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Literature summary for 1.1.3.2 extracted from

  • Yorita, K.; Matsuoka, T.; Misaki, H.; Massey, V.
    Interaction of two arginine residues in lactate oxidase with the enzyme flavin conversion of FMN to 8-formyl-FMN (2000), Proc. Natl. Acad. Sci. USA, 97, 13039-13044 .
    View publication on PubMedView publication on EuropePMC

Protein Variants

Protein Variants Comment Organism
R181K mutation in conserved residue, efficiency of reduction of the oxidized flavin by L-lactate is greatly reduced Aerococcus viridans
R181K/R268K mutation in conserved residue, efficiency of reduction of the oxidized flavin by L-lactate is greatly reduced Aerococcus viridans
R181M mutation in conserved residue, efficiency of reduction of the oxidized flavin by L-lactate is greatly reduced Aerococcus viridans
R268K mutation in conserved residue, efficiency of reduction of the oxidized flavin by L-lactate is greatly reduced. Mutation also results in a slow conversion of the 8-CH3-substituent of FMN to yield 8-formyl-FMN Aerococcus viridans

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.029
-
O2 mutant R181K, pH 7.0, 25°C Aerococcus viridans
0.03
-
O2 mutant R181M, pH 7.0, 25°C Aerococcus viridans
0.16
-
O2 wild-type, pH 7.0, 25°C Aerococcus viridans
0.94
-
L-lactate wild-type, pH 7.0, 25°C Aerococcus viridans
7.5
-
L-lactate mutant R181K, pH 7.0, 25°C Aerococcus viridans
103
-
L-lactate mutant R181M, pH 7.0, 25°C Aerococcus viridans

Organism

Organism UniProt Comment Textmining
Aerococcus viridans Q44467
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-lactate + O2
-
Aerococcus viridans pyruvate + H2O2
-
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