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Literature summary for 1.11.1.21 extracted from

  • Appleby, C.; Poole, R.
    Characterization of a soluble catalase-peroxidase hemoprotein b-590, previously identified as cytochrome a1 from Bradyrhizobium japonicum bacteroids (1991), FEMS Microbiol. Lett., 78, 325-331.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
6.7
-
H2O2 catalase activity, pH and temperature not specified in the publication Bradyrhizobium japonicum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
68000
-
2 * 68000, gel filtration Bradyrhizobium japonicum
136000
-
gel filtration Bradyrhizobium japonicum

Organism

Organism UniProt Comment Textmining
Bradyrhizobium japonicum
-
-
-
Bradyrhizobium japonicum CC705
-
-
-

Purification (Commentary)

Purification (Comment) Organism
ammonium sulfate precipitation, DEAE-Sepharose column chromatography, and Sephacryl S300 gel filtration Bradyrhizobium japonicum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
guaiacol + H2O2
-
Bradyrhizobium japonicum tetraguaiacol + H2O
-
?
guaiacol + H2O2
-
Bradyrhizobium japonicum CC705 tetraguaiacol + H2O
-
?
H2O2
-
Bradyrhizobium japonicum O2 + H2O
-
?
H2O2
-
Bradyrhizobium japonicum CC705 O2 + H2O
-
?
o-dianisidine + H2O2
-
Bradyrhizobium japonicum oxidized o-dianisidine + H2O
-
?
o-dianisidine + H2O2
-
Bradyrhizobium japonicum CC705 oxidized o-dianisidine + H2O
-
?
reduced 2,3',6'-trichloroindophenol + H2O2
-
Bradyrhizobium japonicum oxidized 2,3',6'-trichloroindophenol + H2O
-
?
reduced 2,3',6'-trichloroindophenol + H2O2
-
Bradyrhizobium japonicum CC705 oxidized 2,3',6'-trichloroindophenol + H2O
-
?

Subunits

Subunits Comment Organism
homodimer 2 * 68000, gel filtration Bradyrhizobium japonicum

Synonyms

Synonyms Comment Organism
hemoprotein b-590
-
Bradyrhizobium japonicum

Cofactor

Cofactor Comment Organism Structure
heme the enzyme lacks heme a and is a high-spin ferric protohemoprotein Bradyrhizobium japonicum

pI Value

Organism Comment pI Value Maximum pI Value
Bradyrhizobium japonicum
-
6.4 5.8

General Information

General Information Comment Organism
physiological function hemoprotein b-590 plays a role in removal of peroxides generated during respiration Bradyrhizobium japonicum