Activating Compound | Comment | Organism | Structure |
---|---|---|---|
NaCl | quinone-dependent activity decreases at concentration below 0.1 M and over 0.5 M | Arthrospira platensis | |
NaCl | quinone-dependent activity decreases at concentrations below 0.1 M and over 0.7 M | Cyanidium caldarium |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
NaCl | ferredoxin-dependent activity decreases with increasing NaCl concentration and disappears at concentrations over 0.5 M NaCl | Arthrospira platensis | |
NaCl | ferredoxin-dependent activity decreases with increasing NaCl concentration and disappears at concentrations over 0.5 M NaCl | Cyanidium caldarium |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0011 | - |
NADPH | in a quinone-dependent cytochrome c reduction assay | Arthrospira platensis | |
0.0011 | - |
NADPH | in a quinone-dependent cytochrome c reduction assay | Cyanidium caldarium | |
0.004 | - |
NADPH | in a ferredoxin-dependent cytochrome c reduction assay | Arthrospira platensis | |
0.004 | - |
NADPH | in a ferredoxin-dependent cytochrome c reduction assay | Cyanidium caldarium | |
0.011 | - |
NADPH | in a 2,6-dichlorophenolindophenol reduction assay | Arthrospira platensis | |
0.02 | - |
NADPH | in a 2,6-dichlorophenolindophenol reduction assay | Cyanidium caldarium |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
phycobilisome | - |
Arthrospira platensis | 30089 | - |
thylakoid membrane | - |
Arthrospira platensis | 42651 | - |
thylakoid membrane | - |
Cyanidium caldarium | 42651 | - |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
33000 | - |
SDS-PAGE | Cyanidium caldarium |
34000 | - |
gel filtration | Cyanidium caldarium |
46000 | - |
SDS-PAGE | Arthrospira platensis |
47000 | - |
gel filtration | Arthrospira platensis |
90000 | - |
NaCl solubilized FNR from Spirulina platensis thylakoid membranes contained the 46000 Da FNR and a 17000 Da protein | Arthrospira platensis |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Arthrospira platensis | - |
cyanobacterium | - |
Arthrospira platensis IAM M-135 | - |
cyanobacterium | - |
Cyanidium caldarium | A0ZSY5 | red alga | - |
Cyanidium caldarium RK-1 | A0ZSY5 | red alga | - |
Purification (Comment) | Organism |
---|---|
- |
Arthrospira platensis |
- |
Cyanidium caldarium |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
25 | - |
ferredoxin-dependent activity at pH 9.5 | Cyanidium caldarium |
30 | - |
ferredoxin-dependent activity at pH 10 | Arthrospira platensis |
60 | - |
quinone-dependent activity at pH 7.5 | Arthrospira platensis |
60 | - |
quinone-dependent activity at pH 7.5 | Cyanidium caldarium |
70 | - |
ferredoxin-dependent activity at pH 6.5 | Arthrospira platensis |
77 | - |
- |
Cyanidium caldarium |
85 | - |
- |
Arthrospira platensis |
95 | - |
ferredoxin-dependent activity at pH 7 | Arthrospira platensis |
110 | - |
ferredoxin-dependent activity at pH 6.5 | Cyanidium caldarium |
140 | - |
ferredoxin-dependent activity at pH 7 | Cyanidium caldarium |
260 | - |
quinone-dependent activity at pH 10 | Arthrospira platensis |
280 | - |
quinone-dependent activity at pH 9.7 | Arthrospira platensis |
325 | - |
quinone-dependent activity at pH 10 | Cyanidium caldarium |
400 | - |
quinone-dependent activity at pH 9.7 | Cyanidium caldarium |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
NADPH + H+ + oxidized 2,6-dichlorophenolindophenol | - |
Arthrospira platensis | NADP+ + reduced 2,6-dichlorophenolindophenol | - |
? | |
NADPH + H+ + oxidized 2,6-dichlorophenolindophenol | - |
Cyanidium caldarium | NADP+ + reduced 2,6-dichlorophenolindophenol | - |
