Inhibitors | Comment | Organism | Structure |
---|---|---|---|
L-cysteine | 28-41% inhibition at 4.5 mM, isoenzyme-dependent | Rhodocyclus tenuis | |
S-sulfocysteine | 24% inhibition at 4.5 mM, isoenzyme 1 | Rhodocyclus tenuis | |
Sulfide | - |
Rhodocyclus tenuis |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.6 | - |
H2S | isoenzyme 1 and 2 | Rhodocyclus tenuis | |
2.9 | - |
O-acetyl-L-Ser | isoenzyme 1 | Rhodocyclus tenuis | |
50 | - |
O-acetyl-L-Ser | isoenzyme 2 | Rhodocyclus tenuis |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
46000 | - |
isoenzyme 2, gel filtration | Rhodocyclus tenuis |
57000 | - |
isoenzyme 1, gel filtration | Rhodocyclus tenuis |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
O-acetyl-L-Ser + sulfide | Rhodocyclus tenuis | repressed during growth with sulfide or thiosulfide as sulfur source | L-Cys + acetate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Rhodoblastus acidophilus | - |
- |
- |
Rhodocyclus purpureus | - |
- |
- |
Rhodocyclus tenuis | - |
two isoenzymes, one with additional S-sulfocysteine synthase activity | - |
Rhodomicrobium vannielii | - |
- |
- |
Thiocystis violacea | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Rhodocyclus tenuis |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
130 | - |
isoenzyme 1 | Rhodocyclus tenuis |
143 | - |
isoenzyme 2 | Rhodocyclus tenuis |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
O-acetyl-L-Ser + sulfide | repressed during growth with sulfide or thiosulfide as sulfur source | Rhodocyclus tenuis | L-Cys + acetate | - |
? | |
O-acetyl-L-serine | - |
Rhodocyclus tenuis | L-cysteine + acetate | - |
? |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.3 | 8.2 | isoenzyme 1 | Rhodocyclus tenuis |
7.7 | - |
- |
Rhodocyclus tenuis |