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Illustration of the two enzymatically catalyzed reactions for HT utilization in Paracoccus denitrificans PD1222 and of the proposed mechanism of spontaneous sulfinoacetaldehyde desulfination to give acetaldehyde and sulfite. Compounds: I, hypotaurine; II, sulfinoacetaldehyde; III, ethenol; IV, sulfur dioxide; VI, acetaldehyde; V, sulfite.
