Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Iron | component T4MOC contains a Rieske-type iron-sulfur center | Pseudomonas mendocina |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
9600 | - |
- |
Pseudomonas mendocina |
11600 | - |
- |
Pseudomonas mendocina |
35000 | - |
- |
Pseudomonas mendocina |
55000 | - |
- |
Pseudomonas mendocina |
220000 | - |
diiron hydrolase T4moH, gel filtration | Pseudomonas mendocina |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Pseudomonas mendocina | Q00456 and Q00457 and Q00460 and Q00458 and Q00459 | Q00456, Q00457 an Q00460 are components TmoA, TmoB and TmoE of diiron hydroxylase T4MOH, respectively, Q00458 i.e. Rieske-type ferredoxin T4MOC, Q00459 i.e. effector protein T4MOD | - |
Pseudomonas mendocina KR1 | Q00456 and Q00457 and Q00460 and Q00458 and Q00459 | Q00456, Q00457 an Q00460 are components TmoA, TmoB and TmoE of diiron hydroxylase T4MOH, respectively, Q00458 i.e. Rieske-type ferredoxin T4MOC, Q00459 i.e. effector protein T4MOD | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
23890 | - |
pH 7.5, 25°C | Pseudomonas mendocina |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
toluene + NADH + H+ + O2 | - |
Pseudomonas mendocina | 4-methylphenol + NAD+ + H2O | - |
? | |
toluene + NADH + H+ + O2 | - |
Pseudomonas mendocina KR1 | 4-methylphenol + NAD+ + H2O | - |
? |
Subunits | Comment | Organism |
---|---|---|
? | x * 11600, component T4MOD, calculated, x * 9600, component T4moB, calculated, and x * 55000, T4moh component T4moA, * 35000, T4moH component T4moE, SDS-PAGE | Pseudomonas mendocina |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
iron-sulfur centre | component T4MOC contains a Rieske-type iron-sulfur center | Pseudomonas mendocina |
General Information | Comment | Organism |
---|---|---|
physiological function | proteins required for the in Vitro reconstitution of T4MO catalytic activity are a diiron hydroxylase (T4MOH), a Rieske-type ferredoxin (T4MOC), an effector protein (T4MOD), and an NADH oxidoreductase (T4MOF). The T4MOH component is composed of the tmoA, tmoB, and tmoE gene products with quaternary structure (alpha,beta,epsilon)2. T4MOH is the hydroxylase, the NADH-dependent multiple-turnover hydroxylation activity is increased by more than 100fold in the presence of T4MOC, which mediates highly specific electron transfer between T4MOF and T4MOH. T4MOD is a 11.6 kDa monomeric protein devoid of cofactors or redox-active metal ions and is also detected as a substoichiometric consitutent of the purified T4MOH. The rate of the hydroxylation reaction can be mildly stimulated by the further addition of separately purified T4MOD to the T4MOH | Pseudomonas mendocina |