Cloning of the genes for a 4-sulphocatechol-oxidizing protocatechuate 3,4-dioxygenase from Hydrogenophaga intermedia S1 and identification of the amino acid residues responsible for the ability to convert 4-sulphocatechol.

Abstract excerpt

The genes for a protocatechuate 3,4-dioxygenase (P34O-II) with the ability to oxidize 4-sulphocatechol were cloned from the 4-aminobenzenesulphonate(sulphanilate)-degrading bacterium Hydrogenophaga intermedia strain S1 (DSMZ 5680). Sequence comparisons of the deduced amino acid sequences of both subunits of the P34O-II from H. intermedia S1 (PcaH-II and PcaG-II) with those of another P34O-II, previously obtained...

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