? | |
NADPH + H+ + oxidized 2,6-dichlorophenolindophenol | - |
Arthrospira platensis IAM M-135 | NADP+ + reduced 2,6-dichlorophenolindophenol | - |
? | |
NADPH + H+ + oxidized 2,6-dichlorophenolindophenol | - |
Cyanidium caldarium RK-1 | NADP+ + reduced 2,6-dichlorophenolindophenol | - |
? | |
oxidized ferredoxin + NADPH + cytochrome c | - |
Arthrospira platensis | reduced ferredoxin + NADP+ + reduced cytochrome c | - |
? | |
oxidized ferredoxin + NADPH + cytochrome c | - |
Cyanidium caldarium | reduced ferredoxin + NADP+ + reduced cytochrome c | - |
? | |
oxidized ferredoxin + NADPH + cytochrome c | - |
Arthrospira platensis IAM M-135 | reduced ferredoxin + NADP+ + reduced cytochrome c | - |
? | |
oxidized ferredoxin + NADPH + cytochrome c | - |
Cyanidium caldarium RK-1 | reduced ferredoxin + NADP+ + reduced cytochrome c | - |
? | |
phenyl-p-benzoquinone + NADPH + cytochrome c | - |
Arthrospira platensis | ? + NADP+ + reduced cytochrome c | - |
? | |
phenyl-p-benzoquinone + NADPH + cytochrome c | - |
Cyanidium caldarium | ? + NADP+ + reduced cytochrome c | - |
? | |
phenyl-p-benzoquinone + NADPH + cytochrome c | - |
Arthrospira platensis IAM M-135 | ? + NADP+ + reduced cytochrome c | - |
? | |
phenyl-p-benzoquinone + NADPH + cytochrome c | - |
Cyanidium caldarium RK-1 | ? + NADP+ + reduced cytochrome c | - |
? |
Subunits | Comment | Organism |
---|---|---|
monomer | 1 * 34000, gel filtration | Cyanidium caldarium |
monomer | 1 * 47000, gel filtration | Arthrospira platensis |
Synonyms | Comment | Organism |
---|---|---|
ferredoxin-NADP+ oxidoreductase | - |
Arthrospira platensis |
ferredoxin-NADP+ oxidoreductase | - |
Cyanidium caldarium |
FNR | - |
Arthrospira platensis |
FNR | - |
Cyanidium caldarium |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
40 | - |
in a 2,6-dichlorophenolindophenol reduction assay | Arthrospira platensis |
40 | - |
in a ferredoxin-dependent cytochrome c reduction assay | Arthrospira platensis |
45 | - |
in a quinone-dependent cytochrome c reduction assay | Arthrospira platensis |
50 | - |
in a ferredoxin-dependent cytochrome c reduction assay | Cyanidium caldarium |
55 | - |
in a 2,6-dichlorophenolindophenol reduction assay | Cyanidium caldarium |
55 | - |
in a quinone-dependent cytochrome c reduction assay | Cyanidium caldarium |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7 | - |
in a ferredoxin-dependent cytochrome c reduction assay | Arthrospira platensis |
7 | - |
in a ferredoxin-dependent cytochrome c reduction assay | Cyanidium caldarium |
9.7 | - |
in a 2,6-dichlorophenolindophenol reduction assay | Arthrospira platensis |
9.7 | - |
in a 2,6-dichlorophenolindophenol reduction assay | Cyanidium caldarium |
9.7 | - |
in a quinone-dependent cytochrome c reduction assay | Arthrospira platensis |
9.7 | - |
in a quinone-dependent cytochrome c reduction assay | Cyanidium caldarium |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
6.5 | 10 | ferredoxin-dependent activity at pH 6.5 is 70 micromol/min/mg, at pH 7 is 95 micromol/min/mg and at pH 10 is 30 micromol/min/mg | Arthrospira platensis |
6.5 | 9.5 | ferredoxin-dependent activity at pH 6.5 is 110 micromol/min/mg, at pH 7 is 140 micromol/min/mg and at pH 9.5is 25 micromol/min/mg | Cyanidium caldarium |
7.5 | 10 | quinone-dependent activity at pH 7.5 is 60 micromol/min/mg, at pH 9.7 is 280 micromol/min/mg and at pH 10 is 260 micromol/min/mg | Arthrospira platensis |
7.5 | 10 | quinone-dependent activity at pH 7.5 is 60 micromol/min/mg, at pH 9.7 is 400 micromol/min/mg and at pH 10 is 325 micromol/min/mg | Cyanidium caldarium |