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Schematic representation of the ORFs on the two strands of the pAO1 DNA. Dark blue, ORFs related to nicotine utilization; light blue, ORFs related to carbohydrate; violet, ORFs related to amino acid and sarcosine; red, ORFs related to IS elements and composite transposons; yellow, ORFs related to replication; green, ORFs related to conjugation; brown, conserved hypothetical ORFs; white, ORFs with no known function.
