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Literature summary for 2.4.1.82 extracted from

  • Li, T.; Dong, M.; Xie, W.; Zhang, Y.; Tao, D.; Li, S.
    Kinetic properties of raffinose synthase from rice (Oryza sativa L.) (2018), Food Biosci., 25, 39-43 .
No PubMed abstract available

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.15
-
galactinol pH 7.0, 45°C Oryza sativa
10.9
-
raffinose pH 7.0, 45°C Oryza sativa
12
-
4-nitrophenol-alpha-D-galactopyranoside pH 7.0, 45°C Oryza sativa

Organism

Organism UniProt Comment Textmining
Oryza sativa
-
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.185
-
substrate 4-nitrophenol-alpha-D-galactopyranoside, pH 7.0, 45°C Oryza sativa
0.2
-
substrate raffinose, pH 7.0, 45°C Oryza sativa
0.56
-
substrate galactinol, pH 7.0, 45°C Oryza sativa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-nitrophenol-alpha-D-galactopyranoside + sucrose
-
Oryza sativa 4-nitrophenol + raffinose
-
r
galactinol + sucrose
-
Oryza sativa myo-inositol + raffinose
-
r
additional information catalysis best fits to a Ping-Pong Bi-Bi mechanism. The reaction is reversible, the forward reactions synthesizing raffinose approach equilibrium after 4 h, and the Keq is calculated to be 4.46 Oryza sativa ?
-
-
myo-inositol + raffinose
-
Oryza sativa galactinol + sucrose
-
r