KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.05 | - |
O-succinyl-L-homoserine | pH 7.3, 30°C, reaction with H2S | Salmonella enterica subsp. enterica serovar Typhimurium | |
0.07 | - |
O-succinyl-L-homoserine | pH 7.3, 30°C, gamma-replacement reaction | Salmonella enterica subsp. enterica serovar Typhimurium | |
0.3 | - |
O-succinyl-L-homoserine | pH 7.3, 30°C, gamma-elimination reaction | Salmonella enterica subsp. enterica serovar Typhimurium | |
3 | - |
H2S | pH 7.3, 30°C, gamma-replacement reaction | Salmonella enterica subsp. enterica serovar Typhimurium | |
4 | - |
O-succinyl-L-homoserine | pH 7.3, 30°C, gamma-replacement reaction | Salmonella enterica subsp. enterica serovar Typhimurium | |
9 | - |
O-succinyl-L-homoserine | pH 7.3, 30°C, reaction wirh CH3SH | Salmonella enterica subsp. enterica serovar Typhimurium | |
100 | - |
CH3SH | pH 7.3, 30°C, gamma-replacement reaction | Salmonella enterica subsp. enterica serovar Typhimurium |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
O-succinyl-L-homoserine + L-cysteine | Salmonella enterica subsp. enterica serovar Typhimurium | essential step in bacterial methionine biosynthesis | L-cystathionine + succinate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Salmonella enterica subsp. enterica serovar Typhimurium | - |
- |
- |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
O4-succinyl-L-homoserine + L-cysteine = L-cystathionine + succinate | can also use hydrogen sulfide and methanethiol as substrates producing homocysteine and methionine respectively. In the absence of thiol, the enzyme can also catalyse beta,gamma-elimination to form 2-oxobutanoate, succinate and ammonia | Salmonella enterica subsp. enterica serovar Typhimurium |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
O-succinyl-L-homoserine + CH3SH | - |
Salmonella enterica subsp. enterica serovar Typhimurium | L-methionine + succinate | - |
? | |
O-succinyl-L-homoserine + H2O | gamma-elimination, in absence of L-cysteine | Salmonella enterica subsp. enterica serovar Typhimurium | succinate + 2-oxobutyrate + NH3 | - |
? | |
O-succinyl-L-homoserine + H2S | - |
Salmonella enterica subsp. enterica serovar Typhimurium | L-homocysteine + succinate | - |
? | |
O-succinyl-L-homoserine + L-cysteine | - |
Salmonella enterica subsp. enterica serovar Typhimurium | L-cystathionine + succinate | - |
? | |
O-succinyl-L-homoserine + L-cysteine | essential step in bacterial methionine biosynthesis | Salmonella enterica subsp. enterica serovar Typhimurium | L-cystathionine + succinate | - |
? |