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. 2011 Sep;77(17):5981–5987. doi: 10.1128/AEM.00093-11

Fig. 4.

Fig. 4.

Hydration/dehydration and hydroxylation of tertiary alcohol compounds catalyzed by oxygenase-like enzymes. (A) Proposed mechanism for the formation of isobutene from TBA and of beta- and gamma-isoamylene from TAA by an oxygen-dependent oxygenase-like enzyme from A. tertiaricarbonis L108. (B) Formation of terpineol, carveol, and perillyl alcohol from limonene by limonene hydroxylase from Geobacillus stearothermophilus BR388 (9, 44).