┌───────── Escherichia coli (269-602/602) 1044A (24)  
┤ ┌─ Escherichia coli (269-602/602) K12 (68)  
└─┤┌─ Escherichia coli (269-596/596) E110019 (1)  
  └┤ ┌─────────── Escherichia coli (269-602/602) MS 187-1   
   └┬┴─────────── Escherichia coli (269-602/602) ETEC H10407 (2)  
    └──────────┬─────────────────────────────────────────────────────── Escherichia coli (269-602/602) H299 (5)  
               └─ Escherichia coli (269-602/602) 536 (26)  
  

  
Succinate dehydrogenase flavoprotein subunit (EC 1.3.99.1)
 (7)