| Regulated Operon: | exoA-ccpB | 
| Genes | Synonyms | Direction | Genome position | Function | COG ID | Genus clusters | 
|---|---|---|---|---|---|---|
| exoA | - | 4196804..4197562 | COG0708 | |||
| ccpB | yyaG | - | 4195810..4196745 | putative transcriptional regulator (LacI family) | COG1609 | 
| Operon evidence: | Northern blotting | 
|---|---|
| Reference: | BSORF, Chauvaux S, et al. (1998), Shida T, et al. (1999) | 
| Comments: | Chauvaux et al. note that a ccpB-lacZ translational fusion was not expressed when only 183 nucleotides of upstream DNA were present, suggesting that ccpB is transcribed from a promoter further upstream. Chauvaux et al. propose an exoA-ccpB-yyaHI operon. SubtiList lists a potential terminator between exoA and ccpB. Microarray data show a small probability (0.06 Bayesian probability) that exoA and ccpB are in the same operon. Northern blotting, which was performed with an exoA probe only, show an exoA-ccpB transcript of about 2.0 kb (BSORF). | 
| Binding factor | Regulation | Location | Absolute position | Binding seq.(cis-element) | Experimental evidence | 
|---|---|---|---|---|---|
| SigG | Promoter | ND | ND | ND | Salas-Pacheco JM, et al. (2005): NB RG DB | 


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