_EC 1.6.5.- With a quinone or similar compound as acceptor. 56 PDB entries  
EC 1.-.-.- Oxidoreductases. [8,663 PDB entries]
EC 1.6.-.- Acting on Nadh or nadph. [239 PDB entries]
EC 1.6.5.- With a quinone or similar compound as acceptor. [56 PDB entries]    
EC 1.6.5.1 Deleted entry. [-]
EC 1.6.5.2 NAD(P)H dehydrogenase (quinone). [40 PDB entries]
EC 1.6.5.3 NADH:ubiquinone reductase (H(+)-translocating). [2 PDB entries]
EC 1.6.5.4 Monodehydroascorbate reductase (NADH). [-]
EC 1.6.5.5 NADPH:quinone reductase. [7 PDB entries]
EC 1.6.5.6 p-benzoquinone reductase (NADPH). [-]
EC 1.6.5.7 2-hydroxy-1,4-benzoquinone reductase. [-]
EC 1.6.5.8 NADH:ubiquinone reductase (Na(+)-transporting). [-]
EC 1.6.5.9 NADH:ubiquinone reductase (non-electrogenic). [7 PDB entries]
EC 1.6.5.10 Nadph dehydrogenase (quinone). [-]

[-] signifies that there are no PDB entries for the given enzyme subclass