide
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dithiol
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methanosarcina
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synthesis
- 1.8.7.2
- thioredoxins
- chloroplast
- spinach
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redox-active
- reductases
- epr
- fe-s
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light-dependent
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one-electron-reduced
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two-electron
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iron-sulfur
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raman
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one-electron
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variable-temperature
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heterodisulfide
- dithiol
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methanosarcina
- synthesis
Reaction
2 reduced ferredoxin + = 2 oxidized ferredoxin + + 2 H+
Synonyms
Fd-thioredoxin reductase, Fd:TRX reductase, FdR, Fdx flavin-thioredoxin reductase, Fdx-dependent thioredoxin reductase, FDX-dependent TRX reductase, ferredoxin disulfide reductase, ferredoxin-dependent thioredoxin reductase, ferredoxin-thioredoxin reductase, FFTR, FTR, FTRc, glr0719, GvDTR, iron-sulfur ferredoxin-dependent thioredoxin reductase, Ma_1659, protein modulase
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Substrates Products
Substrates Products on EC 1.8.7.2 - ferredoxin:thioredoxin reductase
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REACTION DIAGRAM
oxidized ferredoxin + thioredoxin f + H+
reduced ferredoxin + thioredoxin f disulfide
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oxidized ferredoxin + thioredoxin m + H+
reduced ferredoxin + thioredoxin m disulfide
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oxidized ferredoxin + thioredoxin z + H+
reduced ferredoxin + thioredoxin z disulfide
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oxidized ferredoxin + thioredoxin-f1 + H+
reduced ferredoxin + thioredoxin-f1 disulfide
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oxidized ferredoxin + thioredoxin-f2 + H+
reduced ferredoxin + thioredoxin-f2 disulfide
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oxidized ferredoxin + thioredoxin-m1 + H+
reduced ferredoxin + thioredoxin-m1 disulfide
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oxidized ferredoxin + thioredoxin-m2 + H+
reduced ferredoxin + thioredoxin-m2 disulfide
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oxidized ferredoxin + thioredoxin-m3 + H+
reduced ferredoxin + thioredoxin-m3 disulfide
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oxidized ferredoxin + thioredoxin-m4 + H+
reduced ferredoxin + thioredoxin-m4 disulfide
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oxidized ferredoxin + thioredoxin-x + H+
reduced ferredoxin + thioredoxin-x disulfide
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oxidized ferredoxin + thioredoxin-y1 + H+
reduced ferredoxin + thioredoxin-y1 disulfide
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oxidized ferredoxin + thioredoxin-y2 + H+
reduced ferredoxin + thioredoxin-y2 disulfide
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oxidized ferredoxin + thioredoxin-z + H+
reduced ferredoxin + thioredoxin-z disulfide
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reduced ferredoxin + thioredoxin disulfide
2 oxidized ferredoxin + thioredoxin + 2 H+
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2 oxidized ferredoxin + thioredoxin + 2 H+
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2 reduced ferredoxin + thioredoxin disulfide
2 oxidized ferredoxin + thioredoxin + 2 H+
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2 reduced ferredoxin + thioredoxin disulfide
2 oxidized ferredoxin + thioredoxin + 2 H+
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2 reduced ferredoxin + thioredoxin disulfide
2 oxidized ferredoxin + thioredoxin + 2 H+
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reduced ferredoxin + thioredoxin disulfide
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oxidized ferredoxin + thioredoxin + H+
reduced ferredoxin + thioredoxin disulfide
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oxidized ferredoxin + thioredoxin + H+
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reduced ferredoxin + thioredoxin disulfide
oxidized ferredoxin + thioredoxin + H+
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reduced ferredoxin + thioredoxin disulfide
oxidized ferredoxin + thioredoxin + H+
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r
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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
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additional information
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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
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additional information
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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
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additional information
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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
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additional information
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reduced ferredoxin (Fdx) is the electron donor for the DTR enzyme from cyanobacterium Gloeobacter violaceus (GvDTR)
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additional information
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reduced ferredoxin (Fdx) is the electron donor for the DTR enzyme from cyanobacterium Gloeobacter violaceus (GvDTR)
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additional information
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reduced ferredoxin (Fdx) is the electron donor for the DTR enzyme from cyanobacterium Gloeobacter violaceus (GvDTR)
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additional information
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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
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additional information
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midpoint potential of the active site disulfide/dithiol couple is -230 mV
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additional information
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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
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