| Regulated Operon: | yxbBA-yxnB-asnH-yxaM | 
| Genes | Synonyms | Direction | Genome position | Function | COG ID | Genus clusters | 
|---|---|---|---|---|---|---|
| yxbB | yxaP | + | 4096436..4097170 | COG0500 | ||
| yxbA | yxaO | + | 4097170..4097439 | |||
| yxnB | + | 4097443..4097925 | ||||
| asnH | yxaN | + | 4097946..4100189 | asparagine synthetase (glutamine-hydrolyzing) | COG0367 | |
| yxaM | + | 4100186..4101385 | COG0477 | 
| Operon evidence: | Northern blotting (5.5 kb transcript) | 
|---|---|
| Reference: | Yoshida K, et al. (1999), Yoshida K, et al. (2000) | 
| Comments: | Yoshida et al. (2000) found several shorter transcripts, starting at the promoter in front of yxbB. These transcripts are not mentioned in Yoshida's 1999 paper. | 
  
| Binding factor  | 
  Regulation | Location | Absolute position | Binding seq.(cis-element) | Experimental evidence | 
|---|---|---|---|---|---|
| AbrB | Negative | ND | ND | ND | 
  Hamon MA, et al. (2004): AR RT-PCR | 
| Terminator sequence | Absolute position | Position from stop codon | Free energy [kcal/mol]  | 
  Downstream of | 
|---|---|---|---|---|
| ATCACAGTAAGAAGACCTTCTTATTAAAAGAAGGTCTTCTGCTATTCTATTCAGTTATT >>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<  | 
  yxaM | 


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