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Literature summary for 3.5.3.7 extracted from

  • Nakada, Y.; Itoh, Y.
    Characterization and regulation of the gbuA gene, encoding guanidinobutyrase in the arginine dehydrogenase pathway of Pseudomonas aeruginosa PAO1 (2002), J. Bacteriol., 184, 3377-3384.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Pseudomonas aeruginosa

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
49
-
4-Guanidinobutyrate pH 9.5, 0.134 mM MnSO4, 37°C Pseudomonas aeruginosa

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
34000
-
4 * 34000, gel filtration, SDS-PAGE Pseudomonas aeruginosa
34700
-
monomer, calculated from amino acid sequence Pseudomonas aeruginosa
140000
-
gel filtration Pseudomonas aeruginosa

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
4-Guanidinobutyrate + H2O Pseudomonas aeruginosa
-
4-Aminobutyrate + urea
-
?

Organism

Organism UniProt Comment Textmining
Pseudomonas aeruginosa
-
PAO1
-

Purification (Commentary)

Purification (Comment) Organism
-
Pseudomonas aeruginosa

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
4.7
-
-
Pseudomonas aeruginosa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-Guanidinobutyrate + H2O
-
Pseudomonas aeruginosa 4-Aminobutyrate + urea
-
?
4-Guanidinobutyrate + H2O pH 9.5, 0.134 mM MnSO4, 37°C Pseudomonas aeruginosa 4-Aminobutyrate + urea
-
?
additional information no activity with arginine, agmatine, 3-guanidinopropionate and guanidinoacetate Pseudomonas aeruginosa ?
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 34000, gel filtration, SDS-PAGE Pseudomonas aeruginosa

Synonyms

Synonyms Comment Organism
GBase
-
Pseudomonas aeruginosa
guanidinobutyrase
-
Pseudomonas aeruginosa

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
1012
-
4-Guanidinobutyrate pH 9.5, 0.134 mM MnSO4, 37°C Pseudomonas aeruginosa

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
9.5
-
-
Pseudomonas aeruginosa