┌─ Escherichia coli 536 (16)  
┌─────────────┴─ Escherichia coli MS 185-1   
┤     ┌──────────────────── Escherichia coli MS 84-1   
│     │                                         ┌─ Escherichia coli ED1a (4)  
└─────┤                                        ┌┴──────────────────── Escherichia coli SE15   
      │                    ┌───────────────────┴──────────────────── Escherichia coli TA206   
      │┌───────────────────┴─ Escherichia coli TA280   
      └┤  ┌─ Escherichia coli K12 (91)  
       │ ┌┴──────────────────── Escherichia coli 101-1   
       └┬┴──────────────────── Escherichia coli B185   
        └┬──────────────────── Escherichia coli IAI39 (1)  
         └┬─ Escherichia coli SMS-3-5   
          └───────────────────┬─ Escherichia coli B088   
                              └─ Escherichia coli B171 (7)  
  

  
Sigma factor RpoE negative regulatory protein RseB precursor
 (14)