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Literature summary for 2.7.1.26 extracted from

  • Mayhew, S.G.; Wassink, J.H.
    A continuous fluorometric assay for flavokinase. Properties of flavokinase from Peptostreptococcus elsdenii (1977), Biochim. Biophys. Acta, 482, 341-347.
    View publication on PubMed

General Stability

General Stability Organism
loss of activity during repeated freezing and thawing Megasphaera elsdenii

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0047
-
riboflavin pH 7.2, 37°C Megasphaera elsdenii
0.01
-
riboflavin pH 7.2, 37°C Megasphaera elsdenii

Organism

Organism UniProt Comment Textmining
Megasphaera elsdenii
-
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.0083
-
continuous fluorometric assay Megasphaera elsdenii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP + riboflavin 22% of the activity with ATP Megasphaera elsdenii AMP + FMN
-
?
ATP + 5-deazariboflavin
-
Megasphaera elsdenii ADP + 5-deazariboflavin 5'-phosphate
-
?
ATP + riboflavin
-
Megasphaera elsdenii ADP + FMN
-
?
GTP + riboflavin no activity Megasphaera elsdenii GDP + riboflavin 5'-phosphate
-
?

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
20 45 the relative activities at pH 7.2 and 20°C, 25°C, 37°C and 45°C are 0.22, 0.46, 1, and 1.35, respectively Megasphaera elsdenii

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
-
Megasphaera elsdenii

pH Range

pH Minimum pH Maximum Comment Organism
5 8.5 enzyme is active between pH 5 and 8.5 Megasphaera elsdenii