| Regulated Operon: | serS | 
| Genes | Synonyms | Direction | Genome position | Function | COG ID | Genus clusters | 
|---|---|---|---|---|---|---|
| serS | + | 20878..22155 | seryl-tRNA synthetase | COG0172 | serS-BAC serS-CLO serS-STR | 
| Operon evidence: | Genome analysis | 
|---|---|
| Reference: | Condon C, et al. (1996) | 
| Comments: | Transcriptional readthrough occurs at the stem-loop upstream of serS if uncharged serine tRNA binds to the T-box motif in the nascent mRNA transcript. The tRNA anticodon binds to the UCC codon in the sequence GAAUCCAUC in the serS leader mRNA. | 
  
| Binding factor  | 
  Regulation | Location | Absolute position | Binding seq.(cis-element) | Experimental evidence | 
|---|---|---|---|---|---|
| TrnD-Ser | Positive | ND | 20780..20803 | GTTTTCAATCAGGGTGGCAACGCG | 
  Condon C, et al. (1996): HM | 
| Terminator sequence | Absolute position | Position from stop codon | Free energy [kcal/mol]  | 
  Downstream of | 
|---|---|---|---|---|
| CAACGCGAGAGCTCTCGTCCCTTTATGGGGATGAGGGCTCTTTTTATTTTCGATA >>>>>>>>>>>>>> <<<<<<<<<<<<<<  | 
  serS | |||
| GTAAATTATGGAAAGGCGTGCCTGACAAGGTGCGCCTTTTTGCTTATGTAA >>>>>>>>> <<<<<<<<<  | 
  serS | 


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