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Literature summary for 1.1.3.15 extracted from

  • Furuichi, M.; Suzuki, N.; Dhakshnamoorhty, B.; Minagawa, H.; Yamagishi, R.; Watanabe, Y.; Goto, Y.; Kaneko, H.; Yoshida, Y.; Yagi, H.; Waga, I.; Kumar, P.K.; Mizuno, H.
    X-ray structures of Aerococcus viridans lactate oxidase and its complex with D-lactate at pH 4.5 show an alpha-hydroxyacid oxidation mechanism (2008), J. Mol. Biol., 378, 436-446.
    View publication on PubMed

Crystallization (Commentary)

Crystallization (Comment) Organism
unbound enzyme and in complex with D-lactate, both at pH 4.5. In the complex structure, the D-lactate resides in the substrate-binding site, but an active site base, His265, flips far away from the D-lactate, as compared with its conformation in the unbound state at pH 8.0. The flip of His265 triggers a large structural rearrangement, creating a new hydrogen bonding network between His265-Asp174-Lys221 and, furthermore, brings molecular oxygen in between D-lactate and His265. In the mechanism of the subsequent oxidative half-reaction, His265 flips back, pushing molecular oxygen into the substrate-binding site as the second substrate, and the reverse reaction takes place to produce hydrogen peroxide Aerococcus viridans

Organism

Organism UniProt Comment Textmining
Aerococcus viridans
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