Data extracted from this reference:
Activating Compound
4-aminobutyrate
stimulation, 177% of non-stimulated activity
Clostridium butyricum
D-asparagine
stimulation, 112% of non-stimulated activity
Clostridium butyricum
D-cysteine
stimulation, 135% of non-stimulated activity
Clostridium butyricum
D-methionine
stimulation, 127% of non-stimulated activity
Clostridium butyricum
DL-Ornithine
stimulation, 112% of non-stimulated activity
Clostridium butyricum
glycine
stimulation, 137% of non-stimulated activity
Clostridium butyricum
L-asparagine
stimulation, 112% of non-stimulated activity
Clostridium butyricum
L-glutamate
stimulation, 166% of non-stimulated activity
Clostridium butyricum
L-lysine
stimulation, 105% of non-stimulated activity
Clostridium butyricum
L-methionine
stimulation, 114% of non-stimulated activity
Clostridium butyricum
L-ornithine
stimulation, 112% of non-stimulated activity
Clostridium butyricum
additional information
stimulating effect of amino compounds may be caused by disappearance of the inhibitory product of the reaction, pyridoxal 5'-phosphate, forming the corresponding Schiff base
Clostridium butyricum
Inhibitors
D-glutamate
slight inhibition
Clostridium butyricum
diisopropyl phosphofluoride
0.3 mM, complete inhibition
Clostridium butyricum
L-cysteine
about 35% inhibition
Clostridium butyricum
additional information
not inhibited by sulfhydryl compounds, e.g. PCMB, phenylmercuric acetate and mercuric chloride
Clostridium butyricum
pyridoxal 5'-phosphate
product inhibition
Clostridium butyricum
KM Value [mM]
0.004
pyridoxamine 5'-phosphate
pH 8.0, 37°C
Clostridium butyricum
0.01
pyridoxal 5'-phosphate
pH 8.0, 37°C
Clostridium butyricum
0.015
2-oxoglutarate
cosubstrate pyridoxamine 5'-phosphate, pH 8.0, 37°C
Clostridium butyricum
9
D-glutamate
pH 8.0, 37°C
Clostridium butyricum
Metals/Ions
additional information
metal ions do not accelerate the reaction
Clostridium butyricum
Organism
Clostridium butyricum
IFO 3353
Purification (Commentary)
ammonium sulfate, protamine treatment, DEAE-cellulose, hydroxylapatite, DEAE-Sephadex, Sephadex G-200, partial purification
Clostridium butyricum
Specific Activity [micromol/min/mg]
0.281
Clostridium butyricum
Substrates and Products (Substrate)
4-aminobutanoate + 2-oxoglutarate
about 8% of activity compared to pyridoxamine 5'-phosphate
637633
Clostridium butyricum
4-oxobutanoate + D-glutamate
637633
Clostridium butyricum
?
pyridoxamine + 2-oxoglutarate
about 25% of activity compared to pyridoxamine 5'-phosphate
637633
Clostridium butyricum
pyridoxal + D-glutamate
637633
Clostridium butyricum
?
pyridoxamine 5'-phosphate + 2-oxoglutarate
637633
Clostridium butyricum
pyridoxal 5'-phosphate + D-glutamate
637633
Clostridium butyricum
r
Temperature Optimum [°C]
37
assay at
Clostridium butyricum
pH Optimum
Activating Compound (protein specific)
4-aminobutyrate
stimulation, 177% of non-stimulated activity
Clostridium butyricum
D-asparagine
stimulation, 112% of non-stimulated activity
Clostridium butyricum
D-cysteine
stimulation, 135% of non-stimulated activity
Clostridium butyricum
D-methionine
stimulation, 127% of non-stimulated activity
Clostridium butyricum
DL-Ornithine
stimulation, 112% of non-stimulated activity
Clostridium butyricum
glycine
stimulation, 137% of non-stimulated activity
Clostridium butyricum
L-asparagine
stimulation, 112% of non-stimulated activity
Clostridium butyricum
L-glutamate
stimulation, 166% of non-stimulated activity
Clostridium butyricum
L-lysine
stimulation, 105% of non-stimulated activity
Clostridium butyricum
L-methionine
stimulation, 114% of non-stimulated activity
Clostridium butyricum
L-ornithine
stimulation, 112% of non-stimulated activity
Clostridium butyricum
additional information
stimulating effect of amino compounds may be caused by disappearance of the inhibitory product of the reaction, pyridoxal 5'-phosphate, forming the corresponding Schiff base
Clostridium butyricum
Inhibitors (protein specific)
D-glutamate
slight inhibition
Clostridium butyricum
diisopropyl phosphofluoride
0.3 mM, complete inhibition
Clostridium butyricum
L-cysteine
about 35% inhibition
Clostridium butyricum
additional information
not inhibited by sulfhydryl compounds, e.g. PCMB, phenylmercuric acetate and mercuric chloride
Clostridium butyricum
pyridoxal 5'-phosphate
product inhibition
Clostridium butyricum
KM Value [mM] (protein specific)
0.004
pyridoxamine 5'-phosphate
pH 8.0, 37°C
Clostridium butyricum
0.01
pyridoxal 5'-phosphate
pH 8.0, 37°C
Clostridium butyricum
0.015
2-oxoglutarate
cosubstrate pyridoxamine 5'-phosphate, pH 8.0, 37°C
Clostridium butyricum
9
D-glutamate
pH 8.0, 37°C
Clostridium butyricum
Metals/Ions (protein specific)
additional information
metal ions do not accelerate the reaction
Clostridium butyricum
Purification (Commentary) (protein specific)
ammonium sulfate, protamine treatment, DEAE-cellulose, hydroxylapatite, DEAE-Sephadex, Sephadex G-200, partial purification
Clostridium butyricum
Specific Activity [micromol/min/mg] (protein specific)
0.281
Clostridium butyricum
Substrates and Products (Substrate) (protein specific)
4-aminobutanoate + 2-oxoglutarate
about 8% of activity compared to pyridoxamine 5'-phosphate
637633
Clostridium butyricum
4-oxobutanoate + D-glutamate
637633
Clostridium butyricum
?
pyridoxamine + 2-oxoglutarate
about 25% of activity compared to pyridoxamine 5'-phosphate
637633
Clostridium butyricum
pyridoxal + D-glutamate
637633
Clostridium butyricum
?
pyridoxamine 5'-phosphate + 2-oxoglutarate
637633
Clostridium butyricum
pyridoxal 5'-phosphate + D-glutamate
637633
Clostridium butyricum
r
Temperature Optimum [°C] (protein specific)
37
assay at
Clostridium butyricum
pH Optimum (protein specific)
Other publictions for EC 2.6.1.54
637633
Tani
-
Studies on vitamin b6 metaboli ...
Clostridium butyricum
Agric. Biol. Chem.
36
181-188
1972
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