_EC 7.1.-.- Catalysing the translocation of hydrons. 1,088 PDB entries  
EC 7.-.-.- Translocases. [2,261 PDB entries]
EC 7.1.-.- Catalysing the translocation of hydrons. [1,088 PDB entries]
EC 7.1.1.- Hydron translocation or charge separation linked to oxidoreductas [673 PDB entries]
EC 7.1.2.- Hydron translocation linked to the hydrolysis of a nucleoside tri [404 PDB entries]
EC 7.1.3.- Hydron translocation linked to the hydrolysis of diphosphate. [11 PDB entries]