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Literature summary for 6.3.2.12 extracted from

  • Ikeda, M.; Iwai, K.
    Some characteristics of the dihydrofolate synthetase from Serratia indica (1976), J. Nutr. Sci. Vitaminol., 22, 365-373.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
dihydrohomopteroic acid
-
Serratia indica
Tetrahydrohomopteroate
-
Serratia indica

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.00025
-
7,8-dihydropteroate with addition of 100 mM K+ Serratia indica
0.0013
-
7,8-dihydropteroate with addition of 7.5 mM K+ Serratia indica
0.22
-
ATP with addition of 100 mM K+ Serratia indica
0.25
-
L-Glu with addition of 100 mM K+ Serratia indica
0.29
-
ATP with addition of 7.5 mM K+ Serratia indica
9.1
-
L-Glu with addition of 7.5 mM K+ Serratia indica

Metals/Ions

Metals/Ions Comment Organism Structure
Fe2+ divalent cation requirement is satisfied by Mg2+, Mn2+ or Fe2+ Serratia indica
K+ optimal concentration is 50 mM Serratia indica
K+ Km: 7 mM Serratia indica
K+ monovalent cation requirement is satisfied by K+, Rb+ or NH4+ Serratia indica
Mg2+ maximal activity at 5 mM, inhibition at higher concentration Serratia indica
Mg2+ divalent cation requirement is satisfied by Mg2+, Mn2+ or Fe2+ Serratia indica
Mn2+ divalent cation requirement is satisfied by Mg2+, Mn2+ or Fe2+ Serratia indica
NH4+ monovalent cation requirement is satisfied by K+, Rb+ or NH4+ Serratia indica
Rb+ monovalent cation requirement is satisfied by K+, Rb+ or NH4+ Serratia indica
Rb+ maximal activity at 100 mM, Km: 13 mM Serratia indica

Organism

Organism UniProt Comment Textmining
Serratia indica
-
IFO 3759
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + 7,8-dihydropteroate + L-Glu
-
Serratia indica ADP + phosphate + 7,8-dihydrofolate
-
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