Inhibitors | Comment | Organism | Structure |
---|---|---|---|
hydroxylamine | complete inhibition at 10 mM, isoenzymes 1 and 2, 90% inhibition at 10 mM, isoenzyme 3 | Spinacia oleracea |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.55 | - |
H2S | pH 8.0, 25°C, isoenzyme 1 | Spinacia oleracea | |
1.25 | - |
H2S | pH 8.0, 25°C, isoenzyme 2 | Spinacia oleracea | |
2.5 | - |
H2S | pH 8.0, 25°C, isoenzyme 3 | Spinacia oleracea | |
3.57 | - |
O-acetyl-L-Ser | pH 8.0, 25°C, isoenzyme 1 | Spinacia oleracea | |
5.26 | - |
O-acetyl-L-Ser | pH 8.0, 25°C, isoenzyme 3 | Spinacia oleracea | |
5.56 | - |
O-acetyl-L-Ser | pH 8.0, 25°C, isoenzyme 2 | Spinacia oleracea |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
chloroplast | - |
Spinacia oleracea | 9507 | - |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
34000 | - |
2 * 34000, SDS-PAGE | Spinacia oleracea |
63000 | - |
all isoenzymes, gel filtration | Spinacia oleracea |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Spinacia oleracea | - |
three isoenzymes | - |
Purification (Comment) | Organism |
---|---|
- |
Spinacia oleracea |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
leaf | - |
Spinacia oleracea | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
400 | - |
isoenzyme 1 | Spinacia oleracea |
1400 | - |
isoenzyme 2 | Spinacia oleracea |
1431 | - |
isoenzyme 3 | Spinacia oleracea |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
O-acetyl-L-serine | - |
Spinacia oleracea | L-cysteine + acetate | - |
? |
Subunits | Comment | Organism |
---|---|---|
dimer | 2 * 34000, SDS-PAGE | Spinacia oleracea |
More | amino acid composition | Spinacia oleracea |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
50 | - |
2 min, all isoenzymes stable | Spinacia oleracea |
65 | - |
2 min, isoenzyme 1 loses 50% loss of activity, isoenzymes 2 loses 25% of its activity, no loss of activity, isoenzyme 3 | Spinacia oleracea |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
8 | - |
broad optimum around | Spinacia oleracea |