┌─ Escherichia coli (399-464/464) K12 (107)  
┌──────────────────────────────────────────────────────────────┴──── Escherichia coli (399-464/464) 1044A (25)  
┤                                                            ┌─ Escherichia coli (409-471/472) 101-1 (4)  
└───────────────────────────────────────────────────────────┬┴──── Escherichia coli (147-209/210) OP50   
                                                            └───┬─ Escherichia coli (409-471/472) K12 (124)  
                                                                └┬──── Escherichia coli (427-489/490) 042 (1)  
                                                                 └──── Escherichia coli (409-471/472) SMS-3-5   
  
Arabinose-proton symporter (7)