_EC 7.2.1.- Linked to oxidoreductase reactions. 58 PDB entries  
EC 7.-.-.- Translocases. [2,261 PDB entries]
EC 7.2.-.- Catalysing the translocation of inorganic cations. [485 PDB entries]
EC 7.2.1.- Linked to oxidoreductase reactions. [58 PDB entries]
EC 7.2.1.1 NADH:ubiquinone reductase (Na(+)-transporting). [44 PDB entries]
EC 7.2.1.2 ferredoxin--NAD(+) oxidoreductase (Na(+)-transporting). [4 PDB entries]
EC 7.2.1.3 ascorbate ferrireductase (transmembrane). [5 PDB entries]
EC 7.2.1.4 tetrahydromethanopterin S-methyltransferase. [5 PDB entries]