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Literature summary extracted from

  • Han, M.H.; Seong, B.L.; Son, H.J.; Mheen, T.I.
    Rifamycin B oxidase from Monocillium spp., a new type of diphenol oxidase (1983), FEBS Lett., 151, 36-40.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.10.3.6 FAD slight activation Monocillium spp.

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.10.3.6 NADH apparent inhibition Monocillium spp.
1.10.3.6 NADPH apparent inhibition Monocillium spp.

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.10.3.6 rifamycin B + O2 Monocillium spp. reverse reaction of rifamycin B biosynthesis rifamycin O + H2O2
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
1.10.3.6 Monocillium spp.
-
 ATCC 20621
-

Purification (Commentary)

EC Number Purification (Comment) Organism
1.10.3.6 ammonium sulfate precipitation, ion-exchange, gel filtration Monocillium spp.

Reaction

EC Number Reaction Comment Organism Reaction ID
1.10.3.6 rifamycin B + O2 = rifamycin O + H2O2 acting on diphenols and related substances as electron donors and on oxygen as an electron acceptor Monocillium spp.
a

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.10.3.6 3.19
-
-
 Monocillium spp.

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.10.3.6 p-hydroquinone + O2 rapid oxidation Monocillium spp. ?
-
 ?
1.10.3.6 pyrogallol + ?
-
 Monocillium spp. ?
-
 ?
1.10.3.6 rifamycin B + O2 rapid oxidation Monocillium spp. rifamycin O + H2O2
-
 ?
1.10.3.6 rifamycin B + O2 reverse reaction of rifamycin B biosynthesis Monocillium spp. rifamycin O + H2O2
-
 ?
1.10.3.6 rifamycin SV + ?
-
 Monocillium spp. ?
-
 ?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
1.10.3.6 37 40 assay at Monocillium spp.

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.10.3.6 7.8
-
 assay at Monocillium spp.

Cofactor

EC Number Cofactor Comment Organism Structure
1.10.3.6 additional information enzyme contains no flavins, heme, Cu2+ or other metal ions Monocillium spp.