FIG. 1.

Map of the 7.0-kb region containing the AC resistance and accessory genes. The gene regions represent the following annotated or determined protein assignments (left to right): a GABA permease (perm), GABA aminotransferase, a CsaA export chaperone, the demonstrated AC hydrolase (this study), DMT permease, GABA transporter, DMT permease, and a TetR transcriptional regulatory protein. The region of the 3.4-kb clone is shown at the bottom. The circles represent predicted transcription termination sites (http://www.softberry.com/berry.phtml?topic=fgenesb&group=help&subgroup=gfindb).