Inhibitors | Comment | Organism | Structure |
---|---|---|---|
L-homoserine | competitive inhibition | Saccharomyces cerevisiae | |
L-methionine | competitive inhibition | Saccharomyces cerevisiae | |
additional information | L-serine, glycine and L-alanine are not inhibitors, dithiothreitol and p-chloromercuribenzoate shows no inhibitory effect | Saccharomyces cerevisiae | |
O-acetyl-L-serine | competitive inhibition | Saccharomyces cerevisiae | |
O-succinyl-DL-homoserine | competitive inhibition | Saccharomyces cerevisiae |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
4.55 | - |
O-acetyl-L-homoserine | - |
Saccharomyces cerevisiae |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
480000 | - |
gel filtration, larger than, no correct value could be estimated | Saccharomyces cerevisiae |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
O-acetyl-L-homoserine + H2S | Saccharomyces cerevisiae | - |
L-homocysteine + acetic acid | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Saccharomyces cerevisiae | - |
baker's yeast | - |
Purification (Comment) | Organism |
---|---|
partial | Saccharomyces cerevisiae |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
19.2 | - |
- |
Saccharomyces cerevisiae |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | O-acetyl-L-threonine, O-acetyl-L-tyrosine, O-acetyl-L-hydroxyproline and O-succinyl-DL-homoserine are no substrates | Saccharomyces cerevisiae | ? | - |
? | |
additional information | cystathionine is not synthesized from O-acetylhomoserine and cysteine, O-acetyl-L-serine is no substrate | Saccharomyces cerevisiae | ? | - |
? | |
O-acetyl-L-homoserine + ethyl mercaptan | - |
Saccharomyces cerevisiae | L-ethionine + acetic acid | - |
? | |
O-acetyl-L-homoserine + H2S | - |
Saccharomyces cerevisiae | L-homocysteine + acetic acid | - |
? | |
O-acetyl-L-homoserine + methyl mercaptan | - |
Saccharomyces cerevisiae | L-methionine + acetic acid | - |
? |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.8 | - |
- |
Saccharomyces cerevisiae |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
5.5 | 8.5 | - |
Saccharomyces cerevisiae |
pH Stability | pH Stability Maximum | Comment | Organism |
---|---|---|---|
7.8 | 8 | most stable at | Saccharomyces cerevisiae |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
pyridoxal 5'-phosphate | absolutely required for activity, Km 0.00294 mM | Saccharomyces cerevisiae |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
0.9 | - |
L-methionine | - |
Saccharomyces cerevisiae | |
16 | - |
L-homoserine | - |
Saccharomyces cerevisiae | |
19 | - |
O-succinyl-DL-homoserine | - |
Saccharomyces cerevisiae | |
21.8 | - |
O-acetyl-L-serine | - |
Saccharomyces cerevisiae |