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Genetic organization of thn genes. A. Cosmids and plasmids used for TFB thn genes sequencing and genetic organization. Genes functionally homologous to TFA thn genes are underlined. A perfect duplication containing thnA1A2 genes is denoted by a dotted line. B, BamHI; Bg, BglII; H, HindIII; Ri, EcoRI; Rv, EcoRV. B. Genetic organization of S. macrogolitabida strain TFA thn genes. C. Proposed tetralin degradation pathway in TFB.
