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Literature summary for 1.14.16.1 extracted from

  • Fujisawa, H.; Nakata, H.
    Phenylalanine 4-monooxygenase from Chromobacterium violaceum (1987), Methods Enzymol., 142, 44-49.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.054
-
2-amino-4-hydroxy-6,7-dimethyltetrahydropteridine
-
Chromobacterium violaceum
0.14
-
L-phenylalanine
-
Chromobacterium violaceum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
31000 32400
-
Chromobacterium violaceum
33000
-
1 * 33000, SDS-PAGE Chromobacterium violaceum

Organism

Organism UniProt Comment Textmining
Chromobacterium violaceum
-
-
-

Purification (Commentary)

Purification (Comment) Organism
protamine, DEAE-Sephadex, acid, DEAE-cellulose, Ultrogel, hydroxylapatite, Blue dextran-phenyl-butylamine-Sepharose Chromobacterium violaceum

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
13.2
-
-
Chromobacterium violaceum

Storage Stability

Storage Stability Organism
-20°C, 50 mM acetate, pH 6.0, 3 months, 20% loss of activity Chromobacterium violaceum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3-phenylserine + tetrahydrobiopterin + O2
-
Chromobacterium violaceum ?
-
?
L-phenylalanine + 2-amino-4-hydroxy-6,7-dimethyltetrahydropteridine
-
Chromobacterium violaceum ?
-
r
L-phenylalanine + tetrahydrobiopterin + O2 additional electron donors: 2-amino-4-hydroxy-6,7-dimethyltetrahydropteridine, 2-amino-4-hydroxy-6-methyltetrahydropteridine, tetrahydrofolate, and 6-methyl-5-deazatetrahydropterin Chromobacterium violaceum L-tyrosine + dihydrobiopterin + H2O
-
?
L-tryptophan + tetrahydrobiopterin + O2 0.4% of activity with L-phenylalanine Chromobacterium violaceum ?
-
?

Subunits

Subunits Comment Organism
monomer 1 * 33000, SDS-PAGE Chromobacterium violaceum

Cofactor

Cofactor Comment Organism Structure
additional information artificial cofactors: 2-amino-4-hydroxy-6,7-dimethyltetrahydropteridine, 6-methyl-5-deazatetrahydropterin and 2-amino-4-hydroxy-6-methyltetrahydropteridine can replace tetrahydrobiopterin Chromobacterium violaceum
tetrahydrobiopterin
-
Chromobacterium violaceum
tetrahydrofolate
-
Chromobacterium violaceum