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Literature summary for extracted from

  • Xun, L.; Bohuslavek, J.; Cai, M.
    Characterization of 2,6-dichloro-p-hydroquinone 1,2-dioxygenase (PcpA) of Sphingomonas chlorophenolica ATCC 39723 (1999), Biochem. Biophys. Res. Commun., 266, 322-325.
    View publication on PubMed


Cloned (Comment) Organism
expression in Escherichia coli Sphingobium chlorophenolicum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2,6-dichloro-p-hydroquinone pH 6.7, 22°C Sphingobium chlorophenolicum


Metals/Ions Comment Organism Structure
Iron Fe2+ is absolutely required, Km value 0.0046 mM Sphingobium chlorophenolicum


Organism UniProt Comment Textmining
Sphingobium chlorophenolicum Q9ZBB0 ATCC 39723

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2,6-dichloro-p-hydroquinone + O2
Sphingobium chlorophenolicum 2-chloromaleylacetate + Cl-
additional information no substrates: 2,5-dichloro-p-hydroquinone, 6-chlorohydroxyquinol, hydroxyquinol, 2-chloro-p-hydroquinone, catechol, and 4-fluorocatechol Sphingobium chlorophenolicum ?


Synonyms Comment Organism
Sphingobium chlorophenolicum

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
2,6-dichloro-p-hydroquinone pH 6.7, 22°C Sphingobium chlorophenolicum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
optimal in 20 mM potassium phosphate buffer Sphingobium chlorophenolicum

pH Range

pH Minimum pH Maximum Comment Organism
6.3 8
Sphingobium chlorophenolicum