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Literature summary for 4.1.1.86 extracted from

  • Yamamoto, S.; Tsuzaki, Y.; Kishi, R.; Nakao, H.
    Occurrence of L-2,4-diaminobutyrate decarboxylase activity in Acinetobacter (1991), Chem. Pharm. Bull., 39, 2451-2453.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
additional information L-2,4-diaminobutanoate induces enzyme expression Acinetobacter calcoaceticus

Inhibitors

Inhibitors Comment Organism Structure
carboxymethoxylamine PLP-dependent inhibitor, 42% inhibition at 0.5 mM, 78% inhibition at 1 mM Acinetobacter calcoaceticus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.91
-
L-2,4-diaminobutanoate pH 8.5, 37°C Acinetobacter calcoaceticus

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+
-
Acinetobacter calcoaceticus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-2,4-diaminobutanoate Acinetobacter calcoaceticus
-
propane-1,3-diamine + CO2
-
?

Organism

Organism UniProt Comment Textmining
Acinetobacter calcoaceticus
-
strains ATCC23055 and IFO12552
-

Purification (Commentary)

Purification (Comment) Organism
native enzyme 168fold by ammonium sulfate fractionation, ion exchange chromatography, and gel filtration Acinetobacter calcoaceticus

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.76
-
partially purified enzyme Acinetobacter calcoaceticus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-2,4-diaminobutanoate
-
Acinetobacter calcoaceticus propane-1,3-diamine + CO2
-
?
L-2,4-diaminobutanoate
-
Acinetobacter calcoaceticus propane-1,3-diamine + CO2 GC-MS product identification ?

Synonyms

Synonyms Comment Organism
DABA decarboxylase
-
Acinetobacter calcoaceticus
L-2,4-diaminobutyrate decarboxylase
-
Acinetobacter calcoaceticus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
assay at Acinetobacter calcoaceticus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
assay at Acinetobacter calcoaceticus

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate maximal activity at 0.1 mM PLP Acinetobacter calcoaceticus