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Literature summary for 1.5.1.3 extracted from

  • Ohmae, E.; Tatsuta, M.; Abe, F.; Kato, C.; Tanaka, N.; Kunugi, S.; Gekko, K.
    Effects of pressure on enzyme function of Escherichia coli dihydrofolate reductase (2008), Biochim. Biophys. Acta, 1784, 1115-1121.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information enzyme activity decreases with increasing pressure. The Km values for dihydrofolate and NADPH are slightly higher at 200 MPa than at atmospheric pressure. The hydride transfer step is insensitive to pressure, while the dissociation constants of substrates and cofactors increase with pressure Escherichia coli
0.0046
-
NADPH 25°C, pH 7.0, pressure 200 MPa Escherichia coli
0.0178
-
7,8-dihydrofolate 25°C, pH 7.0, pressure 0.1 MPa Escherichia coli
0.0195
-
7,8-dihydrofolate 25°C, pH 7.0, pressure 200 MPa Escherichia coli

Organism

Organism UniProt Comment Textmining
Escherichia coli P0ABQ4
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
7,8-dihydrofolate + NADPH + H+
-
Escherichia coli 5,6,7,8-tetrahydrofolate + NADP+
-
?
additional information enzyme activity decreases with increasing pressure. The Km values for dihydrofolate and NADPH are slightly higher at 200 MPa than at atmospheric pressure. The hydride transfer step is insensitive to pressure, while the dissociation constants of substrates and cofactors increase with pressure Escherichia coli ?
-
?

Cofactor

Cofactor Comment Organism Structure
NADPH
-
Escherichia coli